Change Detection for Flood and Burning Events Using MODIS 250m Data and the Vegetative Cover Conversion Algorithm
Abstract
Rapid detection of changes in the earth's land cover are important not only for global change research, but also for managing natural and human systems. The Vegetative Cover Conversion (VCC) algorithm suite developed for the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument onboard NASA's Terra earth observing spacecraft provides such results. VCC utilizes the 250m spatial resolution red and near-infrared channels unique to the MODIS instrument. VCC provides an "alarm" product using the frequent repeat cycle of the MODIS polar orbit to identify changes in land cover resulting from processes such as flooding and burning as well as human activities such as deforestation and urbanization. This presentation will show VCC results which are germane to land management and emergency response. Flooding examples include events in Southeast Asia (September 2000) and Mozambique (February 2001). Burned area examples include the Western U.S. (Summer 2000) and Florida (February 2001). Deforestation in South America and Canada will also be examined. The VCC algorithm can be used to determine the extent of change events and also to focus rehabilitation or response efforts, such as watershed protection in areas which were recently burned.
- Publication:
-
AGU Spring Meeting Abstracts
- Pub Date:
- May 2001
- Bibcode:
- 2001AGUSM...B31A11S
- Keywords:
-
- 1640 Remote sensing;
- 1821 Floods