Urgent Image Processing for a Daily Revisit Satellite
- Paper number
IAC-07-B1.4.07
- Author
Dr. An-Ming Wu, National Space Organization, Taiwan, China
- Coauthor
Dr. Ching-Jyh Shieh, Taiwan, China
- Coauthor
Dr. Frank Wu, Taiwan, China
- Year
2007
- Abstract
FORMOSAT-2 satellite was launched on May 20, 2004, and is currently on a Sun-synchronous orbit of 14 rev/day. It has taken images for important area over the world, especially for the southern Asia earthquake and tsunami on Dec. 26, 2004, the Hurricane Katrina in the southeastern United States on Aug. 29, 2005, the Pakistan earthquake on Oct. 8, 2005, and the Amundsen-Scott South Pole Station (90 deg S) after Autumn Equinox of 2006. The satellite has the agility of ±45 deg for along-track and cross-track viewing, and provides images with resolutions of 2 m in panchromatic band and 8 m in multispectral bands and swath of 24 km. With the capabilities of daily revisit and large coverage of the satellite, its applications have impacts to many aspects including disaster investigation, environment monitoring, and vegetation evaluation. The daily repetitivity of FORMOSAT-2 simplifies operations, scheduling, and processing, and the users are easy to request images for urgent needs. To elaborate the capability of daily revisit, we take a sequence of actions, which includes watching the realtime news and weather forecast, connecting the worldwide network for disaster relief, and preparing imaging commands. After download, the image will be processed in high priority, and compared with the archive images. At the same time, we inform the related organizations, distribute the images, and plan for the next-step imaging activities. A quick algorithm for geometric correction and change detection is proposed for the urgent image processing, so that the whole process from the awareness of an event to the delivery of the images can be finished in four hours.
- Abstract document
- Manuscript document
IAC-07-B1.4.07.pdf (🔒 authorized access only).
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