نتایج جستجو برای: thornthwaite
تعداد نتایج: 171 فیلتر نتایج به سال:
PSD (particle size distribution) is a key factor affecting soil hydro-physical properties (e.g. hydraulic conductivity and water retention), which makes its determination essential. Climate change increases the importance of retention permeability as extreme weather events can severely impair supply drought-sensitive vegetation. The amount in soils expected to decrease. modified Thornthwaite mo...
This study aims to determine the value of surplus and water deviation agricultural land in Namlea District, Buru Regency. The was conducted Subdistrict, Regency, Maluku Province. Materials used, questionnaires, climate data, air temperature, precipitation, humidity, solar rays 10-20 years. Tools computer equipment, writing stationery location maps. To obtain deficit used data on average amount ...
In this study, drought characteristics of Arak, Bandar Anzali, Tabriz, Tehran, Rasht, Zahedan, Shiraz and Kerman stations during the statistical period of 1956 to 2015 were studied by Reconnaissance Drought Index (RDI) and Standardized Precipitation Index. Precipitation and temperature data were needed to calculate RDI. Precipitation data was also required to estimate SPI. In this study, Drinc ...
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 cli...
Drought assessment is crucial for effective water resources management in a river basin. frequency has increased worldwide recent years due to global warming. In this paper, an attempt made assess the meteorological drought Punpun basin, India using two globally accepted indices namely, Standardized Precipitation Index (SPI) and Evapotranspiration (SPEI). The SPI SPEI at 1-, 3-, 6-, 9-, 12-mont...
Regional climate change projections for Europe agree in predicting a statistically significant warming all seasons. The most effect is its impact on water cycle through altering precipitation patterns and evapotranspiration processes at multiple scales. anticipated changes the distribution amounts together with continuously increasing temperatures may induce higher rate of consumption plants, w...
This paper examines the impacts of three different potential evapotranspiration (PET) models on drought severity and frequencies indicated by standardized precipitation index (SPEI). The precipitation-evapotranspiration is a recent approach to operational monitoring analysis severity. combines temperature data, quantifying as difference in timestep between PET. thus represents hydrological proc...
In the Mediterranean basin, edaphic salinization, sodification and alkalinization related to anthropic pressures climatic changes may hinder ecosystem sustainability. It is pertinent study mid long-term variability of these soil characteristics in face off macro agricultural system use (i.e., irrigation or rain-fed). Four irrigated soils from Caia Irrigation Perimeter (Portugal), Fluvisols, Luv...
Su kaynaklarının planlı bir şekilde kullanımı için ilk olarak mevcut su potansiyelinin belirlenmesi gerekmektedir. Bu kapsamda çeşitli yöntemlerle akış-akım hesaplamaları yapılarak havzaların potansiyelleri tespit edilmektedir. çalışmada araştırma sahası belirlenen Yukarı Yeşilırmak Havzası’nın akış/akım değerleri 3 farklı yöntemle hesaplanarak ortaya koyulmuştur. Çalışma Karadeniz Bölgesi-Orta...
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