2009
DOI: 10.1016/j.enconman.2008.07.005
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Validation of the existing models for estimating global solar radiation over Egypt

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Cited by 65 publications
(30 citation statements)
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“…This result also validates the background of this paper methodology by applying numerous models developed from Nigeria as global solar radiation solely depends on the local climate and geographical information in a give location. The result agrees favourably with report of several investigators across the globe that since most existing models are empirical in nature, they are likely to be specific to the atmospheric conditions under which they were developed, and thus may either over or underestimate measured data at other sites [73][74][75][76]. …”
Section: Sunshine Fractionsupporting
confidence: 81%
“…This result also validates the background of this paper methodology by applying numerous models developed from Nigeria as global solar radiation solely depends on the local climate and geographical information in a give location. The result agrees favourably with report of several investigators across the globe that since most existing models are empirical in nature, they are likely to be specific to the atmospheric conditions under which they were developed, and thus may either over or underestimate measured data at other sites [73][74][75][76]. …”
Section: Sunshine Fractionsupporting
confidence: 81%
“…Entretanto, como em muitos outros países a medida direta da radiação solar ainda é escassa quando comparada com as medições de temperatura e precipitação. Esta situação reflete, provavelmente, não apenas o custo de aquisição do equipamento mas também os problemas de manutenção e calibração dos equipamentos que medem a radiação solar (Liu et al, 2009;Robaa, 2009). Mesmo nas estações que apresentam o equipamento para sua medição, existem dias nos quais os valores são perdidos ou apresentam inconsistência em função de falhas operacionais (Hunt et al, 1998).…”
Section: Introductionunclassified
“…Além disso, influencia outros processos ecológicos e ambientais relacionados à temperatura do ar e do solo, afetando a transferência de calor por meio da evaporação e transpiração (SPOKAS & FORCELLA, 2006 (LIU et al, 2009;ROBAA, 2009;WEISS & HAYS, 2004). Assim, dados de radiação solar não são facilmente disponíveis como os dados de temperatura e precipitação nas estações meteorológicas (HUNT et al, 1998;RIVINGTON et al, 2005).…”
Section: Introductionunclassified