نتایج جستجو برای: modified penman
تعداد نتایج: 251477 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...
We present an approach for the calibration of simplified evaporation model parameters based on optimization against most complex estimation, i.e., Penman–Monteith equation. This computes from several input quantities, such as air temperature, wind speed, heat storage, net radiation etc. However, sometimes all these values are not available, therefore we must use models. Our interest in free wat...
In this paper we describe a framework for research into translation that draws on a combination of two existing and independently constructed technologies: an analysis component developed for German by the EUROTRA-D (ET-D) group of IAI and the generation component developed for English by the Penman group at ISI. We present some of the linguistic implications of the research and the promise it ...
The purpose of this study is to determine the evapotranspiration in Fars province that in many studies such as hydrological balance of water, irrigation systems design and management, simulation of product volume and management of water resources is very important. To do this, first, required data such as daily temperature, humidity, precipitation, wind speed, solar radiation pressures, solar r...
* CONTENTh / Page Cyanide Leucoencephalopathy in Rats and Observations on the Vascular and Ferment Hypothese of Demyelnatlng Diseases. C. E. Lumsden 'Positive and Negative Aspects of Hypothalamc-Disorders. B. Brouwer Disturbance of Number-form in a Case of Brain Injury. J. M. K. Spalding and 0. L. Zangwill .. .. .. .. .. .. Memory Studies in Eletric Convulsion llTeapy. Moyra Williams thePrimary...
Hidrolik tasarım süreci ve tarımsal sulama yönetiminde evapotranspirasyonun tahmini oldukça önemlidir. Bu çalışmada günlük evapotranspirasyon miktarı için ortalama sıcaklık (S), bağıl nem (N), rüzgâr hızı (R), solar radyasyon (SR) parametreleri kullanılmıştır. Penman-Monteith, FAO (Food and Agriculture Organization) tarafından önerilen standart bir metottur. metoda göre yapılmış (ET0), referans...
Cite this article: Hanna E, Penman J, Jónsson T, Bigg GR, Björnsson H, Sjúrðarson S, Hansen MA, Cappelen J, Bryant RG. 2016 Meteorological effects of the solar eclipse of 20 March 2015: analysis of UK Met Office automatic weather station data and comparison with automatic weather station data from the Faroes and Iceland. Phil. Trans. R. Soc. A 374: 20150212. http://dx.doi.org/10.1098/rsta.2015....
In this study, the Penman-Monteith methods proposed by the Food and Agriculture Organization (FAO-56) and American Society of Civil Engineers (ASCE) were used for hourly ETo estimation under the semiarid climate of Kerman, Iran. Hourly ETo estimations obtained from the proposed methods were compared with measured ETo values by using a large weighing electronic lysimeter during April to Septembe...
The paper studies the accuracy of modeling moisture transport under conditions sprinkler irrigation using evapotranspiration assessment methods that take into account soil conditions. Appropriate modifications Penman-Monteith and Priestley-Taylor models are considered. Moisture is performed Richards equation in its integer- fractional-order forms. Parameters identification by particle swarm opt...
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