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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido; Embrapa Unidades Centrais. |
Data corrente: |
09/07/1996 |
Data da última atualização: |
04/06/1998 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
REDDY, S. J.; AMORIM NETO, M. da S. |
Afiliação: |
CPATSA. |
Título: |
A method for the estimation of potential evapotranspiration and/or open pan evaporation over Brazil. |
Ano de publicação: |
1984 |
Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.19, n.3, p. 247-267, mar. 1984. |
Idioma: |
Inglês |
Conteúdo: |
This paper presents a simple regression model to estimate potential evapotranspiration and/or open pan evaporation data for a wide network of stations in Brazil. The model uses the readily available data sets like geocoordinates (latitude) and precipitation as inputs. Potential evapotranspiration presents a high correlation with the precipitation during summer months and with latitude during winter months. It also shows association with longitude and elevation; the magnitude of variation appears to be very small. This model gave a R2 varying from 0.460 to 0.902 for different months. The model is also extended to weekly periods of individual years ant tested with the open pan evaporation data of Bebedouro and Mandacaru. The agreement between observed and predicted values appears to be good. |
Palavras-Chave: |
Climatic; Coordenadas geograficas; Evapotranspiracao potential; Geocoordinates; Potential evapotranspiration; Precipitacao; Precipitation. |
Thesagro: |
Clima; Evaporação; Evapotranspiração; Meteorologia. |
Thesaurus Nal: |
evaporation; evapotranspiration; meteorology. |
Categoria do assunto: |
-- P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/144486/1/7910-1.pdf
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Marc: |
LEADER 01689naa a2200301 a 4500 001 1104686 005 1998-06-04 008 1984 bl uuuu u00u1 u #d 100 1 $aREDDY, S. J. 245 $aA method for the estimation of potential evapotranspiration and/or open pan evaporation over Brazil. 260 $c1984 520 $aThis paper presents a simple regression model to estimate potential evapotranspiration and/or open pan evaporation data for a wide network of stations in Brazil. The model uses the readily available data sets like geocoordinates (latitude) and precipitation as inputs. Potential evapotranspiration presents a high correlation with the precipitation during summer months and with latitude during winter months. It also shows association with longitude and elevation; the magnitude of variation appears to be very small. This model gave a R2 varying from 0.460 to 0.902 for different months. The model is also extended to weekly periods of individual years ant tested with the open pan evaporation data of Bebedouro and Mandacaru. The agreement between observed and predicted values appears to be good. 650 $aevaporation 650 $aevapotranspiration 650 $ameteorology 650 $aClima 650 $aEvaporação 650 $aEvapotranspiração 650 $aMeteorologia 653 $aClimatic 653 $aCoordenadas geograficas 653 $aEvapotranspiracao potential 653 $aGeocoordinates 653 $aPotential evapotranspiration 653 $aPrecipitacao 653 $aPrecipitation 700 1 $aAMORIM NETO, M. da S. 773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.19, n.3, p. 247-267, mar. 1984.
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Embrapa Unidades Centrais (AI-SEDE) |
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