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MODIS‐derived visible atmospherically resistant index for monitoring chaparral moisture content

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Time series of normalized difference indices (NDIs) derived from MODIS surface reflectance data provide potentially useful information for monitoring fuel moisture content (FMC) for fire risk assessment. The visible atmospherically resistant index (VARI) and normalized difference water index (NDWI) were compared for monitoring live FMC of chaparral shrublands. Regression coefficients are encouraging given disparate spatial resolutions of ground‐based FMC measurements and MODIS‐derived NDIs. VARI exhibited greater temporal co‐variability (0.79> r 2

Document Type: Research Article


Affiliations: Department of Geography, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182‐4493

Publication date: September 10, 2005

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