Scientific Investigations Report 2006–5145
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5145
Figure 20. Ground-water level, daily evapotranspiration (ET), daily change in ground-water level, and apparent specific yield at the Grapevine Springs ET site, water year 2002. Apparent specific yield calculated as daily evapotranspiration divided by daily change in measured ground-water level.