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

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12 Groundwater Availability of the Central Valley Aquifer, California A Average annual precipitation, in inches per year— 6 to 8 9 to 10 11 to 12 13 to 14 15 to 16 17 to 18 19 to 20 21 to 22 23 to 24 25 to 26 27 to 28 29 to 30 31 to 32 33 to 34 35 to 36 37 to 38 39 to 40 41 to 42 43 to 44 45 to 46 Red Bluff 0 50 100 Miles 0 50 100 Kilometers Sacramento River Davis Shaded relief derived from U.S. Geological Survey National Elevation Dataset, 2006. Albers Equal Area Conic Projection San Joaquin River Los Gatos Creek Feather River Yuba River Bear River American River Cosumnes River Mokelumne River Calaveras River Stanislaus River Fresno Slough Davis EXPLANATION Average annual inflow, in thousands of acre-feet per year— Tuolumne River Merced River Less than 100 100.1 to 500 500.1 to 1,000 1,000.1 to 2,000 2,000.1 to 3,000 3,000.1 to 4,000 4,000.1 to 5,000 Greater than 5,000 Selected streams and rivers Precipitation station and identifier San Joaquin River Kings River Kaweah River Tule River White River Kern River Bakersfield Figure A5. A, Surface-water inflows and average annual precipitation for September 1961 through September 2003 throughout the Central Valley, California. B, Average annual reference evapotranspiration (ETo) for September 1961 through September 2003 throughout the Central Valley, California. ETo data were calculated from PRISM temperature data (Climate Source, 2006). The surface-water inflows are from U.S. Geological Survey files and California Department of Water Resources (C. Brush, written commun., February 21, 2007). Precipitation data are from Parameter-Elevation Regressions on Independent Slopes Model (PRISM) data (Climate Source, 2006).

B Red Bluff 0 50 100 Miles 0 50 100 Kilometers Davis Shaded relief derived from U.S. Geological Survey National Elevation Dataset, 2006. Albers Equal Area Conic Projection Figure A5. Continued. Davis EXPLANATION Selected streams and rivers Precipitation station and identifier Bakersfield Study Area 13 Average annual reference evapotranspiration, in inches per year— 45.5 to 46 46.1 to 47 47.1 to 48 48.1 to 49 49.1 to 50 50.1 to 51 51.1 to 52 52.1 to 53 53.1 to 54 54.1 to 55 55.1 to 56

12 Groundwater Availability of the <strong>Central</strong> <strong>Valley</strong> <strong>Aquifer</strong>, California<br />

A<br />

Average annual<br />

precipitation,<br />

in inches per year—<br />

6 to 8<br />

9 to 10<br />

11 to 12<br />

13 to 14<br />

15 to 16<br />

17 to 18<br />

19 to 20<br />

21 to 22<br />

23 to 24<br />

25 to 26<br />

27 to 28<br />

29 to 30<br />

31 to 32<br />

33 to 34<br />

35 to 36<br />

37 to 38<br />

39 to 40<br />

41 to 42<br />

43 to 44<br />

45 to 46<br />

Red Bluff<br />

0 50 100 Miles<br />

0 50 100 Kilometers<br />

Sacramento River<br />

Davis<br />

Shaded relief derived from U.S. Geological Survey<br />

National Elevation Dataset, 2006. Albers Equal Area Conic Projection<br />

San Joaquin River<br />

Los Gatos<br />

Creek<br />

Feather<br />

River<br />

Yuba<br />

River<br />

Bear<br />

River<br />

American<br />

River<br />

Cosumnes<br />

River<br />

Mokelumne<br />

River<br />

Calaveras<br />

River<br />

Stanislaus<br />

River<br />

Fresno<br />

Slough<br />

Davis<br />

EXPLANATION<br />

Average annual inflow,<br />

in thous<strong>and</strong>s of acre-feet per year—<br />

Tuolumne<br />

River<br />

Merced<br />

River<br />

Less than 100<br />

100.1 to 500<br />

500.1 to 1,000<br />

1,000.1 to 2,000<br />

2,000.1 to 3,000<br />

3,000.1 to 4,000<br />

4,000.1 to 5,000<br />

Greater than 5,000<br />

Selected streams<br />

<strong>and</strong> rivers<br />

Precipitation station<br />

<strong>and</strong> identifier<br />

San Joaquin<br />

River<br />

Kings<br />

River<br />

Kaweah<br />

River<br />

Tule<br />

River<br />

White<br />

River<br />

Kern<br />

River<br />

Bakersfield<br />

Figure A5. A, Surface-water inflows <strong>and</strong> average annual precipitation for September 1961 through September 2003 throughout the <strong>Central</strong> <strong>Valley</strong>,<br />

California. B, Average annual reference evapotranspiration (ETo) for September 1961 through September 2003 throughout the <strong>Central</strong> <strong>Valley</strong>, California.<br />

ETo data were calculated from PRISM temperature data (Climate Source, 2006). The surface-water inflows are from U.S. Geological Survey files <strong>and</strong><br />

California Department of Water Resources (C. Brush, written commun., February 21, 2007). Precipitation data are from Parameter-Elevation Regressions<br />

on Independent Slopes Model (PRISM) data (Climate Source, 2006).

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