National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The comparison of ETo estimates was done based on the weekly averages of PET using correlation coefficient and regression methods through different empirical methods namely Modified Penman, Blaney criddle, Christiansen, Thornthwaite, OpenPan, FAO penman method by using daily weather data for the period 1981-2012 (32 years) has collected for three stations of Chhatisgarh state. Atambikapur the highest correlation coefficient between FAO penman and Modified penman method is 0.998 and lowest in between Christiansen and Blaney criddle method is 0.918.At Jagdalpur and Raipur also having the highest correlation coefficient between FAO Penman and Modified Penman method is 0.999 and lowest correlation coefficient I in between Christiansen and Turc method is 0.85 or 0.84.Regarding regression with open Pan evaporation highest R2 values are Modified penman and Christiansen methods.
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