Comparing Bowen ratio-energy balance systems for measuring ET

Wight, J.R. and Hanson, C.L. and Wright, J.L. (1993) Comparing Bowen ratio-energy balance systems for measuring ET. pp. 953-960. In: Allen, R.G. and Neale, C.M.U. (eds.) Proc. Workshop ASCE Irrigation and Drainage Division. Management of Irrigation and Drainage Systems: Integrated perspectives. USA-UT-Park City, 1993/07/21-23.

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Abstract

Two Bowen ratio-energy balance (BREB) systems for measuring
evapotranspiration (ET) under wet and dry conditions were compared. The
study sites were an irrigated grass sod near Kimberly, Idaho and a sagebrush-grass
range site on the Reynolds Creek Experimental Watershed near Boise,
Idaho. One Bowen ratio system used positive-head, ceramic-wick, aspirated
psychrometers. The other system measured the vapor gradients with a cooled-mirror,
dew-point hygrometer. Differences in the amounts of ET measured by
the two systems were very small and of little practical consequence. The system
using a single-mirror, dew-point hygrometer was the most reliable, required the
least maintenance, and was the easiest to use.

Item Type:	Conference or Workshop Item (Paper)
NWISRL Publication Number:	0808
Subjects:	Water > Evapotranspiration Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:55
Last Modified:	01 Dec 2016 21:28
Item ID:	858
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/858