Publication Date
May 15, 2013
Author
rown, J. F.Wardlow, B. D.Tadesse, T.Hayes, M. J.Reed, B. C.
Countries :
Disaster Management Theme
-
Disaster Type
Drought
Document Type
Research Paper
Languange
English
Abstact :
The development of new tools that provide timely, detailed-spatial-resolution drought information is essential for improving drought preparedness and response. This paper presents a new method for monitoring drought-induced vegetation stress called the Vegetation Drought Response Index (VegDRI). VegDRI integrates traditional climate-based drought indicators and satellite-derived vegetation index metrics with other biophysical information to produce a 1 km map of drought conditions that can be produced in near-real time. The initial VegDRI map results for a 2002 case study conducted across seven states in the north-central United States illustrates the utility of VegDRI for improved large-area drought monitoring.
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