Ongoing drought-induced uplift in the western United States.

Science
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Abstract

The western United States has been experiencing severe drought since 2013. The solid earth response to the accompanying loss of surface and near-surface water mass should be a broad region of uplift. We use seasonally adjusted time series from continuously operating global positioning system stations to measure this uplift, which we invert to estimate mass loss. The median uplift is 5 millimeters (mm), with values up to 15 mm in California’s mountains. The associated pattern of mass loss, ranging up to 50 centimeters (cm) of water equivalent, is consistent with observed decreases in precipitation and streamflow. We estimate the total deficit to be ~240 gigatons, equivalent to a 10-cm layer of water over the entire region, or the annual mass loss from the Greenland Ice Sheet.

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Publication type Article
Publication Subtype Journal Article
Title Ongoing drought-induced uplift in the western United States.
Series title Science
DOI 10.1126/science.1260279
Volume 345
Issue 6204
Year Published 2014
Language English
Publisher AAAS
Contributing office(s) National Research Program - Western Branch
Description 4 p.
First page 1587
Last page 1590
Country United States
Online Only (Y/N) N
Additional Online Files (Y/N) N
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