R1.01
Urban expansion and ecosystem service provision
Analysis of multidecadal urban expansion and ecosystem service provision (National Science and Technology Council, Taiwan, 2024–2026).
001 / About
Mapping multidecadal urban expansion pressure on ecosystems and rural periphery.
Remote-sensing turned engineering geologist and geomatics researcher and teacher educated in Germany, with experience in planetary and terrestrial remote-sensing research, geospatial analysis, and knowledge engineering. Current work applies geographic information system technology, spatial modeling, and machine learning tools to land-use and land-cover analysis. Current projects focus on national-scale LULC dynamics and rural land transformation in Taiwan.
ISS/Nikon D5 / 2021-07-26 23:56 CST [Source]
Taipei's urban enclave within the larger metropolitan area.
Taipei's urban enclave within the larger metropolitan area.
Research and Funded Projects.
Multidecadal national land-use and land-cover dynamics in Taiwan using applied machine-learning models. Interdisciplinary work on rural land transformation and fragmentation, with a focus on policy-relevant indicators. Development of web-based GIS platforms and data-processing pipelines that support planning and spatial decision making. to Research
R1.02
Ecosystem-service metrics
for New Taipei City
for New Taipei City
Urban pressure dynamics on ecosystem-service provision, New Taipei (National Science and Technology Council, Taiwan, 2025–2026).
Publication Updates.
Spatial data analysis and information mangement covering land-use land-cover scenarios as well planetary surface studies. to Publications
2026.03
Land-Cover Change
van Gasselt, S. & Rossi, A.-P.,
"Stabilization of Spatio-Temporal Representations for Harmonized Land Cover Change Analysis".
IGARSS 2026 — 2026 IEEE International Geoscience and Remote Sensing Symposium (accepted).
2026.01
Surface Studies
Neesemann, A., van Gasselt, S., & Riedel, C.,
"Revisiting the crater-based age of Cerealia Facula: High-resolution XMO7 data, measurement uncertainties, and chronological frameworks".
Icarus, 447, 116908, 2026.
doi: 10.1016/j.icarus.2025.116908
2025.08
Land-Cover Change
van Gasselt, S.,
"Monitoring of Urban Expansion Pressure on Peri-Urban Ecosystems in Taipei City, Taiwan",
IGARSS 2025 — 2025 IEEE International Geoscience and Remote Sensing Symposium,
Brisbane, Australia, 2025, pp. 3490-3494.
doi: 10.1109/IGARSS55030.2025.11313895
2024.02
Knowledge Models and Metadata
van Gasselt, S., & Naß, A.,
"Cartographic Metadata for Improving Accessibility and Facilitating Knowledge Extraction and Validation in Planetary Mapping Based on Remote-Sensing Observations". ISPRS Int. J. Geo-Inf., 13(3), 69, 2024, doi: 10.3390/ijgi13030069
Courses and Seminars.
Invited and regular seminars and courses in the Land Surveying group's curriculum in the Department of Land Economics at National Chengchi University. to Teaching
T4.01 / SMD
Spatial Modeling / 空間資料模型
Design and application of spatial data models for land management and administration using spatial databases and GIS.
T4.02 / SDM
Spatial Decision Making / 空間決策
Theory and practice of normative decision making, extended to spatial problems using GIS and spatial databases.
T4.03 / CGR
(Digital) Cartography / 地圖學
Foundational concepts of cartography and implementation of mapping principles for thematic and topographic maps, and plans for surveying and planning.
T4.04 / CAD
Computer Aided Design / 電腦繪圖
Theory and practice of Computer Aided Design (CAD) for spatial planning, mapping and plans, architectural design, and 3D modeling.
T4.05
Data-Driven Decisions in Spatial Planning
Seminar in the Regular Session on Land Policy for Rural Development at the
International Center for Land Policy Studies and Training (ICLPST).