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Water-Resources Investigations Report 01-4239

Ground-Water Discharge Determined from Measurements of Evapotranspiration, Other Available Hydrologic Components, and Shallow Water-Level Changes, Oasis Valley, Nye County, Nevada

Table 5. Estimated mean annual evapotranspiration (ET) and ground-water ET by ET unit from Oasis Valley discharge area, Nevada

[Mean annual values are reported to two significant digits. Abbreviation: acre-ft, acre-foot; ft/yr, feet per year]

ET-unit
identifier1

ET-unit acreage
(acres)

Average ET rate
(ft/yr)2

Mean annual ET
(acre-ft)3

Average
ground-water
ET rate
(ft/yr)4

Mean annual
ground-water ET
(acre-ft)5

OWB

1

8.6

8.6

8.1

8.1

SAV

4

8.6

34

8.1

32

DWV

40

3.9

160

3.4

140

DMV

832

3.3

2,700

2.8

2,300

DGV

340

3.2

1,100

2.7

920

SGV

1,215

2.0

2,400

1.5

1,800

MBS

102

2.6

270

2.1

210

SSV

892

1.2

1,100

.7

620

Total

3,426

2.36

7,800

1.76

6,000

1 ET unit described in table 1.
2 Average rate is that given in table 4.
3 Annual ET computed as product of ET unit acreage and average ET rate.
4 ET rate adjusted to remove water contributed by precipitation. Adjustment applied assumes an average annual precipitation of 0.5 feet.
5 Annual ET computed as product of ET unit acreage and average ET rate.
6 Rate is area weighted-average.

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