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Identification of Best Potential Evapotranspiration model for Estimating Reference Evapotranspiration for sub temperate climate: Almora, Uttarakhand CIGR Journal
KUMAR, UTKARSH; Panday, Suresh Chandra; Kumar, Jitendra; Parihar, Manoj; Meena, Vijay Singh; Bisht, Jaideep Kumar; Kant, Lakshmi.
FAO-56-Penman-Monteith is regarded as a standard method worldwide for calculation of ET. However due to requirement of detailed meteorological data, its application is often constrained under data scarce region. Under such situation, a suitable alternative method with equivalent efficacy to that FAO56PM needs to be identified. The present study is undertaken to evaluate 13 different ETo model from temperate, radiation and combined method using monthly long-term (1985-2010) meteorological data from VPKAS, Experimental farm located in mid Himalaya region of Uttarakhand state of India with respect to standard (FAO56PM) method. The result revealed that combination method, Penmen-Monteith was found most suitable (r=1, RMSE= 0.04 mm/ month ) followed by 1972...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Potential evapotranspiration; Radiation-based methods; Temperature-based methods; Mid Himalayan region.
Ano: 2022 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7333
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Potential evapotranspiration estimates for northeast Brazil using GOES-8 data AGRIAMBI
Bastos,Eduardo J. de Brito; Souza,Jaidete M. de; Rao,Tantravahi V. Ramana.
In this study, an empirical method proposed by Caselles et al. (1992a) is utilized to determine the potential evapotranspiration (ETP) on a regional scale. This method uses the global solar radiation data retrieved by the global radiation model GL1.0, which in turn utilizes data from the visible channel of the GOES-8 satellite. This method is applied to the northeast region of Brazil, using daily and monthly climatological data as the ground truth information to estimate the ETP and the estimated daily ETP data for September, 1997. The methodology involved three steps: 1) to perform a spatial regionalization of the ETP using the method of Ward, which is available in the Statistical Package for the Social Sciences (SPSS); 2) to obtain the correlation...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Northeast-Brazil; Potential evapotranspiration; Meteorological satellite.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662000000300008
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