Standardized precipitation index based on pearson type III distribution
نویسندگان
چکیده
منابع مشابه
modification of standardized precipitation index (spi) based on relevant probability distribution function
abstract spi is based on fitting a gamma distribution to precipitation amounts in selected periods. based on current research, the gamma distribution may not be fitted to annual precipitation of some regions. in order to evaluate this subject, annual precipitation have been used during 1958- 2007 at 11 synoptic stations in iran. in first step, values of spi and frequency of different classes of...
متن کاملZoning Droughts By Standardized Precipitation Index in Esfahan Province (Iran)
The Standardized Precipitation Index (SPI) has become a popular measure of drought across the globe. In this study, Standardized Precipitation Index (SPI) was used in annual period of time to survey on drought. Also, in order to zonation frequency of drought, geographic information system (GIS) software and Kriging method used for extracting dry areas. The zoning maps show most severe drought i...
متن کاملZoning Droughts By Standardized Precipitation Index in Esfahan Province (Iran)
The Standardized Precipitation Index (SPI) has become a popular measure of drought across the globe. In this study, Standardized Precipitation Index (SPI) was used in annual period of time to survey on drought. Also, in order to zonation frequency of drought, geographic information system (GIS) software and Kriging method used for extracting dry areas. The zoning maps show most severe drought i...
متن کاملZoning Droughts By Standardized Precipitation Index in Esfahan Province (Iran)
The Standardized Precipitation Index (SPI) has become a popular measure of drought across the globe. In this study, Standardized Precipitation Index (SPI) was used in annual period of time to survey on drought. Also, in order to zonation frequency of drought, geographic information system (GIS) software and Kriging method used for extracting dry areas. The zoning maps show most severe drought i...
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ژورنال
عنوان ژورنال: Revista Brasileira de Meteorologia
سال: 2011
ISSN: 0102-7786
DOI: 10.1590/s0102-77862011000200001