Open Source GIS Tech Landscape 2026Where development is thriving — mapped from all 358 talks at FOSS4G Hiroshima 2026

↗ Fast-growing● Very active◆ Foundation

Tap any field to see its talks, with time and room.

Clients & Visualization

●Web Mapping & Visualization48 talksMapLibre / OpenLayers / Leaflet 2.0 — plus the new MLT tile format in the making ●Desktop GIS20 talksQGIS 4 migration is this year’s big topic; plugin ecosystem thriving ◆3D Web Visualization7 talksCesiumJS at the core — GPU rendering, geology, weather, history ◆Mobile & Field Survey3 talksQField and Mergin Maps, the offline field-work standards

Processing & Analysis

●GeoAI & Machine Learning38 talksFrom satellite image classification to urban graph networks 1 → 17 talks in a year↗LLMs & AI Agents × GIS17 talksMCP servers, natural-language queries, RAG — talking to GIS has arrived ●Remote Sensing & EO29 talksrasterio / xarray / odc-stac — satellite analysis for everyone New wave↗DGGS (Discrete Global Grids)7 talksOGC standardization sparks a new generation beyond H3 ●Point Clouds & Terrain7 talksPDAL plus new Rust tools; open government point clouds lead the way From Japan●3D City Models & PLATEAU7 talksRe:Earth Flow, PLATEAU SDK — CityGML tooling maturing fast ●Digital Twins & AR6 talksUrban, environmental and construction twins taking shape ◆Routing & Navigation13 talksValhalla / OSRM / pgRouting 4.0 — evolving through Rust & WASM

Data Infrastructure

Headliner↗Cloud-Native Formats40 talksGeoParquet 2.0, PMTiles, COG, Zarr — “just put a file on storage” serving GeoServer 3●Servers, OGC APIs & Catalogs39 talksGeoServer 3 lands this year; STAC becomes the catalog lingua franca ●Spatial Databases10 talksPostGIS as the bedrock; DuckDB Spatial & SedonaDB rising for analytics ◆Core Libraries4 talksGDAL / GEOS / PROJ — the quiet foundation everything stands on

Applications & Community

●Application Domainsby topic mentionsEnvironment & Climate 77 · Disaster & Resilience 39 · Transport & Mobility 35 · Urban & Smart City 35 · Peace, Memory & Heritage 32 · Agriculture & Food 15 · Health 8 ●OpenStreetMap & Open Data14 talksCommunity mapping, open addresses, geocoding ●Community, Education & Governance23 talksGrowing local chapters, sustaining projects, teaching GIS

Web Mapping & Visualization

MapLibre / OpenLayers / Leaflet 2.0 — plus the new MLT tile format in the making

Sep 1 (Day 1)

Talk13:00 @ Phoenix Hall

Leveraging Open Geospatial Data in Journalism: Visualization and Analysis Workflows at Nikkei Visual Data

Ryohei Senzaki; Ryo Namiki; Sotaro Sakai

Talk13:00 @ Room3

Explore open-source tools to create digital urban models for MapStore

Lorenzo Natali; Tobia Di Pisa; Stefano Bovio

Talk13:00 @ Room5

From Binary to Web Maps: Teaching GIS Programming in the Kartoza Internship

Zulfikar Akbar Muzakki

Talk13:00 @ Room6

A Practical Workflow for Reusing Proprietary Stormwater Model Data in Open-Source GIS Using CSV and SWMM Formats with Giswater

Albert Bofill; Yoshihiro Shibuo

Porting JTS Interior Point Algorithm to TypeScript and Rust/WASM

Talk13:30 @ Ran2

State of MapStore

Lorenzo Natali; Tobia Di Pisa; Stefano Bovio

Talk14:30 @ Phoenix Hall

QGIS Web Client (QWC) - project status and new developments

Marco Hugentobler

Web-Based High-Performance Traffic Simulator: Advancing an Integrated Interaction Platform for Urban Planning Decision-Making

Cheun-gill Park; KIMDEOKHYEON

Talk14:30 @ Ran2

State of the MapLibre Tile Format

Yuri Astrakhan; Frank Elsinga

Talk14:30 @ Room2

Hillshading for Real-time Lighting

GeoReports Web Application

Talk15:30 @ Room3

Leaflet 2.0 is coming – it’s official!

Talk15:30 @ Room6

EIA Scoping Tool and Collaborative Authoring and Review System

Styles-Data Co-Optimisation for Better Performance

gitRmap / “Guitar Map”- Easy Maps for Git users

Talk16:00 @ Ran2

Making Maps Readable: A Dive into Font Rendering in Navara

Adel Refaat Ali Mohamed Elnahas

Talk16:30 @ Ran1

State of TerriaJS

Talk16:30 @ Room2

Interactive web mapping with Equal Earth projection

Pirmin Kalberer

Talk16:30 @ Room5

Seamlessly Compare Maps on QGIS with the QMapCompare Plugin

Talk17:00 @ Room4

State of libCartoSym / libCSCQL2 / libDE9IM

Jerome St-Louis

Talk17:00 @ Room5

Not on Your Google Maps: The Map Is Not the Territory

bonny p mcclain

Talk17:30 @ Room3

Pacific Ocean Portal 2.0

Sep 2 (Day 2)

Talk11:00 @ Ran2

Rendering National Climate Data in the Browser: WebGL Custom Shaders with MapLibre GL JS

Hearing the Map: Spatial Audio as a New Dimension in Web GIS

Tomoaki Hoshino

Talk13:00 @ Ran2

Pedestrian Trajectory Mapping with MapLibre and OpenCV from Videos

Talk13:30 @ Dahlia1

Ensuring Tile Quality in MapLibre Through Automated Testing and CI

Shriharsh Shinde

Talk13:30 @ Room2

Cognitive Motion Design Redefining Interaction in map applications : Use case for Smart Agriculture

Talk14:00 @ Dahlia1

Kartore: A Style Editor and Toolkit for MapLibre

Taiyu Yoshizawa

Talk14:00 @ Room2

Expanding Map Perception: Designing Inclusive Experiences for Colorblind Users

Panupong Promklum

Talk14:00 @ Room3

How map engine optimizes your visualization

Talk15:30 @ Phoenix Hall

A New Approach to MapLibre Style Editing

Talk15:30 @ Room1

Developing Rendering Effect Extensions as a GIS Beginner

Talk15:30 @ Room6

We still need Raster tiles... then, chiitiler!

Kanahiro Iguchi

Talk16:00 @ Dahlia1

Maplibreum: like Folium - but based on Maplibre

Kauê de Moraes Vestena

Talk16:00 @ Room2

Noodles.gl: A visual programming language for animation, geospatial and the web

Academic16:30 @ Cosmos2

Implementation and evaluation of geography education using QGIS for Japanese high school students

Hiroyuki Yamauchi; Takashi Oguchi; Takuro Ogura; Kotaro Iizuka; Yuriko Yazawa

Talk17:00 @ Room1

Turning Japan’s Open Data into a Modern Web Map

Talk17:30 @ Dahlia2

When Maps Are Not Enough: Exploring ‘Spatial Narrative Interfaces’ for Geospatial Insight

Nattacha Theeranaew

Talk17:30 @ Room4

Development of a Wildfire Fireline Visualization Pilot System and Its Enhancement Plan Using Open-Source GIS Technologies

Juhyeon Gim; YOUNGWOOK YIM; dawoon Kim

Sep 3 (Day 3)

Talk11:00 @ Room1

One Project, All Views: QGIS Map Themes

11:05 @ Phoenix Hall

From Open Source to Real-World Impact: Building Sustainable Geospatial Solutions with Maplat

Talk11:30 @ Room3

Development Planning of a Web Map Application for the Supplementary Social Studies Textbook “Watashitachi no Hiroshima”

Talk13:30 @ Room3

Beyond the Map: Designing GIS to Help People Understand the Places They Live

RED (XU CONG); Waqas Zulfiqar

Talk13:30 @ Room4

Do formats exist? Towards a unified foundation for data tooling

Talk14:00 @ Ran1

Rekichizu: Designing Modern-Style Historical Maps to Preserve Cultural Memory

Hajime Kato; Asanobu Kitamoto

Talk14:30 @ Ran1

Terra Draw - bring drawing feature to all map applications

Talk14:30 @ Room2

Less to Think About: Bridging the Usability Gap in Geospatial Platforms

Keynote16:00 @ Phoenix Hall

Mapping for a Sustainable World: Bridging the Policy Data Nexus with FOSS and Open Science

Britta Ricker; Toshikazu Seto

Desktop GIS

QGIS 4 migration is this year’s big topic; plugin ecosystem thriving

Sep 1 (Day 1)

QGIS Hub: The Community Resource Ecosystem You Might Not Know About

Talk13:30 @ Phoenix Hall

QGIS 4 is coming and my plugins will break

Bridging the Language Gap: How the QGIS Brazil Community Drives Open Source Adoption in the Global South.

Narcélio de Sá

Scaling Geospatial Communities: 16 Years of QGIS Brazil and the Path to LATAM 2024

Narcélio de Sá

Talk14:00 @ Room6

Making drainage engineers' life easy: A culvert designers plug-in for QGIS

Blake; Nimalika Fernando

QGIS + VS Code = DevTools

Academic16:00 @ Cosmos2

Examining the Relationship Between Tatara Iron Production and Grassland Distribution in Western Japan: An Open Geospatial Approach to Historical Landscape Analysis

Nobusuke Iwasaki; Ayaka Onohara; Takatora Bito

Talk16:30 @ Room6

The #1 plugin for QGIS

Talk17:00 @ Room6

Sep 2 (Day 2)

Talk14:30 @ Ran2

GeoGirafe: a community-driven WebGIS built plugin by plugin

Stéphane Malta e Sousa

Talk15:30 @ Room4

A Japanese Company’s Journey in Building the QGIS Community

Talk16:30 @ Room6

Finding(!) and publishing data, simplified with GeoCat Bridge

Sander Schaminee; Jeroen Ticheler

Talk17:00 @ Room6

QGIS in Your Language

Talk17:30 @ Room6

QGIS "Ask me Anything" session

Marco Bernasocchi

Sep 3 (Day 3)

Talk11:00 @ Dahlia1

Participatory Renewable Energy Zoning Using QGIS and Open Data: A Case Study in Urahoro, Hokkaido

Talk11:30 @ Room1

Quality Control Leveraging the Characteristics of Proprietary and Open-Source GIS: Discrepancies in Topology Validation and Strategic Selection

Talk13:00 @ Ran1

Current GIS Applications in Hokkaido Agriculture and Hokuren's FOSS4G Initiatives with QGIS

Talk14:00 @ Himawari

From Zero to Mapping Mojo: Teaching QGIS Through Hands-On Workshops

14:05 @ Phoenix Hall

Connecting the dots around QGIS

Marco Bernasocchi

Academic14:30 @ Cosmos1

Feasibility to detect rapid change and disappearance of seagrass: Lessons from nearly 80 years of vegetation change in the Ako, Seto Inland Sea, Japan

Takehisa Yamakita

3D Web Visualization

CesiumJS at the core — GPU rendering, geology, weather, history

Sep 1 (Day 1)

Integration of Numerical Weather Prediction Models: A 3D Spatial Information Approach

Sep 2 (Day 2)

Iwfgara: Visualizing Numerical Weather Prediction Data in an Open Source Web-based 3D GIS

Talk14:30 @ Room1

Mapping the Distance to History: Reading Barefoot Gen on a Map with Open Geospatial Tools

Talk16:30 @ Ran1

Rendering Massive Moving Points at 60fps on CesiumJS: Real-Time Dynamic Vector Rendering with GPU Textures

Talk16:30 @ Ran2

From Boring XML to 3D Tiles: Building a Geological Borehole Viewer with CesiumJS

Talk17:00 @ Ran2

Use of Open Source Software in the ESA Planetary Science Archive

Talk17:30 @ Room3

Re:Earth: Empowering Non-Experts with Open Source WebGIS — Case Studies from Educational Settings

Mobile & Field Survey

QField and Mergin Maps, the offline field-work standards

Sep 1 (Day 1)

Talk13:30 @ Room4

From field data collection to web-based analysis and sharing : building the PINOGIO geospatial platform with open-source technologies

Talk15:30 @ Room4

Mapping the World, Empowering People with QField’

Marco Bernasocchi

Sep 2 (Day 2)

Talk13:30 @ Room3

MapConductor: An Interoperability Layer for Mobile Map SDKs

Masashi Katsumata

GeoAI & Machine Learning

From satellite image classification to urban graph networks

Sep 1 (Day 1)

Academic13:30 @ Cosmos1

Scaling Open 3D City Models: Implementation and Validation of an AI-driven Automated Generation Tool “AI City Model Maker beta version”

Mayumi Mizobuchi

Talk14:30 @ Room6

Storing your Satellite in a DGGS

Talk15:30 @ Room5

Where next for OSGeo?

Academic15:30 @ Cosmos2

An open-source GeoAI workflow for mapping historic agricultural terraces

Filippo Brandolini

Talk16:00 @ Room1

Detecting Rooftop Solar Panels with Deep Learning, using Open Remote Sensing Data and OpenStreetMap

Danielle; Gefei Kong

Talk16:00 @ Room2

Reproducibility in geospatial research: a case study.

Talk16:00 @ Room4

City2Graph: Open Source Python Library for GeoAI with Graph Neural Networks

Talk16:30 @ Room1

Sharing your GeoSpatial Models , MLOps Architecture in fAIr

Kshitij Raj Sharma; Omran NAJJAR; Sam Woodcock

Talk16:30 @ Room4

State of DGGAL (Discrete Global Grid Abstraction Library)

Jerome St-Louis

Academic17:00 @ Cosmos2

Application of SUMO in Simulation of Optimized Traffic Light Timing derived using Artificial Neural Network and GIS

Nabilah Naharudin

Sep 2 (Day 2)

Talk11:00 @ Room1

Beyond Metadata Search: STAC, Vector Embeddings, and GeoAI

Talk11:30 @ Ran2

Combining DuckDB, MapLibre GL JS, and AI for Browser-Native Map Visualization

Piyush Chauhan; Hiroki Inoue; Nimit Bhandari

Talk11:30 @ Cosmos1

End-to-End Deep Learning Analysis Pipeline for Early-Season Crop Mapping using Sentinel Data and Continuous Wavelet Transforms

Sarawut Ninsawat; Thantham Khamyai; sittichai choosumrong

Academic11:30 @ Cosmos2

A Comprehensive Disaster Risk Analysis Model with GeoAI

Muhammed Oguzhan Mete

Talk13:00 @ Room6

National Map Agent: An Open Geospatial Architecture for Knowledge Graph–Driven GeoAI

Talk14:00 @ Room5

spCF: an R package for coarse-to-fine spatial modeling

Daisuke Murakami

Talk14:00 @ Room6

Open Geo Embeddings: Models, Representations, and Systems

Talk15:30 @ Room3

Using AI and Digital Twin in Solving One of the World’s Most Plastic Polluting River

Rudolph Peralta

Talk15:30 @ Room5

Streetview Image Inpainting with Image-Edit Diffusion Models

Talk16:00 @ Room1

Efficient pixel-scale upstream covariate computation for environmental machine learning

Kajetan Chrapkiewicz

Talk16:00 @ Room4

Turning Statistics into Maps with UNICEF’s Open Source Geospatial Solutions

Talk16:00 @ Room5

Estimation of Soil Organic Carbon and Total Nitrogen in Thailand's Rubber Plantations Using Multispectral Imagery and Machine Learning Algorithms

Pramet Kaewmesri

Talk16:30 @ Phoenix Hall

Breaking the Barriers: Using Generative AI for Global Geospatial Data Accessibility

Talk16:30 @ Dahlia1

Eyes-Free Navigation: OSM-Powered Spatial Audio and AI Navigation for Visually Impaired Users.

Talk16:30 @ Room5

AI-accelerated development and FOSS4G - a perspective into the future

Daniel Araújo Miranda

Talk17:00 @ Room3

V-World Platform Enhancement for Digital Twin–Based Geospatial Services

Song Pyo Hong(Spatial Information Industry Promotion Agency)

Talk17:30 @ Room5

Bridging Cloud and Community: AWS AI Services Meet Open Source Geospatial Tools

Guyu Ye; Ivan Cui

Sep 3 (Day 3)

Academic11:00 @ Cosmos1

Comparing uncertainty quantification methods for Random Forest-based digital soil mapping

Talk11:30 @ Ran2

From Data to Insights: Decision-Support tool application with the Goa Agriculture Department

Academic11:30 @ Cosmos1

Synergistic use of PRISMA hyperspectral data and a random forest algorithm to map soil nutrients in sugarcane fields in Northeast Thailand

Jaturong Som-ard

Academic11:30 @ Cosmos2

Aitchison-Loss Training with Geospatial Embeddings Sharpens Compositional Land-Cover Maps

Narumasa Tsutsumida; Ayato Kanno

11:40 @ Phoenix Hall

The Challenge of Resolving Social Issues through the Integration of Real-World Geospatial Data with AI

Hiroshi Kanasugi

Academic13:00 @ Cosmos2

Learning with Spaceborne LiDAR for Enhancement of Bare-Earth Digital Elevation Models from Global Data

Talk13:30 @ Room1

Green Infrastructure Baseline using Open-Source Geospatial Data for Dammam, Saudi Arabia

Sultan Hasan Alsultan

Talk14:00 @ Room3

Offline-First Geospatial Architecture for Tree-Level Analysis Using FOSS4G Pipelines

Academic14:30 @ Cosmos2

Integrating Machine Learning with Open-Source GIS for Reproducible High-Resolution Terrain Classification and Hazard Mapping from UAV LiDAR Data

Nikola Kranjčić

Academic15:00 @ Cosmos1

Regional 10-m Mapping of Forest Foliage Height Diversity in Hokkaido, Japan, Using GEDI and Foundation-Model Satellite Embeddings

Narumasa Tsutsumida; Tetsu Sasaki

Academic15:00 @ Cosmos2

Machine Learning for Terrain Traversability Mapping: Accuracy, Uncertainty, and Data Limitations

Marek Wyszyński; Krzysztof Pokonieczny

LLMs & AI Agents × GIS

MCP servers, natural-language queries, RAG — talking to GIS has arrived

Sep 1 (Day 1)

Academic16:00 @ Cosmos1

Towards a Spatial Knowledge Mesh: A Metamodel for Federated and Interoperable Spatial Knowledge Graphs to Enable Geospatial Awareness, Integrity, Provenance, and Trust in Large Language Models

Nathan McEachen

Talk17:00 @ Room2

Designing Web Map Experiences Beyond Too Much Data and Too Little Time with Intelligent AI Processing

Mayurachat Saechan

Sep 2 (Day 2)

Talk11:00 @ Dahlia1

Title: Natural Language Querying of STAC Catalogs Using LLMs for Geospatial Visualization

Pakpoom Najanthom

Academic11:00 @ Cosmos2

Towards Automated Map JSON Style from Spatial Vector Data Using MCP

Arissara Sompita

Talk13:30 @ Room6

GeoLLM in the Wild: Open Source AI Meets Geospatial

Intent-Centric Wildfire Monitoring: LLM and VLM Orchestration for Everyone

Talk14:00 @ Ran2

Teaching AI to Contribute to Open Source: Lessons from MapLibre Agent Skills

Talk14:30 @ Room6

Bridging LLM and GIS via Model Context Protocol for Conversational Flood Data Analysis

Narathorn Noophum

Talk15:30 @ Ran1

Awakening Dormant Geospatial Data: Structuring Large-Scale Government Documents with LLM

Kazuma Tsuchiya; Kasra Mahsouli; Tomohiro Akiya

Talk16:30 @ Himawari

Building an AI Map Agent with Self-Hosted Planet-Scale OSM and Tiny LLMs

Talk17:00 @ Dahlia1

Portable Spatial-Semantic RAG for 3D City Models Using DuckDB

Talk17:00 @ Room2

Building an MCP Server Ecosystem on Japan's National-Scale Geospatial Open Data Platform

Talk17:00 @ Room5

Methods for Introducing Geospatial Awareness to Large Language Models with Integrity, Provenance, and Trust through Open Standards and Open Source

Nathan McEachen

Talk17:30 @ Dahlia1

A Self-Hostable Open-Source Geospatial Platform for Small Teams, with Natural Language Querying via MCP

Sep 3 (Day 3)

11:00 @ Phoenix Hall

The Great Retooling

Academic11:00 @ Cosmos2

A Systematic Comparison of RAG Architectures for Geographic POI Question Answering Using OpenStreetMap Data

13:30 @ Phoenix Hall

Beyond the API: Why AI-Era Data Integration Needs Open Standards, Not Just Open Data

Remote Sensing & EO

rasterio / xarray / odc-stac — satellite analysis for everyone

Sep 1 (Day 1)

Creating Large-Scale Very High Resolution Satellite Mosaics with High Spatial and Spectral Accuracy

Iosefa Percival; Kanoa Lindiwe

Talk14:00 @ Room2

From NDVI to 260+ Indices: Five Years of Awesome Spectral Indices

David Montero Loaiza

Talk14:00 @ Room5

Training without Barriers: Lessons for Building Geospatial Capacity

Seabilwe Pontso Leah Tilodi

Talk15:30 @ Room1

landlensdb: A Python Package for Managing Proximity Sensing Imagery

Iosefa Percival; Narumasa Tsutsumida

Academic15:30 @ Cosmos1

DINO-EdgeQuery: Edge-First Polygon Decoding for Building Footprint Extraction from Satellite Imagery

Academic17:00 @ Cosmos1

Capturing park-use behavior patterns using volunteered street view imagery: Does the likelihood increase with the volume of contributions?

Talk17:30 @ Room2

ZOO-Project: news about the Open Source Generic Processing Engine

Talk17:30 @ Room5

From GeoTIFF to Kriging: A Fully Open-Source Remote Sensing Workflow

Sep 2 (Day 2)

Keynote09:30 @ Phoenix Hall

Memory, Technology, and Peace — Rebooting Memories and Geospatial Technology

Hidenori Watanve

Academic11:00 @ Cosmos1

Detecting Stable Urban Heat Island Signals in Satellite Land Surface Temperature Time Series: A Case Study of Zagreb, Croatia

Sanja Šamanović

Finding the Street-Level Images You Need in Mapillary

Talk13:30 @ Himawari

Detecting Quarry Pond Remnants on a Japanese Island Heritage Site Using Sentinel-2 Imagery and Open-Source Remote Sensing Tools

Talk14:00 @ Phoenix Hall

Open Vector Tiles for the Actual Vegetation Map 2024 and Launching the Satellite-based Vegetation map 2030

Shingo YAMASHITA

Talk14:30 @ Room2

Beyond the Pixels: A PM’s Perspective on "Data Transition" – Transforming Satellite Imagery into Actionable Disaster Solutions

Raksina Maneechan

Talk15:30 @ Ran2

Efficient Search and Set Operations for Spatial IDs

Suzu Shimokawa; Tomoro Saito; 加納祐吾

Talk16:00 @ Dahlia2

Mapping invasive canopy-smothering vines in the tropical Pacific using SAR and open-source geospatial tools

Iosefa Percival

Talk16:00 @ Room3

The M4S Project: Scaling Seagrass Conservation in Timor-Leste through Participatory FOSS Workflows

Honey Fombuena; Dinar Adiatma

Academic17:00 @ Cosmos2

Towards an open registry of Earth observation instruments

David Montero Loaiza

Talk17:30 @ Himawari

City-scale imagery generation using a handful of cheap consumer drones

Talk17:30 @ Ran2

i.hyper: processing hyperspectral imagery in GRASS

Alen Mangafić; Tomaž Žagar; Yann Chemin

Sep 3 (Day 3)

13:00 @ Phoenix Hall

Orbitalnet : Enabling Geospatial Intelligence Architecture

Academic13:00 @ Cosmos1

Data4Land - reproducible open-source tool for enrichment of land-use/land-cover rasters and connectivity maps.

Academic13:30 @ Cosmos1

Evaluating spectral diversity approaches for tree species diversity mapping in hemi-boreal forests using Sentinel-2 and biodivMapR

Academic13:30 @ Cosmos2

Eliminating Temporal Misalignment in SAR Flood Detection with a ConvLSTM-Siamese Approach Using Sentinel-1 Time Series

中嶋達也; Narumasa Tsutsumida

Talk14:00 @ Room1

From Drone to Map: An Open-Source Workflow for High-Resolution Imagery in Remote Landscapes of the Pilbara, Western Australia

Danielle Whiteley

Talk14:00 @ Room2

Eurostat vs OSM vs Census: Choosing Open Mobility Data for Urban Function Maps

Marija Ercegovac

Academic14:00 @ Cosmos1

Mapping Nearshore Cladophora in Lake Ontario: An Automated Open-Source Sentinel-2 Workflow and Experimental Index Derivation

TonyLiu; Shichao Wang

Talk14:30 @ Dahlia1

Open Source Access Options for NASA-ISRO Synthetic Aperture Radar (NISAR) Mission Data

Heidi Kristenson; Alex Lewandowski

Talk15:00 @ Ran1

Caring for a Living Park: An Open-Source Geospatial System Inspired by Field Experience (Cerro Kavaju, Paraguay)

Atahualpa Ayala Gómez

DGGS (Discrete Global Grids)

OGC standardization sparks a new generation beyond H3

Sep 1 (Day 1)

What is the optimal resolution of a DGGS for forest cover mapping and monitoring?

Talk14:00 @ Ran2

The state of GeoPlegma

Luís M. de Sousa

Z7 Explorer — Why IGEO7 May Succeed H3 as the Standard Hexagonal DGGS

Jorge S. Mendes de Jesus

Sep 2 (Day 2)

Talk13:00 @ Room2

Wave-like Propagation Heatmap from Discrete Data Using Geospatial Indexing Methods

Academic13:30 @ Cosmos1

Grid4Earth: An open-source Python ecosystem for geospatial data integration on the ellipsoidal HEALPix DGGS

Tina Odaka; Alexander Kmoch

Academic14:00 @ Cosmos1

Rectangular vs Hexagonal Grid Tessellation for Spatial Analysis of Invasive Species: A Case Study of Aromia bungii in Saitama, Japan.

Narumasa Tsutsumida; Irhamillah

Academic14:30 @ Cosmos1

FloodA5: An Open-Source Framework for Flood Modelling on an Equal-Area Pentagonal DGGS

Point Clouds & Terrain

PDAL plus new Rust tools; open government point clouds lead the way

Sep 1 (Day 1)

Talk17:00 @ Ran1

Talk17:30 @ Room4

The Challenge of Open Point Cloud Data: What has a local government brought to our communities?

Kazuya Sato; NAOYA SUGIMOTO; Yusuke　Koike

Sep 2 (Day 2)

Speeding up earthwork volume calculation using the point elevation method

Automated Slope Estimation of Retaining Walls Using Drone Photogrammetry Point Clouds

Talk16:00 @ Himawari

Introduction to Point Tiler: A tool for converting large-scale point cloud data into 3D Tiles and its implementation methods

Sep 3 (Day 3)

Talk11:00 @ Room2

Updating National Terrain Model

Academic14:00 @ Cosmos2

A Pipeline for Low-Cost Wide-Area 3D Mapping Using LiDAR-Equipped Mobile Devices and Open Data

3D City Models & PLATEAU

Re:Earth Flow, PLATEAU SDK — CityGML tooling maturing fast

Sep 1 (Day 1)

Academic13:00 @ Cosmos1

From CityGML to Game Engine: A Reproducible Open-Source Pipeline for Interactive 3D Urban Environments Using PLATEAU, Blender, and Godot

Testing PLATEAU Pipelines in Re:Earth Flow When Topology Doesn't Survive

16:00 @ Phoenix Hall

Bringing GIS Data into Digital Twins with 3D Tiles 2.0

Gen Kukita; Amanda Morgan

Sep 2 (Day 2)

Talk13:00 @ Phoenix Hall

Developing a QGIS Plugin for Urban Structure Evaluation

Satoshi Kitashima

Talk13:30 @ Room5

From GIS Visualization Needs to 3D City Models: The Current Trajectory of Project PLATEAU in a Global Context

Haruka Yasuda; Eukarya Inc.; Misaki Baba; Beatrice Charles Mkumbo; Sakurako Tsun

Talk15:30 @ Room2

Voxelization. Cubing 3D Space for Machine.

Hak joon Kim; Seungmin Kwon; joohyoung Kim

Talk17:00 @ Ran1

Three Rewrites and a Standard: A Year Inside Re:Earth Flow

Kyle Waite; Bill Cook

Digital Twins & AR

Urban, environmental and construction twins taking shape

Sep 1 (Day 1)

Academic14:00 @ Cosmos1

Development of an open-source analytical Digital Twin framework for environmental modelling and management

Luke Parkinson; Matthew Wilson

Academic14:30 @ Cosmos2

MUSUBOU-AR: An Open-Source Geospatial AR Framework for Integrating Public GIS Data, Field Authoring, and Disaster Walking Tours

Daisuke Yoshida

Sep 2 (Day 2)

11:00 @ Phoenix Hall

Building Digital Twins with Open-Source mago3DTiler & mago3DTerrainer

11:10 @ Phoenix Hall

3D Digital Twins for Temporary Roads: Leveraging CesiumJS and LandXML on WebGIS

Talk13:30 @ Phoenix Hall

Open-sourcing the ivory tower, or how to remove barriers between scientific modelling and communities through open-source software

Matthew Wilson; Maria Cecilia Vega Corredor

Sep 3 (Day 3)

Talk13:30 @ Room5

Democratizing Urban Development: The Potential of The Urban Digital Twin Platform "Machi Space®"

Hirofumi Hayashi; Kunihiko Hirosawa; Nguyen Van Thien

Routing & Navigation

Valhalla / OSRM / pgRouting 4.0 — evolving through Rust & WASM

Sep 1 (Day 1)

Talk14:00 @ Phoenix Hall

pgRouting project status

Talk14:00 @ Room1

GeoServer 3 complete - final update

Andrea Aime; Jody Garnett

Valinor: Valhalla Meets Rust

Amazon Location Service Plugin for QGIS: Basemaps, Geocoding, and Routing

Yasunori Kirimoto

Talk14:30 @ Room3

Ferrostar: Tackling Navigation Challenges Through Collaboration

Talk15:30 @ Ran2

GeoServer 3 tour

Academic16:30 @ Cosmos2

GIS-Based Walking Map Isochrones in Measuring Transit Catchment: A Spatial Approach to Urban Accessibility

Academic17:30 @ Cosmos2

Tool Selection for Detailed Accessibility Analysis Using GTFS Data: The Case of the Yamagata Urban Area

Sep 2 (Day 2)

A Map-First Conference Guide App with MapLibre for FOSS4G Hiroshima 2026

Haruki Inoue; Ryosuke Aoki

Tokyo Last Train Map: Visualizing "When You Can't Get Home" with Open Data from 17 Rail Operators

Academic17:00 @ Cosmos1

Making OGC IndoorGML 2.0 Web-Ready: API – IndoorFeatures with IndoorJSON

Dong Gwon; Seongmin Choi

Sep 3 (Day 3)

Talk13:00 @ Room1

From Legacy Data to National Standards: Preparing a Brazilian City for Federal Interoperability with FOSS4G

Narcélio de Sá

Talk13:30 @ Ran2

Inside the Engine of “KnoWaterleak”: Real-Time Search and On-Demand Vector Tiles for Large Pipeline Data

Kenji Takase; Eugene Kim

Cloud-Native Formats

GeoParquet 2.0, PMTiles, COG, Zarr — “just put a file on storage” serving

Sep 1 (Day 1)

Talk13:00 @ Room2

Browser-based raster reprojection with GPU-accelerated pixel resampling

Talk13:30 @ Room3

Beyond Shapefile: A Taxonomy of Modern Geospatial Data Formats

Talk14:00 @ Room4

SedonaDB: Why Yet Another Geospatial Database Engine?

Talk14:30 @ Room4

Breaking the Browser’s Limit: High-Performance Spatial Analytics with GeoArrow & DuckDB

Phanukorn Kongphet

15:30 @ Phoenix Hall

The Elements of MIERUNE — Cloud-Native Engineering Meets Open Source Geospatial

Kanahiro Iguchi

Talk15:30 @ Room2

Fast, interactive, customizable raster data visualization in Python & the browser with deck.gl-raster

Talk16:00 @ Room3

End-to-End Satellite Data Pipeline: Airflow Orchestration, Zarr Storage, and LandTrendr Analysis

Tanaporn Songprayad

Talk17:00 @ Ran2

The modern STAC software ecosystem

Talk17:30 @ Ran2

Serving earth observation data with GeoServer: addressing real world requirements

Andrea Aime; Simone Giannecchini

Sep 2 (Day 2)

11:20 @ Phoenix Hall

From Satellite Data to Actionable Geospatial Applications: Building ArkEdge Insights with Open Source Technologies

11:30 @ Phoenix Hall

Building Cloud-Native Basemaps with PMTiles

Talk11:30 @ Room1

Applying OSS “Ouranos GEX”: Lessons from PoC and the Path to Java-Based Development

Talk13:00 @ Room4

Open Standards and Tools to Accelerate Global Crisis Response

Talk13:00 @ Room5

Bridging the Gap: Practical Spatial Partitioning of GeoParquet in an Evolving Ecosystem

Talk13:30 @ Ran2

Data Dashboards with Provenance using Cloud-Native Geospatial Processing

Alex Leith; William Jones

Talk13:30 @ Room1

Cloud-Native Raster Workflows with TiTiler

50 Lines of Python: Neighborhood DNA from Overture Maps Places

Marija Ercegovac

Improving Water Data Access with Cloud Native Geospatial Formats

Talk14:00 @ Room1

A Proposal for Hierarchically Organized GeoParquet

Kanahiro Iguchi

Talk14:30 @ Room3

Accelerating Climate Action: Building GIS Dashboards with openEO and titiler

Talk14:30 @ Room5

Mapping Fiber Without Operator Data: Evidence-Based Connectivity Indicators

CRISTIANE HONORA MILLAN

Talk16:00 @ Phoenix Hall

Impactful Data: International cooperation to increase the value of open-source data & software including in hazard scenarios

Jesse Whitehead; Fiu Etike Penjueli

Talk17:30 @ Ran1

The metadata problem

Talk17:30 @ Room1

From Cloud to GPU: Inside the Modern Vector Tile Rendering Pipeline

Sep 3 (Day 3)

Talk11:00 @ Room4

ESGF Next Generation

Talk11:00 @ Room5

From Chaos to Confidence: Practical DataOps with COG Optimization and Great Expectations for National-Scale Agriculture.

PEERANAT PRASONGSUK

Talk11:30 @ Room2

Kumoy: Turn your QGIS Maps into Cloud-Native

Talk11:30 @ Room5

CDSE: Europe's Sovereign Infrastructure for Open Earth Observation

Klemen Lovenjak

Talk13:00 @ Room3

Reusable Geospatial Application Design for the Global South with MapLibre, STAC, and TiTiler

Talk13:00 @ Room4

Anatomy of a file

Talk13:00 @ Room5

Idle-Aware Geo-Processing Scheduler: Auto-Scaling Workers for Cloud-Native Geospatial Processing

Natpakal Maneerat

13:05 @ Phoenix Hall

Auspatious: A Cloud Native Geospatial Consultancy

Talk14:00 @ Dahlia1

Scaling Drone Imagery Processing: A Cloud-Native Approach with OpenDroneMap and Cloud

Talk14:00 @ Dahlia2

Modernizing Earth Observation Access: The GEODES Shift to Open Source and Cloud-Optimized Architectures

Hugo Fournier; Benjamin HUSSON

Talk14:00 @ Room4

State of STAC: From Specification to Infrastructure

Talk14:00 @ Room5

Running pygeoapi Cloud Native at Scale

Benjamin Webb; Colton Loftus

Talk14:30 @ Room1

Serverless Watershed Extraction: Benchmarking Zarr vs COG for Large-Scale Flow Direction Data

Shinsuke Nakamori

Talk14:30 @ Room4

Building Modern GIS Applications on Cloud Native Infrastructure

Siriwat Suttipanyo

Talk15:00 @ Room1

Geoconnex: Standardizing Water Data in the United States through a Unified Graph Database

Benjamin Webb; Colton Loftus

Talk15:00 @ Room5

Elevating Geospatial Cloud-Native Platforms : End-to-End Observability with Geospatial Observation Stack

Worrathep Somboonrungrod

Servers, OGC APIs & Catalogs

GeoServer 3 lands this year; STAC becomes the catalog lingua franca

Sep 1 (Day 1)

Keynote10:00 @ Phoenix Hall

How Our Community Was Born — Looking Back on More Than 20 Years of History

Toru Mori; Venkatesh Raghavan; Markus Neteler

Talk13:00 @ Ran2

The state of MapLibre: ecosystem update

Talk13:00 @ Room1

OGC APIs with GeoServer 3: implementation, avaialbility and next steps

Project Update (GeoNode-k8s)

Marcel Wallschläger

Talk13:30 @ Room1

pycsw project status

Tom Kralidis; Angelos Tzotsos

Making Urban Data Explorable: 3D, GeoServer, and OSS

Fukushima Shotaro

Talk16:00 @ Room5

New OGC API Plugins on the Block

Joana Simoes; Ricardo Garcia Silva; Kateryna Konieva

Talk16:30 @ Ran2

Lessons from Running GeoServer at Scale

Talk17:00 @ Room1

pygeoapi project status

Tom Kralidis; Angelos Tzotsos; Joana Simoes

Talk17:00 @ Room3

GeoNetwork 5: reimagining the Spatial Data Catalog for the future

Antonio Cerciello; Jody Garnett

Talk17:30 @ Ran1

The State of OGC SensorThings API

Talk17:30 @ Room6

State of GeoNode

Stefano Bovio; Mattia Giupponi

Sep 2 (Day 2)

Talk11:00 @ Room2

Standardizing Geospatial Time Series Access with OGC API EDR and RDF Linked Data Standards

Benjamin Webb; Colton Loftus

Talk11:00 @ Room3

GeoServer 3 tour

Jody Garnett; Ian Turton

Talk11:00 @ Room4

Geospatial Data Gateway : Composing Spatial Features Across Databases and APIs

Athitaya Phankhan

11:25 @ Phoenix Hall

How GeoSolutions supports GeoServer, GeoNode and MapStore

Andrea Aime; Simone Giannecchini

Talk13:00 @ Room1

Mastering Security with GeoServer, GeoFence, and OpenID

Academic13:00 @ Cosmos1

Extending GeoNode as a Foundation for Research Data Management Infrastructures in Agricultural Research

Marcel Wallschläger; Igo Silva de Almeida

Talk13:30 @ Room4

GeoSDC: A Spatial Data Infrastructure to support geological risk management in Santa Catarina State, Brazil

Carlos Eduardo Mota; Mauricio Marino; Matheus Klein Flach; Tiago Antonelli

Talk14:00 @ Dahlia2

TrustChain: Implementing the OGC Identity–Provenance–Trust Framework as an Open-Source Geospatial Pipeline

Pajarinee Songthammarat

GeoNetwork Update

Jody Garnett; Antonio Cerciello

Talk14:30 @ Phoenix Hall

Citizen-Driven War Memory Mapping: Enabling Non-Experts to Build Geospatial Archives with Re:Earth CMS and Visualizer

GeoServer Update

Jody Garnett; Ian Turton

Talk16:00 @ Ran1

Metadata in the time of robots

Antonio Cerciello; Joana Simoes

Academic16:00 @ Cosmos2

Geographic Visualization of the Kaii-Yokai Folklore Database Using Open-Source GIS and NLP

Kosuke Shimizu; Hiroki Ichikura

Talk16:30 @ Dahlia2

Apache SIS for integrated metadata, referencing and grid coverage services

Martin Desruisseaux

Talk16:30 @ Room4

Vector tiles and GeoServer: dynamic vector tiles server, XYZ services, and base maps

Sep 3 (Day 3)

Talk11:00 @ Dahlia2

Operating Maritime AIS at Enterprise Scale with GeoServer

Andrea Aime; Nuno Oliveira

Talk11:00 @ Ran2

Smarter Geospatial Management: A Collaborative Web Client for National Spatial Data

Henrik Gulliksen Schüller; Anders Eirik Hynne Haugen

Talk11:30 @ Ran1

The Paradox of Convenience: Decoding the Hidden Risks of OGC API and Architecting for Sustainable Control

Nuttawoot Rungsirirak

Talk11:30 @ Room4

Extending Reearth CMS with API-First Design and Developer-Friendly Data Workflows

Maher Alhamoui; Yasser Kamel

Talk13:00 @ Ran2

From OpenLayers Legacy to GIFramework: Modernizing GeoSampa’s Web Mapping Interface

Carolina Bracco Delgado de Aguilar; Andre Santana Meireles

Talk13:00 @ Room2

Best Practises for Consuming OGC API Data

Joana Simoes; Antonio Cerciello

Talk13:30 @ Dahlia2

GeoNode: Use Cases & Custom Applications

Talk13:30 @ Room2

Waystones: Bridging the Deployment Gap for Authoritative OGC API Services

Henrik Gulliksen Schüller

Talk14:30 @ Dahlia2

Supporting precision farming with GeoServer: past experiences and way forward

Andrea Aime; Simone Giannecchini

Talk14:30 @ Ran2

Shifting from a monolithic to a scalable SDI architecture: is it worth it?

Antonio Cerciello; Joana Simoes

Talk14:30 @ Room5

Rethinking Feature Data Services: A Composable Architecture for Geospatial APIs

Siriya Saenkhom-or

Talk15:00 @ Room4

Building National-Scale WebGIS Using Open Source Geospatial Pipelines

Spatial Databases

PostGIS as the bedrock; DuckDB Spatial & SedonaDB rising for analytics

Sep 1 (Day 1)

Talk17:30 @ Room1

Geospatial ES|QL in Elasticsearch

Sep 2 (Day 2)

Academic13:00 @ Cosmos2

Global contributors, local maps: the story of OpenStreetMap in a small town

Talk13:30 @ Dahlia2

Designing a Scalable Open-Source Workflow for Water Network Field Validation: Lessons from Costa Rica

From Spatial Database to Public Accessibility Viewer: Open-Source Geospatial Support for Inclusive Mobility Planning in Slovenia

Talk14:00 @ Himawari

Operationalizing Impact-Based Flood Forecasting Using Open Geospatial Pipelines in Resource-Limited Contexts

Feye Andal; FRITZ DARIEL ANDAL

Talk17:00 @ Himawari

From Map Layers to Knowledge Models: Extending Open GIS

Sep 3 (Day 3)

Talk11:00 @ Room3

Mapping for Municipal Revenue: Geospatial Upgrades to Local Governments Revenue Systems in Zanzibar

Mohammed ZAHRAN

11:30 @ Phoenix Hall

pipGIS: Cloud‑native Web GIS Platform for Municipal Workflows

Talk14:00 @ Ran2

WoSIS: Global soil information service powered by open source tools.

Talk15:00 @ Room3

Why Nominatim Can't Find Hiroshima Peace Memorial Museum - and How to Fix It

Core Libraries

GDAL / GEOS / PROJ — the quiet foundation everything stands on

Sep 1 (Day 1)

Talk16:00 @ Room6

Building the GDAL Sponsorship Program

Sep 2 (Day 2)

GeoTools Update

Jody Garnett; Ian Turton

ImageN for GeoSpatial

Jody Garnett; Ian Turton

Talk16:30 @ Room2

Between coffee farmers and an EU portal: When is a polygon actually valid?

Christoph Friedrich

OpenStreetMap & Open Data

Community mapping, open addresses, geocoding

Sep 1 (Day 1)

Ten Years of PoliMappers: Lessons from a Student-Led Open Mapping Community

Federica Gaspari

Mapping What's Hidden: YouthMappers and Urban Drainage Completeness for Flood and Dengue Risk in OSM

Talk14:00 @ Room3

The Human Lens in a Machine-Mapped World

Edoardo Neerhut; Christopher Beddow

Sep 2 (Day 2)

Talk13:00 @ Room3

Rust for Geospatial ETL: High-Throughput Conversion of Japan's Land Parcel Data

Keita Kobayashi

Academic13:30 @ Cosmos2

Between Sacred Tradition and Urban Form: An OpenStreetMap-Based Analysis of Church Orientation Patterns in Milan

Hinako Terado; Taichi Furuhashi

Talk14:00 @ Room4

Using Building Exposure Taxonomies in HOT Workflows

Sam Woodcock; Doren Calliku

Academic14:00 @ Cosmos2

Spatiotemporal Analysis of OpenStreetMap Editing Activities in Japan Using the OSMCha

Talk14:30 @ Room4

The Power of Local Connections for Social Impact in a Technocratic World: Experiences from HOT

Leen D'hondt; Honey Fombuena

Academic16:30 @ Cosmos1

Multivariate Spatio-Temporal Modeling for Regional GIS Data: A Statistical Framework for Analyzing Multidimensional Spatial Interactions

Talk17:30 @ Room2

Multistore: An S3-compliant data distribution API

Sep 3 (Day 3)

Talk11:00 @ Himawari

From Projects to Products: Operating Open Geospatial Data as a Regional Public Good in the Pacific

11:15 @ Phoenix Hall

From Japan Forestry Technology Association: miscellaneous notes on nationwide forest open data.

Hiroshi SASAKAWA

13:10 @ Phoenix Hall

AWS Open Data program

Talk14:30 @ Room3

Women in Geospatial: My Journey Using OpenStreetMap for Engineering Solutions

Community, Education & Governance

Growing local chapters, sustaining projects, teaching GIS

Sep 1 (Day 1)

Keynote10:45 @ Phoenix Hall

OSGeo - Looking Ahead

Toru Mori; Jeroen Ticheler; Joana Simoes; Marco Bernasocchi; Tom Kralidis

Talk13:00 @ Room4

Three years in two months - lessons learned in re-building a 120kloc GIS system from scratch as a 10x engineer.

Daniel Araújo Miranda

Talk13:30 @ Room5

SLA4GIS: international association of organizations providing technical support for OpenSource GIS

Michal Zugajewicz

The Map of Our History: The Journey of OSGeo Brazil

Narcélio de Sá

Talk14:30 @ Room1

OSGeo and OGC MoU update

Tom Kralidis; Angelos Tzotsos

Talk14:30 @ Room5

The Pacific Geospatial Women Network

Jacqueline Singh

Maintaining a small research tool: Experiences from the R package seg

Women in Open Source Volunteering: From Starting Out to Making a Real Difference

Dibikshya Shrestha

Lessons from the OS Grave: Learning from the collapse of a tech-for-good open source program

MAPME Initiative: Open Geospatial Ressources for Development Impact

Jin Igarashi; Alison Lenaerts

16:30 @ Phoenix Hall

Valuable Data, Open Tools: GeoTechnologies and the Future with FOSS4G

Sep 2 (Day 2)

Talk11:00 @ Dahlia2

Bringing Old Maps & Illustrated Maps to the Web: 10 Years of Maplat and Turning Misalignment into Innovation

Talk11:30 @ Room3

Project Support at OSGeo

Jody Garnett; Ian Turton

Talk12:00 @ Himawari

Poster15:30 @ Phoenix Hall Lobby

High School Student Poster Presentation

Talk16:00 @ Ran2

Sustaining Open Source: Real models, Real lessons

Jeroen Ticheler; Ana Belgun

Talk17:00 @ Phoenix Hall

Mapping Peace: A GIS-Based Storytelling Platform for Global Peace Education from Hiroshima

Hiroshima Funairi High School

Talk17:30 @ Phoenix Hall

High School Students' Journey with Re:Earth: Initiatives for Peace and Education

Michi Okada; masahiro torii

Sep 3 (Day 3)

Keynote09:30 @ Phoenix Hall

Sustaining Open Source: What We Can Learn from the Cooperative Model

Hal Seki; Lander Jimenez-ocio; Ela Kagel

13:15 @ Phoenix Hall

Introduction to Our Company and Our Booth (Asia Air Survey)

Talk13:30 @ Himawari

Global Open Mapping Gurus: Leveling Up the Future of Open Mapping!

Mikko Tamura; Honey Fombuena; Kshitij Raj Sharma

14:15 @ Phoenix Hall

Big Company Habits Meet Open Source Reality: Lessons from Five Months at GeoCat

Patrícia Iribarrem

Keynote16:30 @ Phoenix Hall

"What the Field Needs — Technology, Capacity, and People in the Age of Digital Public Goods"

Rei Kasai; Yuko Yokoi; Chisa Mikami

Application Domains

Environment, disaster, transport, urban, peace & heritage, agriculture, health

All themes (154)Environment & Climate (77)Disaster & Resilience (39)Transport & Mobility (35)Urban & Smart City (35)Peace, Memory & Heritage (32)Agriculture & Food (15)Health (8)

Sep 1 (Day 1)

Keynote10:00 @ Phoenix Hall

How Our Community Was Born — Looking Back on More Than 20 Years of History

Toru Mori; Venkatesh Raghavan; Markus Neteler

Talk13:00 @ Room3

Explore open-source tools to create digital urban models for MapStore

Lorenzo Natali; Tobia Di Pisa; Stefano Bovio

Talk13:00 @ Room6

A Practical Workflow for Reusing Proprietary Stormwater Model Data in Open-Source GIS Using CSV and SWMM Formats with Giswater

Albert Bofill; Yoshihiro Shibuo

Academic13:00 @ Cosmos1

From CityGML to Game Engine: A Reproducible Open-Source Pipeline for Interactive 3D Urban Environments Using PLATEAU, Blender, and Godot

Academic13:00 @ Cosmos2

Comparative analysis of route and health care facilities for the emergency patients of Pune and Bengaluru

Adwait Priyadarshan

Mapping What's Hidden: YouthMappers and Urban Drainage Completeness for Flood and Dengue Risk in OSM

Talk13:30 @ Room2

Japan Geospatial Times: Exploring the History and Use Cases of Geospatial Technologies in Japan

Talk13:30 @ Room6

Drawing the Lines: Visualizing the role of climate change and urbanization shaping human-bear interactions in Japan

bonny p mcclain

Academic13:30 @ Cosmos1

Scaling Open 3D City Models: Implementation and Validation of an AI-driven Automated Generation Tool “AI City Model Maker beta version”

Mayumi Mizobuchi

Academic13:30 @ Cosmos2

Linking provider catchment and SaTScan risk clusters for evidence-based public health nursing in Japan

What is the optimal resolution of a DGGS for forest cover mapping and monitoring?

Talk14:00 @ Phoenix Hall

pgRouting project status

Making Urban Data Explorable: 3D, GeoServer, and OSS

Fukushima Shotaro

Talk14:00 @ Room1

GeoServer 3 complete - final update

Andrea Aime; Jody Garnett

Academic14:00 @ Cosmos1

Development of an open-source analytical Digital Twin framework for environmental modelling and management

Luke Parkinson; Matthew Wilson

Academic14:00 @ Cosmos2

Using WRF-UCM as Boundary Forcing for Microscale Models in Data-Scarce Urban Environments

Jaroslav Hofierka; Tomáš Fedor

The Map of Our History: The Journey of OSGeo Brazil

Narcélio de Sá

Valinor: Valhalla Meets Rust

Amazon Location Service Plugin for QGIS: Basemaps, Geocoding, and Routing

Yasunori Kirimoto

Web-Based High-Performance Traffic Simulator: Advancing an Integrated Interaction Platform for Urban Planning Decision-Making

Cheun-gill Park; KIMDEOKHYEON

Talk14:30 @ Room3

Ferrostar: Tackling Navigation Challenges Through Collaboration

Academic14:30 @ Cosmos1

An Open Geospatial Framework for Proximity-Based Community Planning: Integrating Mobility-Based Community Detection, Multimodal Accessibility, and Facility Allocation Optimization

Academic14:30 @ Cosmos2

MUSUBOU-AR: An Open-Source Geospatial AR Framework for Integrating Public GIS Data, Field Authoring, and Disaster Walking Tours

Daisuke Yoshida

Talk15:30 @ Ran2

GeoServer 3 tour

Talk15:30 @ Room1

landlensdb: A Python Package for Managing Proximity Sensing Imagery

Iosefa Percival; Narumasa Tsutsumida

Talk15:30 @ Room6

EIA Scoping Tool and Collaborative Authoring and Review System

Academic15:30 @ Cosmos2

An open-source GeoAI workflow for mapping historic agricultural terraces

Filippo Brandolini

Talk16:00 @ Ran1

DigiAgriApp, 2026 updates

Talk16:00 @ Room1

Detecting Rooftop Solar Panels with Deep Learning, using Open Remote Sensing Data and OpenStreetMap

Danielle; Gefei Kong

Academic16:00 @ Cosmos2

Examining the Relationship Between Tatara Iron Production and Grassland Distribution in Western Japan: An Open Geospatial Approach to Historical Landscape Analysis

Nobusuke Iwasaki; Ayaka Onohara; Takatora Bito

Talk16:30 @ Room3

OGC/ISO standards for CRS: a look back and a look ahead

Martin Desruisseaux

Talk16:30 @ Room4

State of DGGAL (Discrete Global Grid Abstraction Library)

Jerome St-Louis

Academic16:30 @ Cosmos1

How Does Walkability for Elderly People Differ between Hilly and Flat Urban Areas? A Case Study of Shin-Yurigaoka Station and Nagareyama-Otakanomori Station

Academic16:30 @ Cosmos2

GIS-Based Walking Map Isochrones in Measuring Transit Catchment: A Spatial Approach to Urban Accessibility

Talk17:00 @ Room5

Not on Your Google Maps: The Map Is Not the Territory

bonny p mcclain

Academic17:00 @ Cosmos1

Capturing park-use behavior patterns using volunteered street view imagery: Does the likelihood increase with the volume of contributions?

Academic17:00 @ Cosmos2

Application of SUMO in Simulation of Optimized Traffic Light Timing derived using Artificial Neural Network and GIS

Nabilah Naharudin

Talk17:30 @ Room3

Pacific Ocean Portal 2.0

Academic17:30 @ Cosmos2

Tool Selection for Detailed Accessibility Analysis Using GTFS Data: The Case of the Yamagata Urban Area

Sep 2 (Day 2)

Keynote09:30 @ Phoenix Hall

Memory, Technology, and Peace — Rebooting Memories and Geospatial Technology

Hidenori Watanve

Talk11:00 @ Dahlia1

Title: Natural Language Querying of STAC Catalogs Using LLMs for Geospatial Visualization

Pakpoom Najanthom

Talk11:00 @ Dahlia2

Bringing Old Maps & Illustrated Maps to the Web: 10 Years of Maplat and Turning Misalignment into Innovation

Talk11:00 @ Ran1

What Could Possibly Go Wrong? A Practical Security Review of Popular Open-Source GIS Libraries

Jared Marcotte; Robert Cheetham

Talk11:00 @ Ran2

Rendering National Climate Data in the Browser: WebGL Custom Shaders with MapLibre GL JS

Talk11:00 @ Room2

Standardizing Geospatial Time Series Access with OGC API EDR and RDF Linked Data Standards

Benjamin Webb; Colton Loftus

Academic11:00 @ Cosmos1

Detecting Stable Urban Heat Island Signals in Satellite Land Surface Temperature Time Series: A Case Study of Zagreb, Croatia

Sanja Šamanović

11:20 @ Phoenix Hall

From Satellite Data to Actionable Geospatial Applications: Building ArkEdge Insights with Open Source Technologies

Talk11:30 @ Room2

Every building on Earth

Danijel Schorlemmer

Talk11:30 @ Room4

Meeting Cyber Resilience Act September Deadline

Jody Garnett; Jeroen Ticheler

Talk11:30 @ Cosmos1

End-to-End Deep Learning Analysis Pipeline for Early-Season Crop Mapping using Sentinel Data and Continuous Wavelet Transforms

Sarawut Ninsawat; Thantham Khamyai; sittichai choosumrong

Academic11:30 @ Cosmos2

A Comprehensive Disaster Risk Analysis Model with GeoAI

Muhammed Oguzhan Mete

Talk13:00 @ Phoenix Hall

Developing a QGIS Plugin for Urban Structure Evaluation

Satoshi Kitashima

Talk13:00 @ Ran2

Pedestrian Trajectory Mapping with MapLibre and OpenCV from Videos

Talk13:00 @ Room4

Open Standards and Tools to Accelerate Global Crisis Response

Academic13:00 @ Cosmos1

Extending GeoNode as a Foundation for Research Data Management Infrastructures in Agricultural Research

Marcel Wallschläger; Igo Silva de Almeida

Academic13:00 @ Cosmos2

Global contributors, local maps: the story of OpenStreetMap in a small town

A Map-First Conference Guide App with MapLibre for FOSS4G Hiroshima 2026

Haruki Inoue; Ryosuke Aoki

Tokyo Last Train Map: Visualizing "When You Can't Get Home" with Open Data from 17 Rail Operators

Talk13:30 @ Phoenix Hall

Open-sourcing the ivory tower, or how to remove barriers between scientific modelling and communities through open-source software

Matthew Wilson; Maria Cecilia Vega Corredor

Talk13:30 @ Himawari

Detecting Quarry Pond Remnants on a Japanese Island Heritage Site Using Sentinel-2 Imagery and Open-Source Remote Sensing Tools

Talk13:30 @ Dahlia2

Designing a Scalable Open-Source Workflow for Water Network Field Validation: Lessons from Costa Rica

From Spatial Database to Public Accessibility Viewer: Open-Source Geospatial Support for Inclusive Mobility Planning in Slovenia

Talk13:30 @ Room2

Cognitive Motion Design Redefining Interaction in map applications : Use case for Smart Agriculture

Talk13:30 @ Room4

GeoSDC: A Spatial Data Infrastructure to support geological risk management in Santa Catarina State, Brazil

Carlos Eduardo Mota; Mauricio Marino; Matheus Klein Flach; Tiago Antonelli

Talk13:30 @ Room5

From GIS Visualization Needs to 3D City Models: The Current Trajectory of Project PLATEAU in a Global Context

Haruka Yasuda; Eukarya Inc.; Misaki Baba; Beatrice Charles Mkumbo; Sakurako Tsun

Academic13:30 @ Cosmos1

Grid4Earth: An open-source Python ecosystem for geospatial data integration on the ellipsoidal HEALPix DGGS

Tina Odaka; Alexander Kmoch

Academic13:30 @ Cosmos2

Between Sacred Tradition and Urban Form: An OpenStreetMap-Based Analysis of Church Orientation Patterns in Milan

Hinako Terado; Taichi Furuhashi

Introducing the Climate Action Navigator

Intent-Centric Wildfire Monitoring: LLM and VLM Orchestration for Everyone

Improving Water Data Access with Cloud Native Geospatial Formats

Talk14:00 @ Phoenix Hall

Open Vector Tiles for the Actual Vegetation Map 2024 and Launching the Satellite-based Vegetation map 2030

Shingo YAMASHITA

Talk14:00 @ Himawari

Operationalizing Impact-Based Flood Forecasting Using Open Geospatial Pipelines in Resource-Limited Contexts

Feye Andal; FRITZ DARIEL ANDAL

Talk14:00 @ Room4

Using Building Exposure Taxonomies in HOT Workflows

Sam Woodcock; Doren Calliku

Academic14:00 @ Cosmos1

Rectangular vs Hexagonal Grid Tessellation for Spatial Analysis of Invasive Species: A Case Study of Aromia bungii in Saitama, Japan.

Narumasa Tsutsumida; Irhamillah

Academic14:00 @ Cosmos2

Spatiotemporal Analysis of OpenStreetMap Editing Activities in Japan Using the OSMCha

Talk14:30 @ Phoenix Hall

Citizen-Driven War Memory Mapping: Enabling Non-Experts to Build Geospatial Archives with Re:Earth CMS and Visualizer

Talk14:30 @ Room1

Mapping the Distance to History: Reading Barefoot Gen on a Map with Open Geospatial Tools

Talk14:30 @ Room2

Beyond the Pixels: A PM’s Perspective on "Data Transition" – Transforming Satellite Imagery into Actionable Disaster Solutions

Raksina Maneechan

Talk14:30 @ Room3

Accelerating Climate Action: Building GIS Dashboards with openEO and titiler

Talk14:30 @ Room5

Mapping Fiber Without Operator Data: Evidence-Based Connectivity Indicators

CRISTIANE HONORA MILLAN

Talk14:30 @ Room6

Bridging LLM and GIS via Model Context Protocol for Conversational Flood Data Analysis

Narathorn Noophum

Academic14:30 @ Cosmos1

FloodA5: An Open-Source Framework for Flood Modelling on an Equal-Area Pentagonal DGGS

Academic14:30 @ Cosmos2

Open-Source Spatiotemporal Traffic Congestion Analysis at City Scale: A Reproducible Python Pipeline Combining PySAL, OSMnx, and Multilevel Modeling

Firman Hadi; Fauzan Abdullah

Talk15:30 @ Phoenix Hall

A New Approach to MapLibre Style Editing

Talk15:30 @ Room3

Using AI and Digital Twin in Solving One of the World’s Most Plastic Polluting River

Rudolph Peralta

Academic15:30 @ Cosmos1

From Raw ADS-B Signals to Reproducible Flight Trajectories: An Open Geospatial Workflow for Narita Airport

Academic15:30 @ Cosmos2

Shared Landscapes, Shared Futures: Visual Landscape Evolution Modelling for Community Stewardship

Vinuri Piyathilake

Talk16:00 @ Phoenix Hall

Impactful Data: International cooperation to increase the value of open-source data & software including in hazard scenarios

Jesse Whitehead; Fiu Etike Penjueli

Talk16:00 @ Dahlia1

Maplibreum: like Folium - but based on Maplibre

Kauê de Moraes Vestena

Talk16:00 @ Dahlia2

Mapping invasive canopy-smothering vines in the tropical Pacific using SAR and open-source geospatial tools

Iosefa Percival

Talk16:00 @ Room1

Efficient pixel-scale upstream covariate computation for environmental machine learning

Kajetan Chrapkiewicz

Talk16:00 @ Room2

Noodles.gl: A visual programming language for animation, geospatial and the web

Talk16:00 @ Room3

The M4S Project: Scaling Seagrass Conservation in Timor-Leste through Participatory FOSS Workflows

Honey Fombuena; Dinar Adiatma

Talk16:00 @ Room5

Estimation of Soil Organic Carbon and Total Nitrogen in Thailand's Rubber Plantations Using Multispectral Imagery and Machine Learning Algorithms

Pramet Kaewmesri

Talk16:00 @ Room6

Current status and challenges of FOSS4G's Japanese localization

Academic16:00 @ Cosmos1

A case use of FOSS4G to promote the Mining Industry: The P3M Platform of the Geological Survey of Brazil.

Carlos Eduardo Mota

Talk16:30 @ Dahlia1

Eyes-Free Navigation: OSM-Powered Spatial Audio and AI Navigation for Visually Impaired Users.

Talk16:30 @ Room2

Between coffee farmers and an EU portal: When is a polygon actually valid?

Christoph Friedrich

Academic16:30 @ Cosmos1

Multivariate Spatio-Temporal Modeling for Regional GIS Data: A Statistical Framework for Analyzing Multidimensional Spatial Interactions

Talk17:00 @ Phoenix Hall

Mapping Peace: A GIS-Based Storytelling Platform for Global Peace Education from Hiroshima

Hiroshima Funairi High School

Talk17:00 @ Himawari

From Map Layers to Knowledge Models: Extending Open GIS

Talk17:00 @ Dahlia2

Japanese Map Culture: Inheritance through FOSS4G Technology

Ayumi Shibamoto

Talk17:00 @ Room4

A cultural database for down to earth users: open source maps, media, and design in Indigenous Australia

Academic17:00 @ Cosmos1

Making OGC IndoorGML 2.0 Web-Ready: API – IndoorFeatures with IndoorJSON

Dong Gwon; Seongmin Choi

Talk17:30 @ Phoenix Hall

High School Students' Journey with Re:Earth: Initiatives for Peace and Education

Michi Okada; masahiro torii

Talk17:30 @ Room3

Re:Earth: Empowering Non-Experts with Open Source WebGIS — Case Studies from Educational Settings

Talk17:30 @ Room4

Development of a Wildfire Fireline Visualization Pilot System and Its Enhancement Plan Using Open-Source GIS Technologies

Juhyeon Gim; YOUNGWOOK YIM; dawoon Kim

Sep 3 (Day 3)

Talk11:00 @ Dahlia1

Participatory Renewable Energy Zoning Using QGIS and Open Data: A Case Study in Urahoro, Hokkaido

Talk11:00 @ Dahlia2

Operating Maritime AIS at Enterprise Scale with GeoServer

Andrea Aime; Nuno Oliveira

Talk11:00 @ Ran1

Architecture design and API development for geospatial backend in Large-Scale forest and land monitoring platforms

Thana Wannasang

Talk11:00 @ Room4

ESGF Next Generation

Talk11:00 @ Room5

From Chaos to Confidence: Practical DataOps with COG Optimization and Great Expectations for National-Scale Agriculture.

PEERANAT PRASONGSUK

Academic11:00 @ Cosmos1

Comparing uncertainty quantification methods for Random Forest-based digital soil mapping

11:05 @ Phoenix Hall

From Open Source to Real-World Impact: Building Sustainable Geospatial Solutions with Maplat

11:10 @ Phoenix Hall

Applied Technology Co., Ltd.: An Innovation Company Transforming Challenges into Value

Kunihiko Hirosawa

11:15 @ Phoenix Hall

From Japan Forestry Technology Association: miscellaneous notes on nationwide forest open data.

Hiroshi SASAKAWA

11:30 @ Phoenix Hall

pipGIS: Cloud‑native Web GIS Platform for Municipal Workflows

Talk11:30 @ Ran1

The Paradox of Convenience: Decoding the Hidden Risks of OGC API and Architecting for Sustainable Control

Nuttawoot Rungsirirak

Talk11:30 @ Ran2

From Data to Insights: Decision-Support tool application with the Goa Agriculture Department

Academic11:30 @ Cosmos1

Synergistic use of PRISMA hyperspectral data and a random forest algorithm to map soil nutrients in sugarcane fields in Northeast Thailand

Jaturong Som-ard

Academic11:30 @ Cosmos2

Aitchison-Loss Training with Geospatial Embeddings Sharpens Compositional Land-Cover Maps

Narumasa Tsutsumida; Ayato Kanno

Talk13:00 @ Ran1

Current GIS Applications in Hokkaido Agriculture and Hokuren's FOSS4G Initiatives with QGIS

Talk13:00 @ Room1

From Legacy Data to National Standards: Preparing a Brazilian City for Federal Interoperability with FOSS4G

Narcélio de Sá

Talk13:00 @ Room3

Reusable Geospatial Application Design for the Global South with MapLibre, STAC, and TiTiler

Academic13:00 @ Cosmos1

Data4Land - reproducible open-source tool for enrichment of land-use/land-cover rasters and connectivity maps.

Academic13:00 @ Cosmos2

Learning with Spaceborne LiDAR for Enhancement of Bare-Earth Digital Elevation Models from Global Data

13:15 @ Phoenix Hall

Introduction to Our Company and Our Booth (Asia Air Survey)

Talk13:30 @ Dahlia1

Developing an ocean renewable energy platform with FOSS4G

Luis Caezar Ian Panganiban; Charmyne Mamador

Talk13:30 @ Ran2

Inside the Engine of “KnoWaterleak”: Real-Time Search and On-Demand Vector Tiles for Large Pipeline Data

Kenji Takase; Eugene Kim

Talk13:30 @ Room1

Green Infrastructure Baseline using Open-Source Geospatial Data for Dammam, Saudi Arabia

Sultan Hasan Alsultan

Talk13:30 @ Room3

Beyond the Map: Designing GIS to Help People Understand the Places They Live

RED (XU CONG); Waqas Zulfiqar

Talk13:30 @ Room4

Do formats exist? Towards a unified foundation for data tooling

Talk13:30 @ Room5

Democratizing Urban Development: The Potential of The Urban Digital Twin Platform "Machi Space®"

Hirofumi Hayashi; Kunihiko Hirosawa; Nguyen Van Thien

Academic13:30 @ Cosmos1

Evaluating spectral diversity approaches for tree species diversity mapping in hemi-boreal forests using Sentinel-2 and biodivMapR

Academic13:30 @ Cosmos2

Eliminating Temporal Misalignment in SAR Flood Detection with a ConvLSTM-Siamese Approach Using Sentinel-1 Time Series

中嶋達也; Narumasa Tsutsumida

14:00 @ Phoenix Hall

iRIC: An Open-Source Platform for River and Flood Simulation

Talk14:00 @ Ran1

Rekichizu: Designing Modern-Style Historical Maps to Preserve Cultural Memory

Hajime Kato; Asanobu Kitamoto

Talk14:00 @ Room2

Eurostat vs OSM vs Census: Choosing Open Mobility Data for Urban Function Maps

Marija Ercegovac

Talk14:00 @ Room3

Offline-First Geospatial Architecture for Tree-Level Analysis Using FOSS4G Pipelines

Academic14:00 @ Cosmos1

Mapping Nearshore Cladophora in Lake Ontario: An Automated Open-Source Sentinel-2 Workflow and Experimental Index Derivation

TonyLiu; Shichao Wang

Academic14:00 @ Cosmos2

A Pipeline for Low-Cost Wide-Area 3D Mapping Using LiDAR-Equipped Mobile Devices and Open Data

Talk14:30 @ Himawari

From 6 People Classroom Meetup to 100 people Regional Conference: 16 Years Building an Open FOSS4G Community in Hokkaido

Yasuto FURUKAWA

Talk14:30 @ Dahlia2

Supporting precision farming with GeoServer: past experiences and way forward

Andrea Aime; Simone Giannecchini

Talk14:30 @ Room1

Serverless Watershed Extraction: Benchmarking Zarr vs COG for Large-Scale Flow Direction Data

Shinsuke Nakamori

Talk14:30 @ Room3

Women in Geospatial: My Journey Using OpenStreetMap for Engineering Solutions

Talk14:30 @ Room5

Rethinking Feature Data Services: A Composable Architecture for Geospatial APIs

Siriya Saenkhom-or

Academic14:30 @ Cosmos1

Feasibility to detect rapid change and disappearance of seagrass: Lessons from nearly 80 years of vegetation change in the Ako, Seto Inland Sea, Japan

Takehisa Yamakita

Academic14:30 @ Cosmos2

Integrating Machine Learning with Open-Source GIS for Reproducible High-Resolution Terrain Classification and Hazard Mapping from UAV LiDAR Data

Nikola Kranjčić

Talk15:00 @ Ran1

Caring for a Living Park: An Open-Source Geospatial System Inspired by Field Experience (Cerro Kavaju, Paraguay)

Atahualpa Ayala Gómez

Talk15:00 @ Room1

Geoconnex: Standardizing Water Data in the United States through a Unified Graph Database

Benjamin Webb; Colton Loftus

Talk15:00 @ Room2

Digital Transformation in Railway Infrastructure

Nguyen Van Thien; Hirofumi Hayashi; Tatsuya Naka; Yayoi Oda; Tomohiro SHIMIZU

Talk15:00 @ Room3

Why Nominatim Can't Find Hiroshima Peace Memorial Museum - and How to Fix It

Academic15:00 @ Cosmos1

Regional 10-m Mapping of Forest Foliage Height Diversity in Hokkaido, Japan, Using GEDI and Foundation-Model Satellite Embeddings

Narumasa Tsutsumida; Tetsu Sasaki

Academic15:00 @ Cosmos2

Machine Learning for Terrain Traversability Mapping: Accuracy, Uncertainty, and Data Limitations

Marek Wyszyński; Krzysztof Pokonieczny

Application Domains

Environment & Climate

All themes (154)Environment & Climate (77)Disaster & Resilience (39)Transport & Mobility (35)Urban & Smart City (35)Peace, Memory & Heritage (32)Agriculture & Food (15)Health (8)

Sep 1 (Day 1)

Talk13:00 @ Room3

Explore open-source tools to create digital urban models for MapStore

Lorenzo Natali; Tobia Di Pisa; Stefano Bovio

Talk13:00 @ Room6

A Practical Workflow for Reusing Proprietary Stormwater Model Data in Open-Source GIS Using CSV and SWMM Formats with Giswater

Albert Bofill; Yoshihiro Shibuo

Academic13:00 @ Cosmos1

From CityGML to Game Engine: A Reproducible Open-Source Pipeline for Interactive 3D Urban Environments Using PLATEAU, Blender, and Godot

Academic13:00 @ Cosmos2

Comparative analysis of route and health care facilities for the emergency patients of Pune and Bengaluru

Adwait Priyadarshan

Mapping What's Hidden: YouthMappers and Urban Drainage Completeness for Flood and Dengue Risk in OSM

Talk13:30 @ Room6

Drawing the Lines: Visualizing the role of climate change and urbanization shaping human-bear interactions in Japan

bonny p mcclain

What is the optimal resolution of a DGGS for forest cover mapping and monitoring?

Academic14:00 @ Cosmos1

Development of an open-source analytical Digital Twin framework for environmental modelling and management

Luke Parkinson; Matthew Wilson

Academic14:00 @ Cosmos2

Using WRF-UCM as Boundary Forcing for Microscale Models in Data-Scarce Urban Environments

Jaroslav Hofierka; Tomáš Fedor

Web-Based High-Performance Traffic Simulator: Advancing an Integrated Interaction Platform for Urban Planning Decision-Making

Cheun-gill Park; KIMDEOKHYEON

Academic14:30 @ Cosmos2

MUSUBOU-AR: An Open-Source Geospatial AR Framework for Integrating Public GIS Data, Field Authoring, and Disaster Walking Tours

Daisuke Yoshida

Talk15:30 @ Room6

EIA Scoping Tool and Collaborative Authoring and Review System

Academic15:30 @ Cosmos2

An open-source GeoAI workflow for mapping historic agricultural terraces

Filippo Brandolini

Talk16:00 @ Room1

Detecting Rooftop Solar Panels with Deep Learning, using Open Remote Sensing Data and OpenStreetMap

Danielle; Gefei Kong

Academic16:00 @ Cosmos2

Examining the Relationship Between Tatara Iron Production and Grassland Distribution in Western Japan: An Open Geospatial Approach to Historical Landscape Analysis

Nobusuke Iwasaki; Ayaka Onohara; Takatora Bito

Academic16:30 @ Cosmos1

How Does Walkability for Elderly People Differ between Hilly and Flat Urban Areas? A Case Study of Shin-Yurigaoka Station and Nagareyama-Otakanomori Station

Talk17:00 @ Room5

Not on Your Google Maps: The Map Is Not the Territory

bonny p mcclain

Talk17:30 @ Room3

Pacific Ocean Portal 2.0

Sep 2 (Day 2)

Talk11:00 @ Ran2

Rendering National Climate Data in the Browser: WebGL Custom Shaders with MapLibre GL JS

Talk11:00 @ Room2

Standardizing Geospatial Time Series Access with OGC API EDR and RDF Linked Data Standards

Benjamin Webb; Colton Loftus

Academic11:00 @ Cosmos1

Detecting Stable Urban Heat Island Signals in Satellite Land Surface Temperature Time Series: A Case Study of Zagreb, Croatia

Sanja Šamanović

11:20 @ Phoenix Hall

From Satellite Data to Actionable Geospatial Applications: Building ArkEdge Insights with Open Source Technologies

Academic11:30 @ Cosmos2

A Comprehensive Disaster Risk Analysis Model with GeoAI

Muhammed Oguzhan Mete

Academic13:00 @ Cosmos1

Extending GeoNode as a Foundation for Research Data Management Infrastructures in Agricultural Research

Marcel Wallschläger; Igo Silva de Almeida

Talk13:30 @ Phoenix Hall

Open-sourcing the ivory tower, or how to remove barriers between scientific modelling and communities through open-source software

Matthew Wilson; Maria Cecilia Vega Corredor

Talk13:30 @ Dahlia2

Designing a Scalable Open-Source Workflow for Water Network Field Validation: Lessons from Costa Rica

Academic13:30 @ Cosmos1

Grid4Earth: An open-source Python ecosystem for geospatial data integration on the ellipsoidal HEALPix DGGS

Tina Odaka; Alexander Kmoch

Introducing the Climate Action Navigator

Improving Water Data Access with Cloud Native Geospatial Formats

Talk14:00 @ Phoenix Hall

Open Vector Tiles for the Actual Vegetation Map 2024 and Launching the Satellite-based Vegetation map 2030

Shingo YAMASHITA

Academic14:00 @ Cosmos1

Rectangular vs Hexagonal Grid Tessellation for Spatial Analysis of Invasive Species: A Case Study of Aromia bungii in Saitama, Japan.

Narumasa Tsutsumida; Irhamillah

Talk14:30 @ Room3

Accelerating Climate Action: Building GIS Dashboards with openEO and titiler

Academic14:30 @ Cosmos1

FloodA5: An Open-Source Framework for Flood Modelling on an Equal-Area Pentagonal DGGS

Academic14:30 @ Cosmos2

Open-Source Spatiotemporal Traffic Congestion Analysis at City Scale: A Reproducible Python Pipeline Combining PySAL, OSMnx, and Multilevel Modeling

Firman Hadi; Fauzan Abdullah

Talk15:30 @ Room3

Using AI and Digital Twin in Solving One of the World’s Most Plastic Polluting River

Rudolph Peralta

Academic15:30 @ Cosmos1

From Raw ADS-B Signals to Reproducible Flight Trajectories: An Open Geospatial Workflow for Narita Airport

Academic15:30 @ Cosmos2

Shared Landscapes, Shared Futures: Visual Landscape Evolution Modelling for Community Stewardship

Vinuri Piyathilake

Talk16:00 @ Dahlia1

Maplibreum: like Folium - but based on Maplibre

Kauê de Moraes Vestena

Talk16:00 @ Dahlia2

Mapping invasive canopy-smothering vines in the tropical Pacific using SAR and open-source geospatial tools

Iosefa Percival

Talk16:00 @ Room1

Efficient pixel-scale upstream covariate computation for environmental machine learning

Kajetan Chrapkiewicz

Talk16:00 @ Room2

Noodles.gl: A visual programming language for animation, geospatial and the web

Talk16:00 @ Room3

The M4S Project: Scaling Seagrass Conservation in Timor-Leste through Participatory FOSS Workflows

Honey Fombuena; Dinar Adiatma

Talk16:00 @ Room5

Estimation of Soil Organic Carbon and Total Nitrogen in Thailand's Rubber Plantations Using Multispectral Imagery and Machine Learning Algorithms

Pramet Kaewmesri

Academic16:00 @ Cosmos1

A case use of FOSS4G to promote the Mining Industry: The P3M Platform of the Geological Survey of Brazil.

Carlos Eduardo Mota

Academic16:30 @ Cosmos1

Multivariate Spatio-Temporal Modeling for Regional GIS Data: A Statistical Framework for Analyzing Multidimensional Spatial Interactions

Academic17:00 @ Cosmos1

Making OGC IndoorGML 2.0 Web-Ready: API – IndoorFeatures with IndoorJSON

Dong Gwon; Seongmin Choi

Sep 3 (Day 3)

Talk11:00 @ Dahlia1

Participatory Renewable Energy Zoning Using QGIS and Open Data: A Case Study in Urahoro, Hokkaido

Talk11:00 @ Ran1

Architecture design and API development for geospatial backend in Large-Scale forest and land monitoring platforms

Thana Wannasang

Talk11:00 @ Room4

ESGF Next Generation

Academic11:00 @ Cosmos1

Comparing uncertainty quantification methods for Random Forest-based digital soil mapping

11:10 @ Phoenix Hall

Applied Technology Co., Ltd.: An Innovation Company Transforming Challenges into Value

Kunihiko Hirosawa

11:15 @ Phoenix Hall

From Japan Forestry Technology Association: miscellaneous notes on nationwide forest open data.

Hiroshi SASAKAWA

Talk11:30 @ Ran2

From Data to Insights: Decision-Support tool application with the Goa Agriculture Department

Academic11:30 @ Cosmos1

Synergistic use of PRISMA hyperspectral data and a random forest algorithm to map soil nutrients in sugarcane fields in Northeast Thailand

Jaturong Som-ard

Academic11:30 @ Cosmos2

Aitchison-Loss Training with Geospatial Embeddings Sharpens Compositional Land-Cover Maps

Narumasa Tsutsumida; Ayato Kanno

Academic13:00 @ Cosmos1

Data4Land - reproducible open-source tool for enrichment of land-use/land-cover rasters and connectivity maps.

Academic13:00 @ Cosmos2

Learning with Spaceborne LiDAR for Enhancement of Bare-Earth Digital Elevation Models from Global Data

13:15 @ Phoenix Hall

Introduction to Our Company and Our Booth (Asia Air Survey)

Talk13:30 @ Dahlia1

Developing an ocean renewable energy platform with FOSS4G

Luis Caezar Ian Panganiban; Charmyne Mamador

Talk13:30 @ Ran2

Inside the Engine of “KnoWaterleak”: Real-Time Search and On-Demand Vector Tiles for Large Pipeline Data

Kenji Takase; Eugene Kim

Talk13:30 @ Room1

Green Infrastructure Baseline using Open-Source Geospatial Data for Dammam, Saudi Arabia

Sultan Hasan Alsultan

Talk13:30 @ Room3

Beyond the Map: Designing GIS to Help People Understand the Places They Live

RED (XU CONG); Waqas Zulfiqar

Talk13:30 @ Room4

Do formats exist? Towards a unified foundation for data tooling

Talk13:30 @ Room5

Democratizing Urban Development: The Potential of The Urban Digital Twin Platform "Machi Space®"

Hirofumi Hayashi; Kunihiko Hirosawa; Nguyen Van Thien

Academic13:30 @ Cosmos1

Evaluating spectral diversity approaches for tree species diversity mapping in hemi-boreal forests using Sentinel-2 and biodivMapR

Academic13:30 @ Cosmos2

Eliminating Temporal Misalignment in SAR Flood Detection with a ConvLSTM-Siamese Approach Using Sentinel-1 Time Series

中嶋達也; Narumasa Tsutsumida

14:00 @ Phoenix Hall

iRIC: An Open-Source Platform for River and Flood Simulation

Talk14:00 @ Room3

Offline-First Geospatial Architecture for Tree-Level Analysis Using FOSS4G Pipelines

Academic14:00 @ Cosmos1

Mapping Nearshore Cladophora in Lake Ontario: An Automated Open-Source Sentinel-2 Workflow and Experimental Index Derivation

TonyLiu; Shichao Wang

Talk14:30 @ Room1

Serverless Watershed Extraction: Benchmarking Zarr vs COG for Large-Scale Flow Direction Data

Shinsuke Nakamori

Talk14:30 @ Room3

Women in Geospatial: My Journey Using OpenStreetMap for Engineering Solutions

Academic14:30 @ Cosmos1

Feasibility to detect rapid change and disappearance of seagrass: Lessons from nearly 80 years of vegetation change in the Ako, Seto Inland Sea, Japan

Takehisa Yamakita

Academic14:30 @ Cosmos2

Integrating Machine Learning with Open-Source GIS for Reproducible High-Resolution Terrain Classification and Hazard Mapping from UAV LiDAR Data

Nikola Kranjčić

Talk15:00 @ Ran1

Caring for a Living Park: An Open-Source Geospatial System Inspired by Field Experience (Cerro Kavaju, Paraguay)

Atahualpa Ayala Gómez

Talk15:00 @ Room1

Geoconnex: Standardizing Water Data in the United States through a Unified Graph Database

Benjamin Webb; Colton Loftus

Academic15:00 @ Cosmos1

Regional 10-m Mapping of Forest Foliage Height Diversity in Hokkaido, Japan, Using GEDI and Foundation-Model Satellite Embeddings

Narumasa Tsutsumida; Tetsu Sasaki

Academic15:00 @ Cosmos2

Machine Learning for Terrain Traversability Mapping: Accuracy, Uncertainty, and Data Limitations

Marek Wyszyński; Krzysztof Pokonieczny

Application Domains

Disaster & Resilience

All themes (154)Environment & Climate (77)Disaster & Resilience (39)Transport & Mobility (35)Urban & Smart City (35)Peace, Memory & Heritage (32)Agriculture & Food (15)Health (8)

Sep 1 (Day 1)

Academic13:00 @ Cosmos2

Comparative analysis of route and health care facilities for the emergency patients of Pune and Bengaluru

Adwait Priyadarshan

Mapping What's Hidden: YouthMappers and Urban Drainage Completeness for Flood and Dengue Risk in OSM

Academic14:30 @ Cosmos2

MUSUBOU-AR: An Open-Source Geospatial AR Framework for Integrating Public GIS Data, Field Authoring, and Disaster Walking Tours

Daisuke Yoshida

Talk16:30 @ Room4

State of DGGAL (Discrete Global Grid Abstraction Library)

Jerome St-Louis

Talk17:30 @ Room3

Pacific Ocean Portal 2.0

Sep 2 (Day 2)

Keynote09:30 @ Phoenix Hall

Memory, Technology, and Peace — Rebooting Memories and Geospatial Technology

Hidenori Watanve

Talk11:00 @ Dahlia1

Title: Natural Language Querying of STAC Catalogs Using LLMs for Geospatial Visualization

Pakpoom Najanthom

Talk11:00 @ Ran1

What Could Possibly Go Wrong? A Practical Security Review of Popular Open-Source GIS Libraries

Jared Marcotte; Robert Cheetham

11:20 @ Phoenix Hall

From Satellite Data to Actionable Geospatial Applications: Building ArkEdge Insights with Open Source Technologies

Talk11:30 @ Room2

Every building on Earth

Danijel Schorlemmer

Talk11:30 @ Room4

Meeting Cyber Resilience Act September Deadline

Jody Garnett; Jeroen Ticheler

Academic11:30 @ Cosmos2

A Comprehensive Disaster Risk Analysis Model with GeoAI

Muhammed Oguzhan Mete

Talk13:00 @ Room4

Open Standards and Tools to Accelerate Global Crisis Response

Talk13:30 @ Room4

GeoSDC: A Spatial Data Infrastructure to support geological risk management in Santa Catarina State, Brazil

Carlos Eduardo Mota; Mauricio Marino; Matheus Klein Flach; Tiago Antonelli

Talk13:30 @ Room5

From GIS Visualization Needs to 3D City Models: The Current Trajectory of Project PLATEAU in a Global Context

Haruka Yasuda; Eukarya Inc.; Misaki Baba; Beatrice Charles Mkumbo; Sakurako Tsun

Intent-Centric Wildfire Monitoring: LLM and VLM Orchestration for Everyone

Talk14:00 @ Himawari

Operationalizing Impact-Based Flood Forecasting Using Open Geospatial Pipelines in Resource-Limited Contexts

Feye Andal; FRITZ DARIEL ANDAL

Talk14:00 @ Room4

Using Building Exposure Taxonomies in HOT Workflows

Sam Woodcock; Doren Calliku

Talk14:30 @ Room2

Beyond the Pixels: A PM’s Perspective on "Data Transition" – Transforming Satellite Imagery into Actionable Disaster Solutions

Raksina Maneechan

Talk14:30 @ Room6

Bridging LLM and GIS via Model Context Protocol for Conversational Flood Data Analysis

Narathorn Noophum

Academic14:30 @ Cosmos1

FloodA5: An Open-Source Framework for Flood Modelling on an Equal-Area Pentagonal DGGS

Academic15:30 @ Cosmos2

Shared Landscapes, Shared Futures: Visual Landscape Evolution Modelling for Community Stewardship

Vinuri Piyathilake

Talk16:00 @ Phoenix Hall

Impactful Data: International cooperation to increase the value of open-source data & software including in hazard scenarios

Jesse Whitehead; Fiu Etike Penjueli

Talk17:00 @ Himawari

From Map Layers to Knowledge Models: Extending Open GIS

Talk17:30 @ Room3

Re:Earth: Empowering Non-Experts with Open Source WebGIS — Case Studies from Educational Settings

Talk17:30 @ Room4

Development of a Wildfire Fireline Visualization Pilot System and Its Enhancement Plan Using Open-Source GIS Technologies

Juhyeon Gim; YOUNGWOOK YIM; dawoon Kim

Sep 3 (Day 3)

Talk11:00 @ Room5

From Chaos to Confidence: Practical DataOps with COG Optimization and Great Expectations for National-Scale Agriculture.

PEERANAT PRASONGSUK

11:10 @ Phoenix Hall

Applied Technology Co., Ltd.: An Innovation Company Transforming Challenges into Value

Kunihiko Hirosawa

Academic11:30 @ Cosmos2

Aitchison-Loss Training with Geospatial Embeddings Sharpens Compositional Land-Cover Maps

Narumasa Tsutsumida; Ayato Kanno

Academic13:00 @ Cosmos2

Learning with Spaceborne LiDAR for Enhancement of Bare-Earth Digital Elevation Models from Global Data

13:15 @ Phoenix Hall

Introduction to Our Company and Our Booth (Asia Air Survey)

Talk13:30 @ Room3

Beyond the Map: Designing GIS to Help People Understand the Places They Live

RED (XU CONG); Waqas Zulfiqar

Academic13:30 @ Cosmos2

Eliminating Temporal Misalignment in SAR Flood Detection with a ConvLSTM-Siamese Approach Using Sentinel-1 Time Series

中嶋達也; Narumasa Tsutsumida

14:00 @ Phoenix Hall

iRIC: An Open-Source Platform for River and Flood Simulation

Talk14:30 @ Himawari

From 6 People Classroom Meetup to 100 people Regional Conference: 16 Years Building an Open FOSS4G Community in Hokkaido

Yasuto FURUKAWA

Talk14:30 @ Room1

Serverless Watershed Extraction: Benchmarking Zarr vs COG for Large-Scale Flow Direction Data

Shinsuke Nakamori

Talk14:30 @ Room3

Women in Geospatial: My Journey Using OpenStreetMap for Engineering Solutions

Talk14:30 @ Room5

Rethinking Feature Data Services: A Composable Architecture for Geospatial APIs

Siriya Saenkhom-or

Academic14:30 @ Cosmos2

Integrating Machine Learning with Open-Source GIS for Reproducible High-Resolution Terrain Classification and Hazard Mapping from UAV LiDAR Data

Nikola Kranjčić

Application Domains

Transport & Mobility

All themes (154)Environment & Climate (77)Disaster & Resilience (39)Transport & Mobility (35)Urban & Smart City (35)Peace, Memory & Heritage (32)Agriculture & Food (15)Health (8)

Sep 1 (Day 1)

Academic13:00 @ Cosmos1

From CityGML to Game Engine: A Reproducible Open-Source Pipeline for Interactive 3D Urban Environments Using PLATEAU, Blender, and Godot

Academic13:30 @ Cosmos1

Scaling Open 3D City Models: Implementation and Validation of an AI-driven Automated Generation Tool “AI City Model Maker beta version”

Mayumi Mizobuchi

Talk14:00 @ Phoenix Hall

pgRouting project status

Talk14:00 @ Room1

GeoServer 3 complete - final update

Andrea Aime; Jody Garnett

Valinor: Valhalla Meets Rust

Amazon Location Service Plugin for QGIS: Basemaps, Geocoding, and Routing

Yasunori Kirimoto

Web-Based High-Performance Traffic Simulator: Advancing an Integrated Interaction Platform for Urban Planning Decision-Making

Cheun-gill Park; KIMDEOKHYEON

Talk14:30 @ Room3

Ferrostar: Tackling Navigation Challenges Through Collaboration

Academic14:30 @ Cosmos1

An Open Geospatial Framework for Proximity-Based Community Planning: Integrating Mobility-Based Community Detection, Multimodal Accessibility, and Facility Allocation Optimization

Talk15:30 @ Ran2

GeoServer 3 tour

Academic16:30 @ Cosmos2

GIS-Based Walking Map Isochrones in Measuring Transit Catchment: A Spatial Approach to Urban Accessibility

Academic17:00 @ Cosmos1

Capturing park-use behavior patterns using volunteered street view imagery: Does the likelihood increase with the volume of contributions?

Academic17:00 @ Cosmos2

Application of SUMO in Simulation of Optimized Traffic Light Timing derived using Artificial Neural Network and GIS

Nabilah Naharudin

Academic17:30 @ Cosmos2

Tool Selection for Detailed Accessibility Analysis Using GTFS Data: The Case of the Yamagata Urban Area

Sep 2 (Day 2)

A Map-First Conference Guide App with MapLibre for FOSS4G Hiroshima 2026

Haruki Inoue; Ryosuke Aoki

Tokyo Last Train Map: Visualizing "When You Can't Get Home" with Open Data from 17 Rail Operators

From Spatial Database to Public Accessibility Viewer: Open-Source Geospatial Support for Inclusive Mobility Planning in Slovenia

Talk14:30 @ Room2

Beyond the Pixels: A PM’s Perspective on "Data Transition" – Transforming Satellite Imagery into Actionable Disaster Solutions

Raksina Maneechan

Talk14:30 @ Room5

Mapping Fiber Without Operator Data: Evidence-Based Connectivity Indicators

CRISTIANE HONORA MILLAN

Academic14:30 @ Cosmos2

Open-Source Spatiotemporal Traffic Congestion Analysis at City Scale: A Reproducible Python Pipeline Combining PySAL, OSMnx, and Multilevel Modeling

Firman Hadi; Fauzan Abdullah

Academic15:30 @ Cosmos1

From Raw ADS-B Signals to Reproducible Flight Trajectories: An Open Geospatial Workflow for Narita Airport

Academic15:30 @ Cosmos2

Shared Landscapes, Shared Futures: Visual Landscape Evolution Modelling for Community Stewardship

Vinuri Piyathilake

Talk16:00 @ Phoenix Hall

Impactful Data: International cooperation to increase the value of open-source data & software including in hazard scenarios

Jesse Whitehead; Fiu Etike Penjueli

Talk16:00 @ Room3

The M4S Project: Scaling Seagrass Conservation in Timor-Leste through Participatory FOSS Workflows

Honey Fombuena; Dinar Adiatma

Talk16:30 @ Dahlia1

Eyes-Free Navigation: OSM-Powered Spatial Audio and AI Navigation for Visually Impaired Users.

Academic17:00 @ Cosmos1

Making OGC IndoorGML 2.0 Web-Ready: API – IndoorFeatures with IndoorJSON

Dong Gwon; Seongmin Choi

Sep 3 (Day 3)

11:30 @ Phoenix Hall

pipGIS: Cloud‑native Web GIS Platform for Municipal Workflows

Talk11:30 @ Ran1

The Paradox of Convenience: Decoding the Hidden Risks of OGC API and Architecting for Sustainable Control

Nuttawoot Rungsirirak

Talk13:00 @ Room1

From Legacy Data to National Standards: Preparing a Brazilian City for Federal Interoperability with FOSS4G

Narcélio de Sá

Academic13:00 @ Cosmos1

Data4Land - reproducible open-source tool for enrichment of land-use/land-cover rasters and connectivity maps.

Talk13:30 @ Ran2

Inside the Engine of “KnoWaterleak”: Real-Time Search and On-Demand Vector Tiles for Large Pipeline Data

Kenji Takase; Eugene Kim

14:00 @ Phoenix Hall

iRIC: An Open-Source Platform for River and Flood Simulation

Talk14:00 @ Room2

Eurostat vs OSM vs Census: Choosing Open Mobility Data for Urban Function Maps

Marija Ercegovac

Talk15:00 @ Room2

Digital Transformation in Railway Infrastructure

Nguyen Van Thien; Hirofumi Hayashi; Tatsuya Naka; Yayoi Oda; Tomohiro SHIMIZU

Academic15:00 @ Cosmos2

Machine Learning for Terrain Traversability Mapping: Accuracy, Uncertainty, and Data Limitations

Marek Wyszyński; Krzysztof Pokonieczny

Application Domains

Urban & Smart City

All themes (154)Environment & Climate (77)Disaster & Resilience (39)Transport & Mobility (35)Urban & Smart City (35)Peace, Memory & Heritage (32)Agriculture & Food (15)Health (8)

Sep 1 (Day 1)

Talk13:00 @ Room3

Explore open-source tools to create digital urban models for MapStore

Lorenzo Natali; Tobia Di Pisa; Stefano Bovio

Academic13:00 @ Cosmos1

From CityGML to Game Engine: A Reproducible Open-Source Pipeline for Interactive 3D Urban Environments Using PLATEAU, Blender, and Godot

Mapping What's Hidden: YouthMappers and Urban Drainage Completeness for Flood and Dengue Risk in OSM

Talk13:30 @ Room6

Drawing the Lines: Visualizing the role of climate change and urbanization shaping human-bear interactions in Japan

bonny p mcclain

Academic13:30 @ Cosmos1

Scaling Open 3D City Models: Implementation and Validation of an AI-driven Automated Generation Tool “AI City Model Maker beta version”

Mayumi Mizobuchi

Making Urban Data Explorable: 3D, GeoServer, and OSS

Fukushima Shotaro

Academic14:00 @ Cosmos2

Using WRF-UCM as Boundary Forcing for Microscale Models in Data-Scarce Urban Environments

Jaroslav Hofierka; Tomáš Fedor

Web-Based High-Performance Traffic Simulator: Advancing an Integrated Interaction Platform for Urban Planning Decision-Making

Cheun-gill Park; KIMDEOKHYEON

Academic14:30 @ Cosmos1

An Open Geospatial Framework for Proximity-Based Community Planning: Integrating Mobility-Based Community Detection, Multimodal Accessibility, and Facility Allocation Optimization

Talk15:30 @ Room1

landlensdb: A Python Package for Managing Proximity Sensing Imagery

Iosefa Percival; Narumasa Tsutsumida

Academic16:30 @ Cosmos1

How Does Walkability for Elderly People Differ between Hilly and Flat Urban Areas? A Case Study of Shin-Yurigaoka Station and Nagareyama-Otakanomori Station

Academic16:30 @ Cosmos2

GIS-Based Walking Map Isochrones in Measuring Transit Catchment: A Spatial Approach to Urban Accessibility

Academic17:00 @ Cosmos1

Capturing park-use behavior patterns using volunteered street view imagery: Does the likelihood increase with the volume of contributions?

Academic17:00 @ Cosmos2

Application of SUMO in Simulation of Optimized Traffic Light Timing derived using Artificial Neural Network and GIS

Nabilah Naharudin

Academic17:30 @ Cosmos2

Tool Selection for Detailed Accessibility Analysis Using GTFS Data: The Case of the Yamagata Urban Area

Sep 2 (Day 2)

Academic11:00 @ Cosmos1

Detecting Stable Urban Heat Island Signals in Satellite Land Surface Temperature Time Series: A Case Study of Zagreb, Croatia

Sanja Šamanović

Talk13:00 @ Phoenix Hall

Developing a QGIS Plugin for Urban Structure Evaluation

Satoshi Kitashima

Talk13:00 @ Ran2

Pedestrian Trajectory Mapping with MapLibre and OpenCV from Videos

Academic13:00 @ Cosmos2

Global contributors, local maps: the story of OpenStreetMap in a small town

Talk13:30 @ Dahlia2

Designing a Scalable Open-Source Workflow for Water Network Field Validation: Lessons from Costa Rica

Academic13:30 @ Cosmos2

Between Sacred Tradition and Urban Form: An OpenStreetMap-Based Analysis of Church Orientation Patterns in Milan

Hinako Terado; Taichi Furuhashi

Academic14:00 @ Cosmos2

Spatiotemporal Analysis of OpenStreetMap Editing Activities in Japan Using the OSMCha

Talk14:30 @ Room2

Beyond the Pixels: A PM’s Perspective on "Data Transition" – Transforming Satellite Imagery into Actionable Disaster Solutions

Raksina Maneechan

Academic14:30 @ Cosmos2

Open-Source Spatiotemporal Traffic Congestion Analysis at City Scale: A Reproducible Python Pipeline Combining PySAL, OSMnx, and Multilevel Modeling

Firman Hadi; Fauzan Abdullah

Talk17:30 @ Room3

Re:Earth: Empowering Non-Experts with Open Source WebGIS — Case Studies from Educational Settings

Sep 3 (Day 3)

11:10 @ Phoenix Hall

Applied Technology Co., Ltd.: An Innovation Company Transforming Challenges into Value

Kunihiko Hirosawa

11:30 @ Phoenix Hall

pipGIS: Cloud‑native Web GIS Platform for Municipal Workflows

Academic11:30 @ Cosmos2

Aitchison-Loss Training with Geospatial Embeddings Sharpens Compositional Land-Cover Maps

Narumasa Tsutsumida; Ayato Kanno

Talk13:00 @ Room1

From Legacy Data to National Standards: Preparing a Brazilian City for Federal Interoperability with FOSS4G

Narcélio de Sá

Talk13:30 @ Room1

Green Infrastructure Baseline using Open-Source Geospatial Data for Dammam, Saudi Arabia

Sultan Hasan Alsultan

Talk13:30 @ Room3

Beyond the Map: Designing GIS to Help People Understand the Places They Live

RED (XU CONG); Waqas Zulfiqar

Talk13:30 @ Room5

Democratizing Urban Development: The Potential of The Urban Digital Twin Platform "Machi Space®"

Hirofumi Hayashi; Kunihiko Hirosawa; Nguyen Van Thien

Talk14:00 @ Room2

Eurostat vs OSM vs Census: Choosing Open Mobility Data for Urban Function Maps

Marija Ercegovac

Academic14:00 @ Cosmos2

A Pipeline for Low-Cost Wide-Area 3D Mapping Using LiDAR-Equipped Mobile Devices and Open Data

Talk14:30 @ Room3

Women in Geospatial: My Journey Using OpenStreetMap for Engineering Solutions

Application Domains

Peace, Memory & Heritage

All themes (154)Environment & Climate (77)Disaster & Resilience (39)Transport & Mobility (35)Urban & Smart City (35)Peace, Memory & Heritage (32)Agriculture & Food (15)Health (8)

Sep 1 (Day 1)

Keynote10:00 @ Phoenix Hall

How Our Community Was Born — Looking Back on More Than 20 Years of History

Toru Mori; Venkatesh Raghavan; Markus Neteler

Talk13:30 @ Room2

Japan Geospatial Times: Exploring the History and Use Cases of Geospatial Technologies in Japan

The Map of Our History: The Journey of OSGeo Brazil

Narcélio de Sá

Academic15:30 @ Cosmos2

An open-source GeoAI workflow for mapping historic agricultural terraces

Filippo Brandolini

Talk16:00 @ Ran1

DigiAgriApp, 2026 updates

Academic16:00 @ Cosmos2

Examining the Relationship Between Tatara Iron Production and Grassland Distribution in Western Japan: An Open Geospatial Approach to Historical Landscape Analysis

Nobusuke Iwasaki; Ayaka Onohara; Takatora Bito

Talk16:30 @ Room3

OGC/ISO standards for CRS: a look back and a look ahead

Martin Desruisseaux

Sep 2 (Day 2)

Keynote09:30 @ Phoenix Hall

Memory, Technology, and Peace — Rebooting Memories and Geospatial Technology

Hidenori Watanve

Talk11:00 @ Dahlia2

Bringing Old Maps & Illustrated Maps to the Web: 10 Years of Maplat and Turning Misalignment into Innovation

Academic13:00 @ Cosmos1

Extending GeoNode as a Foundation for Research Data Management Infrastructures in Agricultural Research

Marcel Wallschläger; Igo Silva de Almeida

Talk13:30 @ Himawari

Detecting Quarry Pond Remnants on a Japanese Island Heritage Site Using Sentinel-2 Imagery and Open-Source Remote Sensing Tools

Academic13:30 @ Cosmos2

Between Sacred Tradition and Urban Form: An OpenStreetMap-Based Analysis of Church Orientation Patterns in Milan

Hinako Terado; Taichi Furuhashi

Academic14:00 @ Cosmos1

Rectangular vs Hexagonal Grid Tessellation for Spatial Analysis of Invasive Species: A Case Study of Aromia bungii in Saitama, Japan.

Narumasa Tsutsumida; Irhamillah

Talk14:30 @ Phoenix Hall

Citizen-Driven War Memory Mapping: Enabling Non-Experts to Build Geospatial Archives with Re:Earth CMS and Visualizer

Talk14:30 @ Room1

Mapping the Distance to History: Reading Barefoot Gen on a Map with Open Geospatial Tools

Talk15:30 @ Phoenix Hall

A New Approach to MapLibre Style Editing

Academic15:30 @ Cosmos2

Shared Landscapes, Shared Futures: Visual Landscape Evolution Modelling for Community Stewardship

Vinuri Piyathilake

Talk16:00 @ Room6

Current status and challenges of FOSS4G's Japanese localization

Talk17:00 @ Phoenix Hall

Mapping Peace: A GIS-Based Storytelling Platform for Global Peace Education from Hiroshima

Hiroshima Funairi High School

Talk17:00 @ Dahlia2

Japanese Map Culture: Inheritance through FOSS4G Technology

Ayumi Shibamoto

Talk17:00 @ Room4

A cultural database for down to earth users: open source maps, media, and design in Indigenous Australia

Talk17:30 @ Phoenix Hall

High School Students' Journey with Re:Earth: Initiatives for Peace and Education

Michi Okada; masahiro torii

Sep 3 (Day 3)

Talk11:00 @ Dahlia2

Operating Maritime AIS at Enterprise Scale with GeoServer

Andrea Aime; Nuno Oliveira

Talk11:00 @ Room5

From Chaos to Confidence: Practical DataOps with COG Optimization and Great Expectations for National-Scale Agriculture.

PEERANAT PRASONGSUK

11:05 @ Phoenix Hall

From Open Source to Real-World Impact: Building Sustainable Geospatial Solutions with Maplat

Academic11:30 @ Cosmos1

Synergistic use of PRISMA hyperspectral data and a random forest algorithm to map soil nutrients in sugarcane fields in Northeast Thailand

Jaturong Som-ard

Talk13:00 @ Ran1

Current GIS Applications in Hokkaido Agriculture and Hokuren's FOSS4G Initiatives with QGIS

Talk13:00 @ Room1

From Legacy Data to National Standards: Preparing a Brazilian City for Federal Interoperability with FOSS4G

Narcélio de Sá

Talk13:00 @ Room3

Reusable Geospatial Application Design for the Global South with MapLibre, STAC, and TiTiler

Talk14:00 @ Ran1

Rekichizu: Designing Modern-Style Historical Maps to Preserve Cultural Memory

Hajime Kato; Asanobu Kitamoto

Talk14:30 @ Dahlia2

Supporting precision farming with GeoServer: past experiences and way forward

Andrea Aime; Simone Giannecchini

Talk15:00 @ Room3

Why Nominatim Can't Find Hiroshima Peace Memorial Museum - and How to Fix It

Application Domains

Agriculture & Food

All themes (154)Environment & Climate (77)Disaster & Resilience (39)Transport & Mobility (35)Urban & Smart City (35)Peace, Memory & Heritage (32)Agriculture & Food (15)Health (8)

Sep 1 (Day 1)

Academic15:30 @ Cosmos2

An open-source GeoAI workflow for mapping historic agricultural terraces

Filippo Brandolini

Talk16:00 @ Ran1

DigiAgriApp, 2026 updates

Sep 2 (Day 2)

11:20 @ Phoenix Hall

From Satellite Data to Actionable Geospatial Applications: Building ArkEdge Insights with Open Source Technologies

Talk11:30 @ Cosmos1

End-to-End Deep Learning Analysis Pipeline for Early-Season Crop Mapping using Sentinel Data and Continuous Wavelet Transforms

Sarawut Ninsawat; Thantham Khamyai; sittichai choosumrong

Academic13:00 @ Cosmos1

Extending GeoNode as a Foundation for Research Data Management Infrastructures in Agricultural Research

Marcel Wallschläger; Igo Silva de Almeida

Talk13:30 @ Room2

Cognitive Motion Design Redefining Interaction in map applications : Use case for Smart Agriculture

Academic14:00 @ Cosmos1

Rectangular vs Hexagonal Grid Tessellation for Spatial Analysis of Invasive Species: A Case Study of Aromia bungii in Saitama, Japan.

Narumasa Tsutsumida; Irhamillah

Talk16:30 @ Room2

Between coffee farmers and an EU portal: When is a polygon actually valid?

Christoph Friedrich

Sep 3 (Day 3)

Talk11:00 @ Room5

From Chaos to Confidence: Practical DataOps with COG Optimization and Great Expectations for National-Scale Agriculture.

PEERANAT PRASONGSUK

Academic11:00 @ Cosmos1

Comparing uncertainty quantification methods for Random Forest-based digital soil mapping

Talk11:30 @ Ran2

From Data to Insights: Decision-Support tool application with the Goa Agriculture Department

Academic11:30 @ Cosmos1

Synergistic use of PRISMA hyperspectral data and a random forest algorithm to map soil nutrients in sugarcane fields in Northeast Thailand

Jaturong Som-ard

Talk13:00 @ Ran1

Current GIS Applications in Hokkaido Agriculture and Hokuren's FOSS4G Initiatives with QGIS

Talk13:00 @ Room3

Reusable Geospatial Application Design for the Global South with MapLibre, STAC, and TiTiler

Talk14:30 @ Dahlia2

Supporting precision farming with GeoServer: past experiences and way forward

Andrea Aime; Simone Giannecchini

Application Domains

Health

All themes (154)Environment & Climate (77)Disaster & Resilience (39)Transport & Mobility (35)Urban & Smart City (35)Peace, Memory & Heritage (32)Agriculture & Food (15)Health (8)

Sep 1 (Day 1)

Academic13:00 @ Cosmos2

Comparative analysis of route and health care facilities for the emergency patients of Pune and Bengaluru

Adwait Priyadarshan

Mapping What's Hidden: YouthMappers and Urban Drainage Completeness for Flood and Dengue Risk in OSM

Academic13:30 @ Cosmos2

Linking provider catchment and SaTScan risk clusters for evidence-based public health nursing in Japan

Academic14:30 @ Cosmos1

An Open Geospatial Framework for Proximity-Based Community Planning: Integrating Mobility-Based Community Detection, Multimodal Accessibility, and Facility Allocation Optimization

Academic17:00 @ Cosmos1

Capturing park-use behavior patterns using volunteered street view imagery: Does the likelihood increase with the volume of contributions?

Sep 2 (Day 2)

Talk14:30 @ Room3

Accelerating Climate Action: Building GIS Dashboards with openEO and titiler

Sep 3 (Day 3)

Academic11:30 @ Cosmos1

Synergistic use of PRISMA hyperspectral data and a random forest algorithm to map soil nutrients in sugarcane fields in Northeast Thailand

Jaturong Som-ard

Talk14:30 @ Room3

Women in Geospatial: My Journey Using OpenStreetMap for Engineering Solutions