Locations, values, and uncertainties of hydraulic-head observations for the steady-state, prepumped period of the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California

Description

This digital geospatial data set contains the locations, values, and uncertainties of 700 hydraulic-head
observations used in the steady-state, prepumped period of the transient model of the Death Valley
regional ground-water flow system (DVRFS), a 100,000-square-kilometer region of southern Nevada
and California. Hydraulic-head observations, which are the composite of one or more water-level
measurements made at a well, are used to calibrate ground-water flow models. To develop hydraulic-
head observations for the DVRFS ground-water flow model, nearly all available water levels for the
DVRFS region through 2004 were compiled in Ground-Water Site Inventory (GWSI), the ground-water
component of the U.S. Geological Survey (USGS) National Water Information System (NWIS) database.
Water levels suitable for developing hydraulic-head observations representative of regional, steady-state
ground-water flow conditions were identified through analyses. The resulting water levels were averaged
for each well to produce one hydraulic-head observation value at each of 700 wells. The uncertainty
of each hydraulic-head observation was statistically quantified from the values of uncertainties associated
with well altitude and location, nonsimulated transient stress, and measurement accuracy.

Resources

Name Format Description Link
Original Metadata XML The metadata original format Open resource
Digital Data XML Landing page for access to the data Open resource

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