Central Valley Aquifer, Chapters A and B - MAE Class Websites

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Figure A17. Graph of cumulative departure from average annual precipitation at
Redding, Davis, Fresno, and Bakersfield, California ......................................................44
Figure A18. Graph of cumulative departure of monthly precipitation (Parameter-
elevation Regressions on Independent Slopes Model (PRISM) data from Davis,
California), cumulative departure of the Pacific Decadal Oscillation (PDO)
index, and cumulative departure of the monthly reference evapotranspiration
(ETo) values (gridded values of California Irrigation Management Information
System’s (CIMIS) stations from Redding, Davis, and Bakersfield, 1960–2004) .........45
Figure A19. Graph of cumulative departure of streamflow diversions from the
Bear River by South Sutter Water District, California; cumulative annual
temperature from California Irrigation Management Information System’s
(CIMIS) stations at Davis and the Pacific Decadal Oscillation (PDO) index,
1960–2004 ..............................................................................................................................47
Figure A20. Map of pre-development groundwater map ....................................................................49
Figure A21. Maps of distribution of A, Pre-1900 land-use patterns. B, Land-use
patterns in 2000 for the Central Valley, California ...........................................................50
Figure A22. Map of distribution of selected streams and canals, and average
estimated gains and losses for selected segments .......................................................52
Figure A23. Diagrams of pre-development water budget and post-development
water budget .........................................................................................................................53
Chapter B
Figure B1. Diagram showing average water budget for water years 1962–2003 .........................63
Figure B2. Pie charts and histograms showing simulated landscape budget for the
Central Valley for typical (1975), dry (1990), and wet (1998) years ...............................64
Figure B3. Pie charts and histograms showing simulated groundwater budget for the
Central Valley for typical (1975), dry (1990), and wet (1998) years ...............................65
Figure B4. Maps of A, Estimated change in hydraulic head in upper part of the
aquifer system from 1860 to 1961. B, Simulated change in hydraulic head in
lower part of the aquifer system from spring 1962 to spring 2003 ...............................68
Figure B5. Graphs showing monthly groundwater budget for the Central Valley for a
dry year (1990), typical year (1975), and wet year (1998) ...............................................71
Figure B6. Graphs of annual A, Delivery requirement, landscape recharge,
surface-water deliveries, and agricultural pumpage. B, Groundwater
withdrawals for agricultural and urban use for the entire Central Valley
between 1962 and 2003 .......................................................................................................73
Figure B7. Stacked bar chart showing simulated groundwater budget changes between
water years 1962 and 2003 for the Central Valley, California ........................................75
Figure B8. Stacked bar chart showing simulated annual changes in aquifer-system
storage between water years 1962 and 2003 for the Central Valley, California .......76
Figure B9. Graph showing simulated cumulative annual changes in aquifer-system storage
between water years 1962 and 2003 for the Central Valley, California ......................77
Figure B10. Pie charts and histograms of average annual groundwater budget for the
A, Sacramento Valley. B, Delta and Eastside Streams. C, San Joaquin Valley.
D, Tulare Basin .....................................................................................................................80
Figure B11. Stacked bar chart of simulated flow through multi-zone wells ...................................84