Date of Award:

5-1968

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Biological and Irrigation Engineering

Committee Chair(s)

Jerald E. Christiansen

Committee

Jerald E. Christiansen

Committee

A. Alvin Bishop

Committee

Jack Keller

Abstract

Equations, tables, and graphs for estimating evaporation from sheltered evaporimeters were developed, based on data from 20 stations in Colombia.

Computer programs and plottings were the basic tools to work out the equations. The form of the simplified final equation is

Ev = kCVPDCT

in which

    • Ev is the evaporation in millimeters per day
    • K is a constant
    • CVPD is the vapor pressure deficit coefficient
    • CT is the temperature coefficient

Statistical parameters were determined to compare the measured evaporation with the Christiansen-Guillen formula and the newly developed formulas.

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