نتایج جستجو برای: standardized evapotransprecipitation index sepi

تعداد نتایج: 461681  

ژورنال: علمی شیلات ایران 2020

Yellowfin Tuna (Thunnus albacares) is one of the most important commercial and neritic fish species which has known because of ecological importance and wide distribution around the world. The aim of this study was to determine relative index of abundance for Yellowfin Tuna from 2007 to 2016, also we evaluated effect of some explanatory variables (year, month, vessel tonnage and net height) of ...

Journal: :Proceedings of the International Association of Hydrological Sciences 2015

Journal: :Atmosphere 2022

Some of the effects climate change may be related to a in patterns rainfall intensity or scarcity. Therefore, humanity is facing environmental challenges due an increase occurrence and droughts. The forecast droughts can great help when trying reduce adverse that scarcity water brings, particularly agriculture. When evaluating conditions scarcity, as well identification characterization drought...

Abdolsamadi , Hamidreza, Jazaeri , Mina , Khazaie , Salman , Shahabi , Laleh ,

Background: According to the possible role of Vascular Endothelial Growth Factor (VEGF) in the incidence of oral lichen planus lesions, it seems necessary to evaluate it in patients with Oral Lichen Planus (OLP). Objective: The present study aims to investigate the level of VEGF in patients with OLP. Methods: In this systematic review and meta-analysis study, the search was conducted in online...

Journal: :فیزیک زمین و فضا 0
رئوف مصطفی زاده استادیار گروه مرتع و آبخیزداری، دانشکده کشاورزی و منابع طبیعی، دانشگاه محقق اردبیلی محسن ذبیحی دانشجوی دکتری علوم و مهندسی آبخیزداری، عضو باشگاه پژوهشگران جوان و نخبگان، دانشگاه آزاد اسلامی واحد بجنورد

drought indices are commonly used to quantify and assess drought characteristics. the standardized precipitation index (spi), and recently introduced standardized precipitation-evapotranspiration index (spei) are considered as universal meteorological drought indices which allow comparisons of drought conditions across different climate regions. the spi captures anomalies in precipitation, wher...

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