نتایج جستجو برای: and recently introduced standardized precipitation

تعداد نتایج: 16852963  

The purpose of this study is analyzing the trend of drought characteristics in Hamedan Province In this regard, the corrected standardized precipitation index (SPImod) was calculated based on the monthly precipitation data from 11 synoptic and rain gauge stations during the period of 1985-2013. Drought characteristics, including severity, duration and interarrival time were defined and extracte...

Journal: :مرتع و آبخیزداری 0
سمانه محمدی مقدم کارشناس ارشد مرتع داری، دانشکدة منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد ابوالفضل مساعدی استاد دانشکدة منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد محمد جنگجو دانشیار دانشکدة منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد منصور مصداقی استاد مدعو، دانشکدة منابع طبیعی و محیط زیست، دانشگاه فردوسی مشهد

although precipitation is the most important factor which effects rangeland production, but there is little information on the relationship between production and the interactions of climatic factors and specially drought indices. .in this research, the relation between production and climatic factors of rainfall, temperature, evapo- transpiration, and as well as drought indices of standardized...

2014
Moumita Palchaudhuri Sujata Biswas

Drought is universally acknowledged as a phenomenon associated with scarcity of water. The Standardized Precipitation Index (SPI) expresses the actual rainfall as standardized departure from rainfall probability distribution function. In this study severity and spatial pattern of meteorological drought was analyzed in the Puruliya District, West Bengal, India using multi-temporal SPI. Daily gri...

2013
Caroline D. M. Witjes Susanna M. van Aalten Ewout W. Steyerberg Gerard J. J. M. Borsboom Robert A. de Man Cornelis Verhoef Jan N. M. IJzermans

PURPOSE Early detection of hepatocellular carcinoma (HCC) is essential for improved prognosis and long-term survival. To date, screening for HCC depends on serological testing (alpha-fetoprotein, AFP) and imaging (ultrasonography), both of which are not highly sensitive. A meta-analysis was performed to discuss recent developments in biomarkers that may be effective in screening for HCC. METH...

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