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
viii Subsidence Observations ......................................................................................................173 Pumpage Observations ...........................................................................................................179 Water-Use Observations ........................................................................................................179 Water-Delivery Observations.................................................................................................181 Model Parameters ...........................................................................................................................181 Sensitivity Analysis ..........................................................................................................................191 Simulation Results and Budget ...............................................................................................................191 Recharge and Discharge .................................................................................................................192 Aquifer-System Storage ..................................................................................................................197 Model Uncertainty and Limitations ........................................................................................................203 Future Work ................................................................................................................................................205 References Cited........................................................................................................................................207 Appendix 1 Supplemental Information—Modifications to Modflow-2000 Packages and Processes Introduction.................................................................................................................................................213 Layer-Property Flow Package (LPF) .......................................................................................................213 Multiplier Package (MULT).......................................................................................................................213 Time-Series Package (HYDMOD) ............................................................................................................213 Streamflow Routing Package (SFR1) ......................................................................................................214 The Farm Process (FMP1) ........................................................................................................................214 Concepts and Input Instructions for New FMP1 Features ........................................................214 Data for each Simulation ........................................................................................................215 Data for each Stress Period ...................................................................................................216 Root Uptake Under Variably Saturated Conditions (PSI specified in Item 14) ........................217 Current Concept of Root Uptake from Unsaturated Conditions .......................................217 Expanded Concept of Root Uptake from Variably Saturated Conditions ........................217 Input Instructions .....................................................................................................................221 Matrix of On-Farm Efficiencies (OFE specified in Items 7 or 24) ...............................................221 Input Requirements .................................................................................................................221 Data Output ...............................................................................................................................221 Non-Irrigation Crops (NONIRR Specified in Items 15 or 27) ......................................................222 Consumptive Use Options (ICUFL Specified in Item 2; ETR Specified as New Item) ............222 Semi-Routed Delivery (ISRDFL in Item 2; REACH in Items 20 or 34) .........................................222 Semi-Routed Surface-Water Runoff-Return Flow (ISRRFL in Item 2 and ROW COLUMN SEGMENT REACH Specified as New Item) ....................................................................223 Farm-Related Data List for Semi-Routed Runoff-Return Flow Locations (New Item Added After Items 20 or 34): ........................................................223 Additional Auxiliary Variable (AUX NOCIRNOQ Specified in Item 2) .......................................224 Farm Budget Output Options (IFBPFL Specified in Item 2) ........................................................224 References Cited........................................................................................................................................225
Figures Chapter A Figure A1. Map of Central Valley major geomorphic provinces, alluvial fans of the San Joaquin Basin, and extent and thickness of Corcoran Clay ....................................5 Figure A2. Diagram showing the relation and flow of information used in analyzing the Central Valley Hydrogeologic system .................................................................................7 Figure A3. Diagram showing the diversity of data types and categories included in the centralized geospatial database ..........................................................................................8 Figure A4. Diagram showing an example of the detail for compilation, integration, and analysis for one data type (water-level nformation) .........................................................9 Figure A5. A, Map of surface-water inflows and average annual precipitation for September 1961 through September 2003 throughout the Central Valley, California. B, Map showing average annual reference evapotranspiration (ETo) for September 1961 through September 2003 throughout the Central Valley, California ................................................................................................................................12 Figure A6. Graph of average monthly precipitation for Redding, Davis, and Bakersfield, California ..........................................................................................................14 Figure A7. Map of general features of the surface-water system in the Central Valley, California ....................................................................................................................16 Figure A8. Map of distribution of water-balance subregions (WBSs) used for surface-water delivery and estimation of groundwater pumpage ...............................19 Figure A9. Generalized cross-sections showing pre- and post-development of the A, Sacramento Valley. B, Central part of the San Joaquin Valley, California .................................................................................................................................21 Figure A10. A, Map of Central Valley showing groundwater basins and subbasins, groupings of basins and subbasins into spatial provinces and domains for textural analysis. B, Map showing distribution of wells used for mapping texture. C, Graph showing count of wells for each depth increment by domains through 1,200 feet .................................................................................................................24 Figure A11. Generalized hydrogeologic section (A–A’) indicating the vertical discretization of the numerical model of the groundwater-flow system in the Central Valley, California ................................................................................................................................29 Figure A12. Maps showing kriged distribution of coarse-grained deposits for layers 1, 3, Corcoran Clay, 6, and 9 of the groundwater-flow model. A, Layer 1. B, Layer 3. C, Corcoran Clay. D, Layer 6. E, Layer 9 .............................................................................31 Figure A13. Block diagram of kriged texture within groundwater-flow model ..............................36 Figure A14. Map showing distribution of coarse-grained deposits for the upper 50 feet for part of the Central Valley...............................................................................................37 Figure A15. Graph of cumulative distributions of kriged sediment textures for model layers in the A, Sacramento Valley. B, San Joaquin Valley and Tulare Basin ...........38 Figure A16. A, Bar chart of total inflow from 44 gaged streams flowing into the Central Valley, California, water years 1962–2003. B, Graph of average annual precipitation in the Central Valley, California, water years 1962–2003. C, Pie chart of total surface-water flow into the Central Valley, California, water years 1962–2003 .......................................................................................................42 ix
- Page 1 and 2: GROUNDWATER RESOURCES PROGRAM Groun
- Page 3 and 4: Groundwater Availability of the Cen
- Page 5 and 6: Foreword An adequate supply of grou
- Page 7 and 8: Contents Chapter A Introduction, Ov
- Page 9: Chapter C Numerical Model of the Hy
- Page 13 and 14: Figure B12. Map of altitude of the
- Page 15 and 16: Figure C28. Pie chart and histogram
- Page 17 and 18: Conversion Factors Inch/Pound to SI
- Page 19 and 20: Chapter A. Introduction, Overview o
- Page 21 and 22: - - precipitation. -
- Page 23 and 24: 40° 39° 38° 37° 36° 35° Klama
- Page 25 and 26: Texture Model DATA Centralized Geos
- Page 27 and 28: Hydrology Water Well Information Aq
- Page 29 and 30: Table A1. Water-balance subregions
- Page 31 and 32: B Red Bluff 0 50 100 Miles 0 50 100
- Page 33 and 34: Delta and Eastside Streams ).
- Page 35 and 36: for about 30 percent of the annual
- Page 37 and 38: 0 50 100 Miles 0 50 100 Kilometers
- Page 39 and 40: A Coast Ranges Clayey lenses Fault
- Page 41 and 42: - the distribution of these pro
- Page 43 and 44: C DEPTH TO MIDPOINT OF INCREMENT, I
- Page 45 and 46: ). The southern part, referred , in
- Page 47 and 48: 3-D Model of Percentage of Coarse-G
- Page 49 and 50: A Layer 1 EXPLANATION Central Valle
- Page 51 and 52: C Layer Corcoran Clay EXPLANATION C
- Page 53 and 54: E Layer 9 EXPLANATION Central Valle
- Page 55 and 56: Geomorphic province— Basin Delta
- Page 57 and 58: San Joaquin Valley ),
- Page 59 and 60: - Water supplied from aquifers
viii<br />
Subsidence Observations ......................................................................................................173<br />
Pumpage Observations ...........................................................................................................179<br />
Water-Use Observations ........................................................................................................179<br />
Water-Delivery Observations.................................................................................................181<br />
Model Parameters ...........................................................................................................................181<br />
Sensitivity Analysis ..........................................................................................................................191<br />
Simulation Results <strong>and</strong> Budget ...............................................................................................................191<br />
Recharge <strong>and</strong> Discharge .................................................................................................................192<br />
<strong>Aquifer</strong>-System Storage ..................................................................................................................197<br />
Model Uncertainty <strong>and</strong> Limitations ........................................................................................................203<br />
Future Work ................................................................................................................................................205<br />
References Cited........................................................................................................................................207<br />
Appendix 1<br />
Supplemental Information—Modifications to Modflow-2000 Packages <strong>and</strong> Processes<br />
Introduction.................................................................................................................................................213<br />
Layer-Property Flow Package (LPF) .......................................................................................................213<br />
Multiplier Package (MULT).......................................................................................................................213<br />
Time-Series Package (HYDMOD) ............................................................................................................213<br />
Streamflow Routing Package (SFR1) ......................................................................................................214<br />
The Farm Process (FMP1) ........................................................................................................................214<br />
Concepts <strong>and</strong> Input Instructions for New FMP1 Features ........................................................214<br />
Data for each Simulation ........................................................................................................215<br />
Data for each Stress Period ...................................................................................................216<br />
Root Uptake Under Variably Saturated Conditions (PSI specified in Item 14) ........................217<br />
Current Concept of Root Uptake from Unsaturated Conditions .......................................217<br />
Exp<strong>and</strong>ed Concept of Root Uptake from Variably Saturated Conditions ........................217<br />
Input Instructions .....................................................................................................................221<br />
Matrix of On-Farm Efficiencies (OFE specified in Items 7 or 24) ...............................................221<br />
Input Requirements .................................................................................................................221<br />
Data Output ...............................................................................................................................221<br />
Non-Irrigation Crops (NONIRR Specified in Items 15 or 27) ......................................................222<br />
Consumptive Use Options (ICUFL Specified in Item 2; ETR Specified as New Item) ............222<br />
Semi-Routed Delivery (ISRDFL in Item 2; REACH in Items 20 or 34) .........................................222<br />
Semi-Routed Surface-Water Runoff-Return Flow (ISRRFL in Item 2 <strong>and</strong> ROW COLUMN<br />
SEGMENT REACH Specified as New Item) ....................................................................223<br />
Farm-Related Data List for Semi-Routed Runoff-Return Flow Locations<br />
(New Item Added After Items 20 or 34): ........................................................223<br />
Additional Auxiliary Variable (AUX NOCIRNOQ Specified in Item 2) .......................................224<br />
Farm Budget Output Options (IFBPFL Specified in Item 2) ........................................................224<br />
References Cited........................................................................................................................................225
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