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| 10:30 | Toward AI-Ready Urban Digital Twins: A Unified Geospatial Middleware Architecture for the City of Vienna PRESENTER: Felix Huemer ABSTRACT. Cities are building digital twins to better understand and manage urban systems, but most current infrastructures focus on visualisation rather than advanced analytics. This paper presents a practical middleware architecture that connects diverse city data through semantic integration and AI-ready workflows. Grounded in Vienna’s digital twin, it offers a scalable framework for smarter urban planning and decision-making. |
| 10:45 | A Digital Twin–Based Methodology for Identifying Heavy Rainfall Hazard Locations on Motorways ABSTRACT. Heavy rainfall poses increasing risks to motorway safety, particularly in terrain-embedded sections where external runoff amplifies surface water accumulation. This paper presents a digital twin-based methodology combining high-resolution LiDAR data and hydrological-hydraulic simulation to identify hazard-prone sections. Results show that terrain-driven inflows significantly influence risk formation and can be operationally integrated into C-ITS and DATEX II-based warning systems. |
| 11:00 | Quantifying Visual Impact of Ski Infrastructure Using Distance-Weighted Viewshed Analysis and VR-based Assessment ABSTRACT. This study quantifies the visual impact of a proposed ski infrastructure on hiking trails using distance-weighted viewshed analysis. By incorporating distance decay, Trail Visibility Scores were computed and validated using VR simulations. Results show strong correlations between modeled and perceived impacts. This workflow provides a transparent framework for visual impact assessment and demonstrates the potential of VR-based validation to link GIS modeling with perceptual evaluation. |
| 11:15 | Empirical Estimation of Urban Photovoltaic Potential: Integrating DailyWeather Variability and Directional Scaling in Salzburg, Austria ABSTRACT. Standard solar cadasters often lack local weather accuracy. This study presents a GIS-based directional scaling factor (DSF) method to assess 2024 rooftop photovoltaic (PV) potential in Salzburg, Austria. Combining empirical data (995 kWh/kWp) with urban roof geometry data, the model estimates a theoretical energy output of 392 GWh/year. Validated against municipal baselines, results show rooftop PV could theoretically meet 130% of Salzburg’s residential electricity demand. |
| 11:30 | Mapping Indoor Sounds as Potential Landmarks for Auditory Wayfinding ABSTRACT. Landmarks are essential for human navigation, and while researchers extensively studied visual landmarks, auditory landmarks remain largely unexplored. We systematically map a total of 248 indoor sounds across three university campus buildings and develop a two-level taxonomy, identifying 11 sound classes with their respective subclasses. The results show indoor sounds can be systematically mapped and characterised, providing a novel dataset for supporting auditory wayfinding. |
| 10:30 | Modelling exposure of hiking trails to assess potential glacier retreat impact PRESENTER: Florian Albrecht ABSTRACT. Glacier retreat affects the trails and huts in the high mountain regions in Austria. To support alpine associations in their mitigation and adaptation measures, we model exposure of the trail network by integrating criteria of trail usage and maintenance derived from available attributes and ancillary data. We integrate the resulting exposure map with a preliminary hazard map based on slope deformation rates originating from InSAR analysis of Sentinel-1 data, thus modelling potential impact. |
| 10:45 | Designing a Decision-Support Framework for EO-based Landslide Information PRESENTER: Carla Mae Arellano ABSTRACT. Landslides often disrupt access and services in humanitarian operations, yet their integration into routine Earth Observation workflows is limited. This work introduces a scenario‑based decision‑support framework from the LEONA project, guiding how landslide‑related EO resources are selected for different MSF operational contexts. It organizes tools and datasets by urgency, information needs, and processing effort to enable more consistent, context‑aware use of landslide information. |
| 11:00 | Assessment of Forest Degradation from Sentinel-2 Time-Series Data in two African Countries PRESENTER: Manuela Hirschmugl ABSTRACT. This study enhances forest degradation detection by integrating Sentinel-2 time series analysis (TSA) using the Kalman filter/CUSUM approach in two Africa countries in support of the EU deforestation regulation (EUDR). Results show an OA of 83.5% and 69.3% resp. in contrast to an existing degradation product with an OA below 60% for both sites. The results highlight the potential of advanced Sentinel-2 TSA for detecting subtle forest changes, thus supporting effective monitoring under EUDR. |
| 11:15 | Spatio-temporal Monitoring of Mangrove Structural and Functional Dynamics Using an Integrated Remote Sensing Framework: Evidence from the Indian Sundarbans PRESENTER: Rhythem Kaushal ABSTRACT. Mangroves are critical coastal ecosystems threatened by rising sea levels, salinity intrusion and cyclones. This study proposes and develops an integrated geospatial framework by utilizing CMRI and NDCI to monitor structural and physiological dynamics of mangroves respectively in Indian Sundarbans from 2016-2025 using Sentinel-2 in Google Earth Engine. Results reveal seasonal stress, recovery patterns and temporal behavior which supports long-term monitoring, conservation and restoration. |
| 11:22 | Geospatial Monitoring of Community Forest Dynamics Using Multi-Temporal Landsat Data: A Random Forest Approach in Cross River State, Nigeria PRESENTER: Ayomide Akinfasoye ABSTRACT. Community forests in West Africa remain poorly monitored due to limited data. This study applies a machine learning geospatial approach using multi-temporal Landsat imagery (2021–2023) to analyse forest dynamics in the Iko Esai Community Forest, Nigeria. A Random Forest classifier and NDVI were used to detect change, achieving high accuracy (>97%). Results show localized deforestation and regeneration, highlighting both anthropogenic pressure and recovery potential. |
| 11:29 | Satellite-Based Monitoring of Forest Phenology Response to Climate Variability Using Sentinel-2 NDVI Time Series in the Białowieża Forest PRESENTER: Taisiia Kalynych ABSTRACT. Vegetation phenology is widely recognized as a sensitive indicator of climate variability and environmental change, particularly in temperate forest ecosystems where temperature and the availability of water strongly influences seasonal vegetation development. This study investigates forest phenology dynamics and their relationship with temperature variability using Sentinel-2 NDVI time series in the Białowieża Biosphere Reserve, one of the last remaining primeval forest ecosystems in Europe. |
| 10:30 | Meet the Keynote Speaker: Michael Putz |
| 13:00 | PyroScout: Near-Realtime-Erkennung von Waldbrand-Hotspots durch UAV-gestützte Wärmebildanalyse PRESENTER: Sebastian Greifeneder ABSTRACT. PyroScout ist ein UAV-gestütztes System zur Near-Realtime-Erkennung und Visualisierung thermischer Hotspots. Im Zentrum steht die Unterstützung der Brandwache und Nachbeobachtung betroffener Flächen nach einem Brandereignis. Ziel ist es, Einsatzkräfte und kommunale Akteure dabei zu unterstützen, kritische Bereiche effizienter zu identifizieren, Überwachungsaufwände gezielter zu priorisieren und Entscheidungen auf Basis georeferenzierter Wärmebildinformationen zu treffen. |
| 13:07 | Satellitenbasierte Schätzung von Ertrags- und Qualitätsdynamiken für das österreichische Grünland – von der Forschung zur operationellen GIS-Applikation ABSTRACT. Im Projekt SatGrass wurde ein integrierter Modellansatz für Grünlandmanagement entwickelt, der Erdbeobachtungs-, Wetter- und Ground-Truth-Daten kombiniert. Mit robuste Modellen zur Schätzung von Vegetationsbeginn, Schnittzeitpunkt und Trockenmasseertrag sowie Rohproteingehalt wurde eine operative Web-Applikation entwickelt, die zeigt, wie GIS, Fernerkundung und KI zu einem Entscheidungsinstrument für landwirtschaftliche Betriebe, Beratung und Agrarpolitik zusammengeführt werden kann. |
| 13:22 | Hitzetagsimulationen auf Basis von Airborne Laserscanning-Daten ABSTRACT. Die Firma Laserdata GmbH aus Innsbruck bietet Hitzetagsimulationen auf Basis von Airborne Laserscanning-Daten als neuartige Dienstleistung an. Über Punktwolkenaufbereitungen, Aufbau von dichtebasierten Vegetationsvoxeln, Einzelbaumsegmentierung und Einstrahlungssimulationen entstehen GIS-fähige Kartenlayer für Kommunen und Regionen. Diese können so die Schattenleistung ihrer Bäume quantitativ bewerten und als wirksame Klimaanpassungsinstrumente gezielt managen. |
| 13:29 | Developing a Dashboard on Climate Impact Data for Central Europe – the Project Climate_CRICES ABSTRACT. Heat, drought and flooding as well as the impact on biodiversity are the most important phenomena detected across the Central European regions according to the recent reports of the IPCC. Huge quantities of environmental, water and meteorological data both available within the public institutions and from unprecedented sources of data (e.g. earth observation data), are not being fully exploited for reliable climate change impact plans. To support adaptation efforts, a dashboard is developed. |
| 14:45 | Fitness for purpose of OpenStreetMap for land-use/land-cover monitoring in Germany: Evaluating Completeness, Currentness and Thematic Accuracy ABSTRACT. In Germany official land use land cover monitoring is currently based on a mix of information from earth observation products and ordnance survey maps. This study investigates the potential of land use information from OpenStreetMap to supplement the official data set. Our focus is thereby on completeness, currentness and thematic accuracy against the administrative land-use/land-cover product. User activity is used as an additional indicator. |
| 15:00 | A Serious Game for Combinatorial Aspects of Disasters ABSTRACT. In this paper, we present a serious game in the form of a physical board game designed to showcase the impact of different combinatorial parameters of disaster scenarios and to support various stakeholders and the general public in understanding their effects and resulting implications with regard to disaster relief efforts in a non-traditional learning setting. |
| 15:15 | The u3Green Model: Participation, geomedia and young people ABSTRACT. Based on the example of the project u3Green, this presentation highligths and discusses the advantages and disadvantages of the involvement of young people in participatory project initiatives, also considering the use of geomedia (i.e. corresponding online geoinformatics tools) by school students (as lay people) in the context of different participation formats like workshops and internships. |
| 15:22 | The Application of AI for Learner-Centered Support in the Analysis of Earth Observation Data in Geography Education PRESENTER: Julian Stolz ABSTRACT. An AI-based tutoring system is being developed to assist learners in analyzing complex Earth observation data in geography education. Using a Retrieval-Augmented Generation (RAG) architecture, the assistant provides adaptive, process-oriented feedback to reduce cognitive load. Planned intervention studies will investigate its impact on subject-specific understanding and problem-solving strategies, while also analyzing potential risks such as automation bias. |
| 15:29 | New yet firmly established: the development of a degree program at the intersection of geo(infor)matics and data science at Karlsruhe University of Applied Sciences ABSTRACT. The presentation demonstrates how a university is transforming its geo(infor)matics education through participatory formats: with a new Bachelor program, an adapted Master program, and a cross-faculty structure that brings together computer science, data science, and spatial expertise. This involves strategic decisions, curricular architecture, and an answer to the question of how geo(infor)matics can be repositioned as a study field and profession. |
| 15:36 | Young People in Place: A Participatory Transnational Civis Open Lab ABSTRACT. We present the conceptual framing of a transnational project on young people's experiences in the city. Three case studies using participatory methodologies are described, in Salzburg, Madrid and Maputo. We draw from these cases to argue in favor of geo-spatial approaches to socio-educational interventions. |
| 14:45 | Mapping Urban Cooling Inefficiency Hotspots in the Dhaka Region Using Deep Learning and Landsat-Derived Indicators ABSTRACT. Urban areas in rapidly developing countries are facing an extensive temperature increase due to the loss of vegetation and expansion of impervious surfaces. This altered the local microclimates while reducing the effectiveness of natural cooling mechanisms and making heat mitigation an urgent planning priority. Dhaka, the capital of Bangladesh, is one of the most densely populated and fast-growing cities in the world... |
| 14:52 | Assessing Subsidence-Induced Runoff Changes in Extreme Events at Bogdanka Coal Mine Using Automated Terrain-Based Hydrological Modelling PRESENTER: Yessica Yara ABSTRACT. Mining subsidence in the Bogdanka coal mine—reaching three meters—intensifies runoff and local flood hazards in low‑gradient terrain. Using high‑resolution LiDAR DEMs and SCS‑CN runoff modelling, we quantified runoff changes during extreme precipitation in 2018 and 2024. Runoff increased by up to 12.6% in maximally subsiding zones, while reference areas showed minimal change, demonstrating the value of integrating terrain deformation into flood‑risk assessment. |
| 15:07 | Tracking Glacial Lake Dynamics and Predicting Outburst Hazards: Case Studies from Kyrgyzstan PRESENTER: Kydyr Nazarkulov ABSTRACT. Glacial lakes in the Kyrgyz Tien Shan pose growing hazards as glaciers retreat. This study presents a workflow combining Sentinel-2 NDWI monitoring with RAMMS debris flow modelling for GLOF hazard assessment. For Zyndan-western, the 2024 outburst cycle was documented and a hazard zone delineated. For Takyrtor, satellite detection in June 2025 triggered emergency response before the 27 June outburst. Using freely available data, the workflow supports automated GLOF early warning in the Tien Shan. |
| 15:22 | From open landscapes to urban green: a long-term perspective on green space transformation in Krakow PRESENTER: Jacek Kozak ABSTRACT. This study examines nearly 180 years of green-space transformation in Kraków, one of the largest cities in Poland, whose administrative area expanded more than fortyfold during the analysed period. We vectorised Austro-Hungarian cadastral maps at a scale of 1:2880 (mid-19th century) and maps of the Kraków Fortress at a scale of 1:10,000 (early 20th century), supplemented by historical statistical records. Based on these materials, we reconstructed historical land cover within the present-day administrative boundaries of Kraków and compared it with contemporary land use and land cover datasets based on the digital Database of Topographic Objects (BDOT10k). The proposed methodological framework, combining detailed historical cartography with contemporary geospatial datasets, may also be applied to other Central European cities with comparable archival resources and urbanisation histories. Our analysis showed that, in the mid-19th century, the area of present-day Kraków beyond its compact urban core was dominated by open landscapes, including cropland, grasslands, and pastures, while forests covered only 6.3% of the area. The incorporation of surrounding rural areas into the city and their subsequent urbanisation and industrialisation led to a substantial loss of agricultural land. At the same time, however, the share of forests and other tree-covered areas increased to more than 12%, and several former agricultural areas were transformed into urban green spaces, particularly around the structures of the Kraków Fortress, most of which were built in the second half of the 19th century. Although historical agricultural landscapes constituted an important component of the city’s surroundings, they did not necessarily provide the same ecological and climate-regulating functions as contemporary urban green infrastructure. Today, urban green spaces play an increasingly important role in mitigating urban heat island effects, supporting biodiversity, and strengthening climate change adaptation in densely urbanised areas. Three main models of landscape transformation around Kraków Fortress structures were identified. First, central defensive structures, including bastions, half-bastions, and local defensive points, were almost entirely absorbed by urban development, with built-up and mixed built-up–agricultural/open land-use types accounting for 75–100% of the analysed sites. Second, more peripheral fortifications retained a relatively high share of open and green areas. Third, the outer-ring forts were characterised by progressive landscape diversification and increasing afforestation, reflected in the dominance of transitions towards forested and mixed land-cover categories, particularly forest–agricultural (21.9%), agricultural–forest (15.6%), and built-up–forest (15.6%). The remaining structures of the Kraków Fortress may still play an important role in shaping and managing urban open and green spaces. Their continued presence influences the spatial structure of the landscape and helps preserve open landscape patterns and historical spatial continuity despite ongoing urbanisation. In conclusion, we argue that identifying persistent and non-persistent forms of green space from a historical perspective can support urban policy-making and spatial planning by highlighting areas critical for ecosystem continuity and resilience. Such an approach may help guide the long-term protection and development of urban green infrastructure under increasing urbanisation pressure. Historical analyses of green-space transformation can therefore contribute to a better understanding of the long-term resilience of urban ecosystems under conditions of rapid urban and climatic change. The project “Past and Future of Green Spaces in Large Urban Agglomerations in Europe: The Case of Kraków” is supported by the Strategic Programme “Excellence Initiative at the Jagiellonian University”, Priority Research Area “Anthropocene.” |
| 15:29 | Democratizing GIS: Exploring language models for non-expert GIS analysis in climate adaptation planning ABSTRACT. Geospatial data is indispensable for evidence-based climate adaptation planning, yet GIS analysis remains largely inaccessible to non-expert decision-makers. This pitch presents my current findings on leveraging language models to enable natural language-based access to heterogeneous geodata. A central focus is placed on the pitfalls of language models in this context — including hallucinations, lack of output transparency, and the risk of uncritical output adoption by lay users who may lack the methodological background to assess model-generated results — and on strategies to mitigate them. |
| 14:45 | w3geo - schauen Sie uns in die Karten! ABSTRACT. In dieser Präsentation geben wir einen ganz kurzen Überblick über Web-Anwendungen, die wir bei w3geo entwickeln. Wir zeigen, wie wir geographische Informationen leicht verständlich und effizient darstellen, und welche Ansätze wir für Arbeitsabläufe zum Erfassen und Editieren räumlicher Sachverhalte entwickelt haben. Alle unsere Lösungen sind maßgeschneidert und dank Web-Technologien und 100% Open Source Komponenten (z.B. OpenLayers für Karten) frei von versteckten Kosten und Vendor Lock-In. |
| 14:52 | EODC: providing cloud native geo data access via ACube ABSTRACT. The Austrian Data Cube (ACube) is a service offering to consume a number of different geospatial data collections. This presentation gives an overview of its cloud-native setup, with a focus on using Zarr for efficient and scalable data access. By working with chunked, analysis-ready datasets directly in object storage, ACube allows parallel processing without large downloads, making geospatial workflows faster, more flexible, and easier to reproduce. |
| 14:59 | From Greenfield to Brownfield – A WebGIS System for Registering Brownfield Sites in Hungary PRESENTER: Dénes Zoltán Móricz ABSTRACT. We are creating a unified WebGIS platform to register and manage brownfield sites, promoting reuse of underutilized, degraded urban areas. The system offers a public map with parcel data, search tools, and thematic layers. Future developments include municipal editing, official validation, monitoring features, and AI support for decision-making. |
| 15:06 | User Oriented Solutions from Space for Sustainable Urban Planning ABSTRACT. User-oriented space data applications are transforming sustainable urban planning. The Vienna Geospace Hub connects stakeholders to turn Copernicus earth observation data into actionable solutions from space. Monitoring infrastructure, vegetation and micro climate to enabling data-driven decision-making. Projects are co-designed with public administrations to enable the integration of geo-solutions into operating systems. |
| 15:13 | EONavi application – Supporting cross-country movement using traversability maps derived from ESA Sentinel-2, ESA digital elevation models and OpenStreetMap data PRESENTER: Raphael Prinz ABSTRACT. EONavi intends to demonstrate a (semi-) automated workflow to calculate traversability maps supporting terrain assessment for cross-country movement (CCM). The main goal was to calculate traversability maps for different vehicle types and any global area of operation in a matter of minutes. Data collection was focused on globally available data sets like ESA Coper- nicus satellite data (Sentinel-1/2, DEM) and OpenStreetMap (OSM) data. Finally, the workflow was shown in a web application. |