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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74 Groundwater Availability of the Central Valley Aquifer, California B SIMULATED PUMPAGE, IN MILLIONS OF ACRE-FEET PER YEAR 20 15 10 5 "Variable" to Dry "Variable" to Wet system. - and inelastic compaction. and Dry Wet Dry Wet "Variable" to Dry 0 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 Figure B6. Continued. WATER YEAR EXPLANATION Simulated pumpage— Total Urban Agricultural ( and - and ).

ANNUAL CHANGE IN GROUNDWATER AVAILABILITY, IN MILLIONS OF ACRE-FEET PER YEAR 30 20 10 0 -10 -20 -30 "Variable" to Dry mal precipitation () (fourth driest and the driest year - Development and Changes to the Hydrologic Budget 75 Period of Period of growth of water supplies Period of abundance Period of reduced supplies drought Representative water year "Variable" to Wet Typical Available water resources Dry Wet Dry Wet WATER YEAR EXPLANATION Net groundwater budget Dry Wet "Variable" to Dry 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 Specific yield and compressibility of water Groundwater flow to Delta Elastic and inelastic matrix storage Stream interaction Landscape recharge Pumpage Figure B7. Simulated groundwater budget changes between water years 1962 and 2003 for the Central Valley, California. (

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

B<br />

SIMULATED PUMPAGE, IN MILLIONS OF ACRE-FEET PER YEAR<br />

20<br />

15<br />

10<br />

5<br />

"Variable"<br />

to<br />

Dry<br />

"Variable"<br />

to<br />

Wet<br />

<br />

<br />

system. <br />

<br />

-<br />

<br />

<br />

<br />

<br />

<br />

<strong>and</strong> inelastic compaction. <br />

<br />

<br />

<br />

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

Dry Wet<br />

Dry<br />

Wet<br />

"Variable"<br />

to<br />

Dry<br />

0<br />

1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002<br />

Figure B6. Continued.<br />

WATER YEAR<br />

EXPLANATION<br />

Simulated pumpage—<br />

Total<br />

Urban<br />

Agricultural<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

( <strong>and</strong> <br />

<br />

<br />

<br />

-<br />

<strong>and</strong> ).

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