2014 Fall Meeting
Section: Hydrology
Session: Hydroclimatic Extremes: Drought II
Title: Anatomy of A Local Scale Drought
Authors:
Das, N N, Jet Propulsion Lab, Pasadena, CA, United States
Mishra, A K, Clemson University, Clemson, SC, United States
Ines, A V M, International Research Institute for Climate and Society, Columbia University, Palisades, NY, United States
Khedun, P, Texas A & M University, College Station, TX, United States
Abstract:
Drought is of global concern for society but it originates as a local problem. It has a significant impact on water quantity and quality and influences food, water, and energy security. The consequences of drought vary in space and time, from the local scale (e.g. county level) to regional scale (e.g. state or country level) to global scale. This study addresses a local-scale agricultural drought anatomy in Story County in Iowa, USA. This complex problem was evaluated using assimilated AMSR-E soil moisture and MODIS-LAI data into a crop model to generate surface and sub-surface drought indices to explore the anatomy of an agricultural drought. It was found that both surface and subsurface droughts have an impact on crop yields, albeit with different magnitudes, however, the total water available in the soil profile seemed to have a greater impact on the yield. We envisaged that the results of this study will enhance our understanding of agricultural droughts in different parts of the world.
Cite as: Author(s) (2014), Title, Abstract H31M-06 presented at 2014 Fall Meeting, AGU, San Francisco, Calif., 15-19 Dec.
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