نتایج جستجو برای: thornthwaite
تعداد نتایج: 171 فیلتر نتایج به سال:
Abstract. Thornthwaite's formula is globally an optimum candidate for large-scale applications of potential evapotranspiration and aridity assessment at different climates landscapes since it has lower data requirements compared to other methods especially from the ASCE-standardized reference (formerly FAO-56), which most data-demanding method commonly used as benchmark method. The aim study de...
Global warming and intense human activity are altering the net primary productivity (NPP) of vegetation in arid semi-arid regions where ecosystems sensitive to climate change, including Mongolian Plateau (MP). To deepen understanding dynamics its driving factors on MP, actual NPP (ANPP) MP from 2000 2019 was estimated based a modified Carnegie–Ames–Stanford Approach (CASA) model. The Thornthwai...
O conhecimento das características climáticas bacias hidrográficas, especialmente quanto à distribuição temporal e espacial da pluviosidade, umidade relativa do ar temperaturas máximas, mínimas médias ar, os quais devem oferecer importantes subsídios gestão dos recursos hídricos a agropecuária. A irregular pluviosidade indica instabilidade na entrada de água no sistema hidrológico, exercendo co...
monthly discharge is one of the most important factors considered in designs and hydrological works. some watersheds are not equipped with needed hydrometric equipment. in such a case average monthly discharge could be estimated from regional monthly water balance models of representative watersheds. in this study, thornthwaite & mather (tm) model were used in the pishkouh watershed in arid...
Potential evapotranspiration (PET) is a key parameter for calculating drought monitoring index that generally difficult to obtain. In addition, PET has low spatial resolution and can only be obtained at site-based point. Therefore, retrieving with high precision, resolution, less meteorological data becomes the focus of this paper. paper, high-precision high-spatial-resolution (HDM) model was e...
در این تحقیق میزان تبخیر سالانه و ماهانه از دریاچه سد ساوه (الغدیر) توسط تعدادی از روش ها از قبیل روش بیلان آبی و استفاده از تشتک تبخیر، روابط تجربی، روابط نوع penman، روش بیلان انرژی (breb) و مدل crle به مدت 13 سال (1386-1374) برآورد گردیده است. مقادیر تبخیر سالانه روش های مختلف مورد استفاده از مقدار حداقل 145 سانتی متر برای روش debruin-keijman تا مقدار حداکثر 175 سانتی متر برای روش crle آب ه...
در این تحقیق میزان تبخیر سالانه و ماهانه از دریاچه سد ساوه (الغدیر) توسط تعدادی از روشها از قبیل روش بیلان آبی و استفاده از تشتک تبخیر، روابط تجربی، روابط نوع Penman، روش بیلان انرژی (BREB) و مدل CRLE به مدت 13 سال (1386-1374) برآورد گردیده است. مقادیر تبخیر سالانه روشهای مختلف مورد استفاده از مقدار حداقل 145 سانتیمتر برای روش Debruin-Keijman تا مقدار حداکثر 175 سانتیمتر برای روش CRLE آبه...
Drought severity still remains a serious concern across Sub-Saharan Africa (SSA) due to its destructive impact on multiple sectors of society. In this study, the interannual variability and trends in changes self-calibrating Palmer Severity Index (scPDSI) based Penman–Monteith (scPDSIPM) Thornthwaite (scPDSITH) methods for measuring potential evapotranspiration (PET), precipitation (P), normali...
Perubahan iklim berpotensi merusak infrastruktur termasuk struktur perkerasan kaku. Perkerasan yang dibangun pada tanah dasar eskpansif rentan terhadap kerusakan, pumping. Penelitian ini bertujuan menganalisis potensi dampak perubahan Data suhu udara dan curah hujan tahunan rerata di Provinsi Daerah Istimewa Yogyakarta adalah 26,71C 200,13 mm. Proyeksi Bank Dunia menyebutkan bahwa periode 2080...
Objetivou-se determinar modelos de estimativa da evapotranspiração referência (ETo) para a região sul do Triângulo Mineiro. Para calcular as estimativas ETo foram utilizados dados diários INMET Frutal, Conceição das Alagoas e Uberaba-MG. Foram testados seis assim compará-los com o modelo Penman Monteith (PM), que foi considerado padrão. Após cálculo diária, aplicada análise regressão, utilizand...
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