نتایج جستجو برای: شاخص pdsi

تعداد نتایج: 74708  

Journal: :Ecosphere 2022

Abstract Managers typically estimate wildlife abundance using surveys within a timeframe that favors increased detectability; however, the ability to account for probabilities of inclusion, detection, and/or presence given sampling area is often limited. Cranes provide good opportunity research count accuracy because they are large, conspicuous, and congregate during part year, on staging areas...

2004
Ian J. Cottingham Steve Goddard Shifeng Zhang X. Wu K. Lu A. Rutledge William J. Waltman

The National Agricultural Decision Support System (NADSS) is a web based geospatial decision support system used to aid producers and decision makers in analyzing and effectively mitigating the effects of drought. The NADSS application is unique in its implementation, containing web-based implementations of commonly utilized drought indices including the Newhall Simulation Model (NSM), Palmer D...

Journal: :Water 2023

The devastating socioeconomic impacts of recent droughts have intensified the need for improved drought monitoring in South Africa (SA). This study has shown that not all indices can be universally applicable at regions worldwide, and there is no single index represent aspects droughts. aim this was to review performance applicability Palmer severity (PDSI), surface water supply (SWSI), vegetat...

Journal: :Forest Ecology and Management 2021

Wildfire predictions provide useful information for fire management planning and implementation. Temperature precipitation have been used as the primary meteorological predictors wildfires in China. This study is to improve prediction skills of long-range (monthly, seasonal, annual) China by identifying other important predictors. Provincial data during 1999–2020 were calculate correlations bet...

Journal: :Acta Biologica Marisiensis 2021

Abstract This paper focuses on the environment of Ethiopia, a country highly sensitive to droughts severely affecting vegetation. Vegetation monitoring Ethiopian Highlands requires visualization environmental parameters assess negatively influencing agricultural sustainable management crops. Therefore, this study presented mapping several climate and variables including Palmer Drought Severity ...

Journal: :Remote Sensing 2022

Drought can cause severe agricultural economic losses and hinder social development. To manage drought, the process of drought events needs to be described with help an effective indicator. As a comprehensive variable, soil moisture is essential indicator for describing drought. In this work, extreme in southwest China were analysed by Global Land Data Assimilation System (GLDAS) root zone data...

در این مقاله، همبستگی بین چند شاخص اقلیمی با پهنای دوایر سالانه درختان بلوط مازو در منطقه جوانرود استان کرمانشاه مورد بررسی قرار گرفت. داده‌های اقلیمی مورد استفاده در این مطالعه از ایستگاه‌های هواشناسی منطقه (دما، بارندگی و شاخص بارندگی استاندارد (SPI)) و شبکه جهانی نقاط (دما، بارندگی و شاخص شدت خشکسالی پالمر (PDSI)) مربوط به سازمان ملی اقیانوسی و جوی ایالات متحده در قاره‌های آسیا، اروپا، آفریق...

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