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Autocorrelação de erro e regressão linear para melhoria de estimativas de evapotranspiração por temperatura
- Source :
- Repositório Institucional de Geociências-RIGEO, Companhia de Pesquisa de Recursos Minerais (CPRM), instacron:CPRM
- Publication Year :
- 2012
- Publisher :
- Blackwell Publishing, 2012.
-
Abstract
- CPRM USP Estimates of evapotranspiration on a local scale is important information for agricultural and hydrological practices. However, equations to estimate potential evapotranspiration based only on temperature data, which are simple to use, are usually less trustworthy than the Food and Agriculture Organization (FAO)- Penman-Monteith standard method. The present work describes two correction procedures for potential evapotranspiration estimates by temperature, making the results more reliable. Initially, the standard FAO- Penman-Monteith method was evaluated with a complete climatologic data set for the period between 2002 and 2006. Then temperature-based estimates by Camargo and Jensen-Haise methods have been adjusted by error autocorrelation evaluated in biweekly and monthly periods. In a second adjustment, simple linear regression was applied. The adjusted equations have been validated with climatic data available for the Year 2001. Both proposed methodologies showed good agreement with the standard method indicating that the methodology can be used for local potential evapotranspiration estimates.
- Subjects :
- CLIMATOLOGIA
EVAPOTRANSPIRATION
SATURAÇÃO DE VAPOR DA ÁGUA
CAMARGO
CONSTANTE PSICROMÉTRICA
EVAPOTRANSPIRATION ON A LOCAL SCALE
EVAPOTRANSPIRAÇÃO
EVAPORAÇÃO
ESTIMATION METHODS ON RADIATION
BALANÇO HÍDRICO
EVAPOTRANSPIRAÇÃO DE REFERÊNCIA DE CAMARGO
JENSEN-HAISE
HYDROLOGY
POTENTIAL EVAPOTRANSPIRATION ESTIMATES
FOOD AND AGRICULTURE ORGANIZATION - FAO
TEMPERATURA DO AR
FAO-PENMAN-MONTEITH
HIDROLOGIA
ORGANIZAÇÃO DAS NAÇÕES UNIDAS PARA ALIMENTAÇÃO E AGRICULTURA
PENMAN-MONTEITH
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Repositório Institucional de Geociências-RIGEO, Companhia de Pesquisa de Recursos Minerais (CPRM), instacron:CPRM
- Accession number :
- edsair.od......3056..1841b8d823321be6fa6b3960b058b50b