Determination of Land Subsidence Related to Ground-water-level Declines Using Global Positioning System and Leveling Surveys in Antelope Valley, Los Angeles and Kern Counties, California, 1992
U.S. Department of the Interior, U.S. Geological Survey, 1994 - Global Positioning System - 101 pages
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90th Street accuracy adjustment Antelope Valley aquifer aquifer system aquifer-system average Base bench marks Blvd calculated California caused changes Code compaction concrete post Continue contour control stations coordinates datum decline deposits determined differences dirt rd drive effective elevation ellipsoidal error estimated figure ft above ls ft/yr Geodetic Geological Global Positioning System GPS survey ground-water height historical horizontal HPGN increase indicate intersection Lake Lancaster land subsidence land-surface Last recovered length leveling locations Magni magnitude maximum measured monument North/Range Note occurred Palmdale period primary processing projecting ranged rates rates of subsidence record relative Road Rogers Rosamond selected shows Sierra Highway Sierra Hwy standards Street East Avenue stress subbasin surface Survey tectonic thence Township track values vector vertical vertical-control stations water-level West witness post