HR: 0800h
AN: B41B-0104    [Abstracts]
TI: An Assessment of Ecosystem Effects of Wildfire from Space: Case Study of the 2002 Okefenokee Fire
AU: * Qu, J
EM: jqu@gmu.edu
AF: CEOSR/SCS/George Mason University, 4400 University Drive, MS 5C3, Fairfax, VA 22030 United States
AU: Liu, Y
EM: yliu@fs.fed.us
AF: USDA Forest Service, Forestry Sciences Laboratory 320 Green Street 320 Green Street Forestry Sciences Laboratory 320 Green Street , Athens, GA 30602 United States AU: Hao, X
EM: xhao1@gmu.edu
AF: CEOSR/SCS/George Mason University, 4400 University Drive, MS 5C3, Fairfax, VA 22030 United States
AU: Dasgupta, S
EM: sdasgupt@gmu.edu
AF: CEOSR/SCS/George Mason University, 4400 University Drive, MS 5C3, Fairfax, VA 22030 United States
AU: Dasgupta, S
EM: sdasgupt@gmu.edu
AF: USDA Forest Service, Forestry Sciences Laboratory 320 Green Street 320 Green Street Forestry Sciences Laboratory 320 Green Street , Athens, GA 30602 United States AU: Bhoi, S
EM: sbhoi@gmu.edu
AF: CEOSR/SCS/George Mason University, 4400 University Drive, MS 5C3, Fairfax, VA 22030 United States
AU: Wang, W
AF: CEOSR/SCS/George Mason University, 4400 University Drive, MS 5C3, Fairfax, VA 22030 United States
AB: Wildfire is a major natural disaster threatening ecosystem, human life and property in the United States. Efforts have been made in the past years in monitoring and understanding wildfire-ecosystem interactions. Satellites Remote Sensing (RS) measurements can provide nearly global coverage of the Earth with high spatial resolutions and frequent repetition rates. Satellite products such as the Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI) and Leaf Area Index (LAI) from the Advanced Very High Resolution Radiometer (AVHRR) and the Moderate Resolution Imaging Spectroradiometer (MODIS) have shown close relationships between burned areas and ecosystem changes. Thus, satellite RS has emerged as one of the important techniques for wildfire-ecosystem interaction research. MODIS NDVI, EVI and LAI datasets are analyzed. This paper illustrates the impacts of wildfire on ecosystem by applying the MODIS measurements to the 2002 Okefenokee fire. The preliminary results shown EVI and LAI are better than NDVI for assessing Ecosystem Effects of Wildfire in this region. Key words: wildfire, ecosystem, MODIS, and satellite remote sensing.
DE: 6062 Satellites
DE: 1640 Remote sensing
DE: 0400 Biogeosciences
DE: 0840 Evaluation and assessment
SC: Biogeosciences [B]
MN: 2004 AGU Fall Meeting