نتایج جستجو برای: standardized precipitation index
تعداد نتایج: 516279 فیلتر نتایج به سال:
بررسی و مقایسه دوره های خشکسالی با استفاده از نمایه های مبتنی بر بارش در برخی مناطق مرکزی و غرب کشور
In this study, to evaluate and comparing of drought and wet occurrences, Annual rainfall data related to a 60-year period were used for Kermanshah, Kordestan, Kerman and Yazd provinces. Among the different drought indices, the precipitation-based indices such as, Standardized Precipitation Index (SPI), Percent of Normal Precipitation Index (PNPI), Z-Score Index (ZSI) and Nitzche model were used...
Drought Assessment using Standardized Precipitation Index and Normalized Difference Vegetation Index
Drought, as one of the most complicated natural events, causes many direct and indirect damages each year. Hence, single variable identification and monitoring of drought may not be appropriate enough for decision-making and management. In this study, in order to monitor the meteorological-agricultural drought in Chaharmahal and Bakhtiari province, Multivariate Standardized Drought Index (MSDI)...
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