Remote Sensing and Spatial Data Processing for Dongsha Atoll National Park of Taiwan

Project Duration	2005-12-31 ~ 2006-12-30
Research Title	Remote Sensing and Spatial Data Processing for Dongsha Atoll National Park of Taiwan
Contracted Organization	Society for the Conservation of Territorial Resources
Principal Investigator	Lee Pei-Fen
Co-Principal Investigator	Lu Yen-Chan
Project Personnel	Ko Chia-Yin, Lien Yu-Yi, Yang Man-Yu, Wang Chin-Mei, Lo Min-Li, Lee Yi-Wen
Keywords	Remote sensing imagery, aerial photography, Geographic Information Service System
Abstract	The project established five primary objectives: 1. To collect spatial data for Dongsha Atoll National Park; 2. To build a spatial data storage, display, and application system for the park; 3. To analyze past and present environmental conditions based on existing information; 4. To provide training and online data query services; 5. To conduct preliminary overall planning for future GIS-related tasks of the National Park Headquarters. A total of 476 spatial layers were established, including remote sensing imagery (QuickBird, aerial photographs, Formosat-2, SPOT, Landsat 7, AVHRR, etc.), landscape planning data, grid systems, sea surface temperature (SST), natural resource distribution, islands, large marine ecosystems, bathymetry, waterways, meteorological data, biological distribution datasets, and other marine resource surveys (such as land-use zoning maps and shipwreck study locations). Using SST datasets from January 1985 to December 2005, monthly variation trends were analyzed within the Dongsha Atoll region, revealing a slight increasing trend in recent years. High-resolution remote sensing imagery was also used to assess the impacts and subsequent recovery following Typhoon Pearl in May 2006. An internal web-based Geographic Information Service System (GIS) was developed to provide online access to spatial data layers. Recommendations were proposed for the GIS infrastructure of Dongsha Atoll National Park, covering hardware and software configuration, remote sensing applications, data acquisition, GIS layer update frequency, and development of application modules. Finally, suggestions were made for future research, including both immediately implementable tasks and projects to be carried out within the next five years.