نتایج جستجو برای: hargreaves
تعداد نتایج: 505 فیلتر نتایج به سال:
Evaporation is a fundamental parameter in the hydrological cycle. This study examines the performance of M5model tree and artificial neural network (ANN) models in estimating potential evapotranspiration calculated byPenman- Monteith and Hargreaves- Samani equations. Daily weather data from two meteorological stations in asemi-arid climate of Iran, namely Kerman and Zahedan, were collected duri...
In 2019, Learning Developers at Lancaster University were awarded funding by ALDinHE to conduct a small project into how students read (Hargreaves et al., 2022a). We explored students’ perspectives and practices around reading academic texts in digital format. analysed manage their reading, they interact engage with on-screen, what influences choices related text One output of this is an intera...
[1] We investigate the relationship between the Last Glacial Maximum (LGM) and climate sensitivity across the PMIP2 multi-model ensemble of GCMs, and find a correlation between tropical temperature and climate sensitivity which is statistically significant and physically plausible. We use this relationship, together with the LGM temperature reconstruction of Annan and Hargreaves (2012), to gene...
this paper reports the results of using three empirical methods (makkink, priestley-taylor and hargreaves) for estimating the reference evapotranspiration (et0) in the semi-arid region of tensift al haouz, marrakech (center of morocco). the penman-monteith equation, standardized by the food and agriculture organization (fao-pm), is used to evaluate the three empirical methods. the obtained et0 ...
El trabajo se desarrolló con el objetivo de comparar los valores evapotranspiración obtenidos a partir cuatro métodos indirectos empÃricos en localidades interés agrÃcola la provincia HolguÃn. Fueron utilizados datos medios mensuales las estaciones meteorológicas La JÃquima, Guaro, Pinares Mayarà y Velasco. Los aplicados fueron Hargreaves, Hargreaves Samani, Thornthwaite Blaney-Criddl...
Evaluating potential evapotranspiration plays an important role in planning, designing, and managing water resources, especially in arid and semi arid zones. The aim of the present research is considering spatio-temporal changes of different potential evapotranspiration methods such as Thornthwaite, Hargreaves, and Blaney-Criddle in the Maharlou Watershed, Fars province. So, yearly statistics o...
Global solar radiation (Rs( on a horizontal surface in the estimation of evapotranspiration of plants and hydrology studies is an important factor. Average daily global solar radiation on a horizontal surface was estimated by artificial neural networks (ANNs) and five empirical models including FAO (No.56), Hargreaves-Samani, Mahmood-Hubard, Bahel and Annandale. The weather data was selected fr...
Evapotranspiration process is a key element in hydrological simulation of water supply, rainfall-runoff models, infiltration calculations and drought prediction models. Recently, several equations were used for estimating annual, monthly and daily evapotranspiration in the world. In this study, the potential evapotranspiration of Taleghan watershed was estimated by three methods in the SWAT mod...
The proposed method for calculation of potential evapotranspiration is Penman-Monteith FAO method, but there are other methods that require less meteorological data but estimates close to the FAO Penman-Monteith method in different climatic conditions. Performance evaluation of these methods on the same basis is prerequisite for selecting an alternative approach in accordance with available da...
C. Q. Li, W. Chen, J. K. Rosenberg, P. J. Beatty, A. C. Brau, R. X. Kijowski, B. A. Hargreaves, R. F. Busse, and G. E. Gold Radiology, Stanford University, Stanford, CA, United States, Global Applied Science Laboratory, GE Healthcare, Menlo Park, CA, United States, Radiology, University of Wisconsin, Madison, WI, United States, Global Applied Science Laboratory, GE Healthcare, Madison, WI, Unit...
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