Scientific Investigations Report 2006–5043

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5043

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Table 6. Comparison of total evapotranspiration computed with modified daily evapotranspiration coefficients and total evapotranspiration estimated with Bowen-ratio method for the saltcedar (SC), mixed- vegetation (MV), and arrowweed (AW) stations.

Period Evapotranspiration (feet)   Error
Computed Bowen-ratio   Mean
bias		 Root mean
square
SC station
June 2002– May 2003 3.67 3.54 0.01 0.04
June 2003– May 2004 3.65 3.56 .01 .04
Total: 7.32 7.10
MV station
June 2002– May 2003 2.70 2.70 0.00 0.03
June 2003– May 2004 2.52 2.32 .02 .04
Total: 5.22 5.02
AW station
January– December 2003 2.65 2.36 0.02 0.04
January–May 2004 .97 .96 .00 .02
Total: 3.62 3.32

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