US: GPS measurements reveal that prolonged drought is raising western land mass

[Emily]

http://www.livescience.com/47488-gps-drought-measurements.html

High 'n' Dry: GPS Offers New Way to Measure Drought
By Tanya Lewis, Staff Writer | August 21, 2014 02:03pm ET
The western United States has suffered a crippling drought for the past three years, but researchers now have a fuller picture of the extent of damage, thanks to a new way to measure how much water has been lost.

Using existing GPS measurements of ground uplift in the western U.S. from 2003 to 2014, researchers found that the land surface has risen approximately 0.15 inches (4 millimeters), and as much as 0.6 inches (15 mm) in California's mountains...