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Abstract
In this study, the potential of Kalpana-1 derived rainfall product is assessed for drought monitoring over India at the meteorological sub-division scale. A preliminary analysis is done for the anomalous south-west monsoon season of 2009 using two drought indices: percent of normal and Standardized Precipitation Index. A considerable difference between these two indices is observed even from the same rainfall data. The severe drought condition over most parts of India during June is not well captured by Kalpana-1 derived rainfall data. Additionally, due to underestimation of orographic rainfall by Kalpana-1 derived product, the meteorological sub-divisions located over these regions showed extreme drought condition throughout the season.
Acknowledgments
The authors would like to thank the Director, Space Applications Centre, Deputy Director, EPSA, SAC and Group Director, ATDG, SAC for their kind support. Comments and suggestions from the editor, associate editors and anonymous reviewers are greatly appreciated. The Kalpana-1 data from MOSDAC, ISRO, surface rain gauge-derived homogeneous rainfall data from the Indian Institute of Tropical Meteorology, and IMD monsoon report are also thankfully acknowledged.