Comparison of methods for estimating reference evapotranspiration (ETo) for Rahuri region

Authors

  • P. B. JADHAV Department of Irrigation and Drainage Engineering, Mahatma Phule Krishi Vidyapeeth, Rahuri-413 722 (MS)
  • S. A. KADAM Department of Irrigation and Drainage Engineering, Mahatma Phule Krishi Vidyapeeth, Rahuri-413 722 (MS)
  • S. D. GORANTIWAR Department of Irrigation and Drainage Engineering, Mahatma Phule Krishi Vidyapeeth, Rahuri-413 722 (MS)

DOI:

https://doi.org/10.54386/jam.v17i2.1007

Keywords:

Reference evapotranspiration, PMM, MPM, HSM, FPEM, BCM, FRM

Abstract

Penman Monteith (FAO56-PMM), Modified Penman FAO-24 (MPM), Hargreaves-Samani (HSM), FAO-24 Pan Evaporation (FPEM), Blaney-Criddle (BCM) and FAO Radiation (FRM) methods were used for estimation of ETo for Rahuri region. The Penman Monteith method was considered as the standard of comparison for evaluating the other five methods. The ETo values estimated by PMM were correlated with ETo values estimated by other five methods. The good correlation was found between the ET o values estimated by MPM, HSM and FRM. The coefficient of determination was high for MPM (R 2=0.99), HSM (R2=0.97) and FRM (R2=0.93) and therefore found to be more suitable in the absence of adequate climate data for the use of PMM for this climatic region.

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Published

01-12-2015

How to Cite

P. B. JADHAV, S. A. KADAM, & S. D. GORANTIWAR. (2015). Comparison of methods for estimating reference evapotranspiration (ETo) for Rahuri region. Journal of Agrometeorology, 17(2), 204–207. https://doi.org/10.54386/jam.v17i2.1007

Issue

Vol. 17 No. 2 (2015): December

Section

Research Paper

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