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U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007-5097

Water-Level and Land-Subsidence Studies in the Mojave River and Morongo Ground-Water Basins

Go the the report website (http://maps.ca.water.usgs.gov/Mojave/)

Prepared in cooperation with the Mojave Water Agency
By Christina L. Stamos, Kelly R. McPherson, Michelle Sneed, and Justin T. Brandt

Introduction

Since 1992, the U.S. Geological Survey (USGS), in cooperation with the Mojave Water Agency (MWA), has constructed a series of regional water-table maps for intermittent years in a continuing effort to monitor ground-water conditions in the Mojave River and Morongo ground-water basins. The previously published data, which were used to construct these maps, can be accessed on the interactive map. The associated reports describing the ground-water conditions for the Mojave River ground-water basin for 1992 (Stamos and Predmore, 1995); the Morongo ground-water basin for 1994 (Trayler and Koczot, 1995); and for both ground-water basins for 1996 (Mendez and Christensen, 1997); for 1998 (Smith and Pimentel, 2000); for 2000 (Smith, 2002); for 2002 (Smith and others, 2004); and for 2004 (Stamos and others, 2004) can be accessed using this web site. The latest water-level map in this series and the discussion of the ground-water conditions for the spring of 2006 in the Mojave River and Morongo ground-water basins are also now available on this website (2006).

Concerns related to the potential for new or renewed land subsidence in the Mojave River and Morongo ground-water basins resulted in a cooperative study between the MWA and the U.S. Geological Survey (USGS). Spatially detailed maps of interferometric synthetic aperture radar (InSAR) data were developed to determine the location, extent, and magnitude of vertical land-surface changes in the Mojave River and Morongo ground-water basins for time intervals ranging from about 35 days to 14 months between 1999 and 2000 and between 2003 and 2004.

Mapping of water-level contours, water-level change and numerous interferometric synthetic aperture radar (InSAR) images were combined in an interactive map. This interactive map may be customized to your needs and viewed at a scale that is appropriate for the data.

Contents

Introduction
Water-level studies
Land-subsidence studies
Interactive map
References
Data
Related publications
Contacts

Go the the report website (http://maps.ca.water.usgs.gov/Mojave/)