Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/39060
Title: Análise espacial da influencia dos elementos meteorológicos sobre a evapotranspiracao de referencia em Minas Gerais
Other Titles: Spatial analysis of the influence of meteorological elements on the reference evapotranspiration in the State of Minas Gerais, Brazil
Keywords: Meteorologia
Variabilidade espaço-temporal
Meteorology
Spatial-temporal variability
Issue Date: 2010
Publisher: Universidade Federal de Campina Grande
Citation: LEMOS FILHO, L. C. A. et al. Análise espacial da influencia dos elementos meteorológicos sobre a evapotranspiracao de referencia em Minas Gerais. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 14, n. 12, p. 1294-1303, 2010.
Abstract: In general the methodologies most used and recommended to estimate crop water requirements are based on meteorological data. The aim of this study was to evaluate the effect of some meteorological elements on reference evapotrasnpiration (ET0) estimate in Minas Gerais State, Brazil. The values of ET0 were estimated daily by the Penman-Monteith-FAO method, using daily data over a period of 17 years. The influence of each meteorological element on ET0 values was determined by sensitivity tests and interpolated map analysis for each element under study. The results showed that the reference evapotranspiration is very variable in Minas Gerais, with annual average values between 2.51 to 4.59 mm d-1. The sensitivity analysis showed a high variation effect of meteorological elements in ET0 in Minas Gerais, with high sensitivity to vapor pressure deficit, wind speed and radiation. The radiation was the most important meteorological element, with the highest influence in ET0.
URI: http://repositorio.ufla.br/jspui/handle/1/39060
Appears in Collections:DEG - Artigos publicados em periódicos



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