Volume 9, Issue 1 (2005)
MJSP 2005, 9(1): 197-215 |
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Morid S, Moghaddasi M. Monitoring the Drought During 1998 to 2000 in Tehran Province, Using EDI, SPI, DI Indices and Geographical Information System. MJSP 2005; 9 (1) :197-215
URL: http://hsmsp.modares.ac.ir/article-21-6595-en.html
URL: http://hsmsp.modares.ac.ir/article-21-6595-en.html
1- Assistant Professor, Faculty of Agriculture, Tarbiat Modarres University
2- Ph.D. Student, Faculty of Agriculture, Tarbiat Modarres University
2- Ph.D. Student, Faculty of Agriculture, Tarbiat Modarres University
Abstract: (6232 Views)
Tehran province experienced one of the severest drought status during 1998 to 2000. This drought can be assessed by drought indices. Drought indices are quantitative expression of this disaster that make its spatial and temporal evaluations possible. In this research work three indices including EDI, SPI and DI have been used to develop monthly drought maps for the aforementioned period, using the information of 43 meteorological stations and geographical information system (GIS). The results show that DI has very exaggerated responses to rainfall, especially to the summer rainfall. Also SPI is not responsive enough to rainfall deficiencies. Morover, it frequently detected normal situation for this period. But, EDI is able to response properly and shows good temporal and spatial consistency in drought detection.
Keywords: Geographic information system, Drought Monitoring System, Deciles Index, Standardized Precipitation Index, Effective Drought Index, Tehran Province, The 1998-2000 Drought
Received: 2004/05/15 | Accepted: 2005/03/7 | Published: 2010/04/27
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