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Drought Assessment in Arid Regions Using Vegetation Indices - a Case Study of "Shirkooh of Yazd" in Central Iran

Mohsen Ebrahimi Khusfi; Roshanak Darvishzade; Aliakbar Matkan; Davood Ashourloo

Volume 7, Issue 4 , July 2010

Abstract
  Since soil moisture and vegetation cover are the most important parameters effecting drought, analyses of the vegetation fraction and soil spectral signature, especially in the red and infra red bands, are essential in drought estimation. In this study, the Perpendicular Drought Index (PDI), Modified ...  Read More