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Mining-related ground deformation in Crescent Valley, Nevada: Implications for sparse GPS networks
 

Summary: Mining-related ground deformation in Crescent Valley, Nevada:
Implications for sparse GPS networks
Noel Gourmelen,1
Falk Amelung,1
Francesco Casu,2
Mariarosaria Manzo,2
and Riccardo Lanari2
Received 21 January 2007; revised 9 March 2007; accepted 10 April 2007; published 8 May 2007.
[1] We use the Small BAseline Subset (SBAS) InSAR
algorithm to obtain radar line-of-sight deformation
velocities for two adjacent SAR swaths and invert the
data for the 2-D velocity field in vertical and ground range
direction. The analysis reveals areas of rapid deformation
caused by mining and agricultural activities in the Crescent
Valley, Nevada, USA. The LOS displacements of up to
25 centimeters during the 19922002 period are caused by
vertical and horizontal deformation. About 8 mm/yr
horizontal velocity is detected 10 km from the BARGEN
GPS site LEWI suggesting that the GPS station may be
moving in response to the water pumping. In the Basin and

  

Source: Amelung, Falk - Rosenstiel School of Marine and Atmospheric Sciences, University of Miami
Miami, University of - Geodesy Laboratory

 

Collections: Geosciences