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WRIR 01-4195:
Ground-Water Discharge Determined from Estimates of Evapotranspiration, Death Valley Regional Flow System, Nevada and California

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Table 4. Estimated evapotranspiration (ET) rates for ET units classified in major discharge areas of Death Valley regional flow system, Nevada and California

[Abbreviation: NA, not applicable]

ET-unit number 1

ET-unit 2

Estimated ET rate
(feet per year) 3

Source4

ET unit identification number zero

Area of no significant ground-water ET (unclassified)

0.0

NA

ET unit identification number one

Area of open water

8.4-8.8

1

ET unit identification number two

Area of submerged aquatic vegetation

8.1-8.5

1

ET unit identification number three

Area dominated by dense wetland vegetation

3.7-4.3

1

ET unit identification number four

Area dominated by dense meadow and forested vegetation

3.0-4.0

1, 10, 5, 6, 7, 8

ET unit identification number five

Area dominated by dense to moderately dense grassland vegetation

2.5-3.7

1, 10, 8

ET unit identification number six

Area dominated by sparse grassland vegetation

.6-2.3

1, 10, 3, 11

ET unit identification number seven

Area dominated by moist bare soil

2.2-3.0

1

ET unit identification number eight

Area dominated by sparse to moderately dense shrubland vegetation

.7-2.5

10, 4, 11, 8

ET unit identification number nine

Area dominated by sparse woodland vegetation

.7-1.8

10, 8, 9

ET unit identification number ten

Area dominated by open playa

.1-.7

2, 11, 3

1 Integer value assigned to represent evapotranspiration (ET) unit. Numbers are color coded to match ET units as mapped in figures 7, 8, 9, 10, 11, 12, 13, 14, and 15.
2 See table 1 for a more detailed description of ET unit.
3 Estimate given as range. Range is inclusive of rates determined at different sites, for different years, and from different sources.
4 Primary sources used to develop range. Number identifies source(s). Order of source in column 4 indicates significance of estimate: 1, Laczniak and others (1999); 2, DeMeo and others (1999); 3, Czarnecki (1997); 4, Nichols (1993); 5, Johnson (1993); 6, Weeks and others (1987); 7, Gay and Fritschen (1979); 8, Walker and Eakin (1963); 9, Young and Blaney (1942); 10, Reiner and others (2002); 11, Nichols (2001).