Estimation of evapotranspiration from pan-evaporation values: A study over the maize field in Bangalore

Authors

  • GS GANESAN A. E. T. Unit, G. K. V. K., Bangalore
  • HR AHOBALARAO A. E. T. Unit, G. K. V. K., Bangalore

DOI:

https://doi.org/10.54302/mausam.v37i4.2593

Abstract

A formula to estimate the values of evapotranspiration (ET) from the available values of C pan-evaporation (Ep), for the maize crops (Deccan Hybrid variety) grown in Bangalore is given. The formula brings out the degree of dependance of the ratio ET/Ep on the area of the plants. The effect of increase of area of plants on the value ET/Ep is two-fold : (1) to increase the value of ET and thereby that of ET/Ep and (2) to modify the local meteorological conditions In such a way as to Inhibit evaporation processes compared with the  conditions in an open space and thereby reduce ET/Ep. The resulting value of ET/Ep is thus a compromise between these two factors. The necessary correction factors arising out of this compromise, appropriate to each  phenological stage are determined and incorporated in the formula presented.

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Published

01-10-1986

How to Cite

[1]
G. GANESAN and H. . AHOBALARAO, “Estimation of evapotranspiration from pan-evaporation values: A study over the maize field in Bangalore”, MAUSAM, vol. 37, no. 4, pp. 525–528, Oct. 1986.

Issue

Vol. 37 No. 4 (1986): MAUSAM

Section

Shorter Contribution

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