Central Valley Aquifer, Chapters A and B - MAE Class Websites
Central Valley Aquifer, Chapters A and B - MAE Class Websites Central Valley Aquifer, Chapters A and B - MAE Class Websites
174 Groundwater Availability of the Central Valley Aquifer, California 0 50 100 Miles 0 50 100 Kilometers Shaded relief derived from U.S. Geological Survey National Elevation Dataset, 2006. Albers Equal Area Conic Projection 1 1 2 -1 3 5 7 4 7 4 3 1 5 4 8 6 3 EXPLANATION Subsidence, in feet, from 1961 to 1975, (Williamson and others, 1989). Negative values indicate uplift— 1 2 2 1 Model streams and canals 3 -1 to 0 1 2 to 5 6 to 10 Active model grid boundary Model water-balance subregion Figure C20. Distribution of historical subsidence, estimated from 1961 to 1977 extensometer data, Central Valley, California (modified from Williamson and others, 1989). 4 4 1 2 3
A 11N/1E-24Q8 1 1 1 1 12S/12E-16H2,3 0 50 100 Miles 0 50 100 Kilometers Shaded relief derived from U.S. Geological Survey National Elevation Dataset, 2006. Albers Equal Area Conic Projection 1 1 14S/12E-12H1 1 10 14S/13E-11D6 15S/13E-11D2 16S/15E-34N1 17S/15E-14Q1 18S/16E-33A1 1 20S/18E-6D1 5 5 10 5 5 18S/16E-33A1 26S/23E-16H2, 3 5 5 10 10 20S/18E-6D1 5 Model Calibration and Sensitivity 175 EXPLANATION Active model grid boundary Model streams and canals Model water-balance subregion Simulated subsidence 1962-2003, in feet 1 5 10 Subsidence observation locations 13S/15E-31J3 13S/15E-35D5 15S/16E-31N3 5 10 5 10 5 10 1 18S/19E-20P2 5 23S/25E-16N1,3,4 22S/27E-30D2 24S/26E-34F1 24S/26E-36A2 25S/26E-1A2 32S/28E-20Q1 Figure C21. A, Distribution of total simulated subsidence for water years 1962 through 2003, and locations of subsidence measurements. B, Aggregate compaction measured at, and simulated subsidence for, selected extensometer locations, Central Valley, California.
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A<br />
11N/1E-24Q8<br />
1<br />
1<br />
1<br />
1<br />
12S/12E-16H2,3<br />
0 50 100 Miles<br />
0 50 100 Kilometers<br />
Shaded relief derived from U.S. Geological Survey<br />
National Elevation Dataset, 2006. Albers Equal Area Conic Projection<br />
1<br />
1<br />
14S/12E-12H1<br />
1<br />
10<br />
14S/13E-11D6<br />
15S/13E-11D2<br />
16S/15E-34N1<br />
17S/15E-14Q1<br />
18S/16E-33A1<br />
1<br />
20S/18E-6D1<br />
5<br />
5<br />
10<br />
5<br />
5<br />
18S/16E-33A1<br />
26S/23E-16H2, 3<br />
5<br />
5<br />
10 10<br />
20S/18E-6D1<br />
5<br />
Model Calibration <strong>and</strong> Sensitivity 175<br />
EXPLANATION<br />
Active model grid boundary<br />
Model streams <strong>and</strong> canals<br />
Model water-balance subregion<br />
Simulated subsidence 1962-2003, in feet<br />
1<br />
5<br />
10<br />
Subsidence observation locations<br />
13S/15E-31J3<br />
13S/15E-35D5<br />
15S/16E-31N3<br />
5<br />
10<br />
5<br />
10<br />
5<br />
10<br />
1<br />
18S/19E-20P2<br />
5<br />
23S/25E-16N1,3,4<br />
22S/27E-30D2<br />
24S/26E-34F1<br />
24S/26E-36A2<br />
25S/26E-1A2<br />
32S/28E-20Q1<br />
Figure C21. A, Distribution of total simulated subsidence for water years 1962 through 2003, <strong>and</strong> locations of subsidence measurements.<br />
B, Aggregate compaction measured at, <strong>and</strong> simulated subsidence for, selected extensometer locations, <strong>Central</strong> <strong>Valley</strong>, California.
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