Faunt, Claudia C. 2012 tabular digital data Professional Paper 1766 Reston, Virginia U.S. Geological Survey http://water.usgs.gov/lookup/getspatial?pp1766_fmp_parameters Faunt, Claudia C. (editor) 2009 Professional Paper 1766 Reston, Virginia U.S. Geological Survey 3 chapters, 1 appendix http://pubs.usgs.gov/pp/1766/PP_1766.pdf This digital dataset defines the farm-process parameters used in the transient hydrologic model of the Central Valley flow system. The Central Valley encompasses an approximate 50,000 square-kilometer region of California. The complex hydrologic system of the Central Valley is simulated using the USGS numerical modeling code MODFLOW-FMP. This simluation is referred to here as the Central Valley Hydrologic Model (CVHM) (Faunt, 2009). Utilizing MODFLOW-FMP, the CVHM simulates groundwater and surface-water flow, irrigated agriculture, land subsidence, and other key processes in the Central Valley on a monthly basis from 1961-2003. The Farm Process parameters for Crops, Root Depth, Runoff, Pressure, Crop Coefficients (Kc), Transpiratory fraction of consumptive use (FTR), Evaporative fraction of consumptive use related to precipitation (FEP), and Evaporative fraction of consumptive use related to irrigation (FEI) are all tabulated. More detailed descriptions of these parameters can be found in Schmid and others (2006b) and Faunt and others (2009). The CVHM is the most recent regional-scale model of the Central Valley developed by the U.S. Geological Survey (USGS). The CVHM was developed as part of the USGS Groundwater Resources Program (see "Foreword", Chapter A, page iii, for details). The farm process parameters values were used as input to MODFLOW-FMP, the USGS 3-dimensional finite-difference code used to simulate flow in the CVHM. For the CVHM, the processes of evaporation, transpiration, runoff, and deep percolation to groundwater were estimated using the Farm Process (FMP). The FMP allocates water, simulates or approximates processes, and computes mass balances for defined subregions of the model domain; in the CVHM, these subregions, or farms, are defined as the water-balance subregions. MODFLOW-FMP estimates irrigation water allocations from conjunctively used surface water and groundwater. It is designed to simulate the demand components representing crop irrigation requirements and on-farm inefficiency losses, and the supply components representing surface-water deliveries and supplemental groundwater pumpage. The FMP also simulates additional head-dependent inflows and outflows such as canal losses and gains, surface runoff, surface-water return flows, evaporation, transpiration, and deep percolation of excess water (Faunt, 2009). Hence, the CVHM is a tool that accounts for integrated, variable water supply and demand, and simulates surface-water and groundwater-flow across the entire Central Valley system. The FMP is based on mass balances (Schmid and others, 2006a, b). A farm mass balance is maintained between all inflows to and outflows from a farm, and is calculated and balanced for each simulation time step. A soil-water balance is calculated between inflows into the soil zone and the ET outflow. The details of the soil-water balance are given by Schmid and others (2006b). The FMP dynamically integrates irrigation water demand, surface-water and groundwater supply, and deep percolation. The FMP has the capability to estimate economically optimal allocations through acreage optimization of water supplied by surface-water and groundwater deliveries when demand exceeds supply. Other non-economic drought-response scenarios, such as deficit irrigation and water stacking, also are available. Combined with other MODFLOW-2000 (MF2K) packages such as Streamflow-Routing (SFR1) and Multi-Node Well (MNW) packages, the FMP helps to transform MF2K from a predominantly groundwater-flow model to a more complete hydrologic model. While the FMP contains many optional simulation features, only some of the available components are used for the Central Valley. More details on all the components of the FMP can be found in Schmid and others (2006b) and Faunt and others (2009). The CVHM farm process parameter dataset is one of many layers in a geospatial database supporting the USGS Central Valley Groundwater Availability Project. Regional groundwater availability studies quantify current groundwater resources, evaluate how those resources have changed through time, and provide tools that decision makers can use to predict system responses to future development and climate variability and change. To provide information to stakeholders addressing these issues, the USGS made a detailed assessment of groundwater availability of the Central Valley aquifer system, which includes: (1) the present status of groundwater resources; (2) characterization of how these resources have changed over time; and (3) tools to assess system responses to stresses from future human uses and climate variability and change. This effort builds on previous investigations, such as the USGS Central Valley Regional Aquifer System and Analysis (CV-RASA) project and several other groundwater studies in the Valley completed by Federal, State and local agencies at various scales. Data from these previous studies were the foundation of the Central Valley geospatial database. These and other data were re-examined through a series of regional-scale hydrologic investigations to provide updated and spatially consistent interpretations for the Central Valley Groundwater Availability study. In some cases, new data were collected to augment existing information. Data compiled from the studies include geology (in particular, borehole lithology and the extent and thickness of the Corcoran Clay Member of the Tulare Formation), topography, remote sensing, climate (precipitation and temperature), geophysics, vegetation and land use, vegetation properties, hydrology (stream network and flows), groundwater levels, subsidence, chemistry, and soils. Digital elevation models, geologic maps, borehole information, cross sections, and other 3-dimensional models were used to develop the texture model which represents the properties and geometry of the Central Valley alluvial deposits. The resulting geospatial database supports characterization and conceptualization of the Central Valley hydrologic system between 1961 and 2003, construction of 3-dimensional hydrogeologic framework and hydrologic flow models, and visualization of analysis and model results. 2009 publication date Complete None planned -123.831528 -117.916328 40.748631 34.519871 ISO 19115 Topic Category inlandWaters geoscientificinformation American Geological Institute Glossary of Geology (http://glossary.agiweb.org/dbtw-wpd/glossary/search.aspx) hydrology hydrogeology model groundwater none Groundwater Availability of the Central Valley Aquifer Central Valley Aquifer Central Valley Hydrologic Model Texture Model Flow Model CVHM CV-RASA farm process U.S. Board of Geographic Names (BGN) and Geographic Names Information System (GNIS) California Central Valley Trinity County Shasta County Tehama County Humboldt County Butte County Mendocino County Glenn County Yuba County Lake County Nevada County Colusa County Sutter County Placer County El Dorado County Yolo County Sonoma County Napa County Sacramento County Amador County Solano County Calaveras County Tuolumne County San Joaquin County Contra Costa County Stanislaus County Alameda County Mariposa County Madera County Merced County Fresno County Santa Clara County San Benito County Monterey County Tulare County Kings County Kern County San Luis Obispo County Santa Barbara County Ventura County Sacramento Valley San Joaquin Valley Central Valley, California None. Data have been checked to ensure the accuracy of the data. If any errors are detected, please notify the originating office. The U.S. Geological Survey strongly recommends that careful attention be paid to the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the dataset in nonproprietary form, as well as in ArcGIS format, this metadata file may include some ArcGIS-specific terminology. Claudia C. Faunt U.S. Geological Survey Hydrologist mailing and physical address

4165 Spruance Road, Suite 200

92101 CA 92101 USA (619) 225-6142 (619) 225-6101 ccfaunt@usgs.gov http://water.usgs.gov/GIS/browse/pp1766_fmp_parameters.png Illlustration of data set png Spatial datasets supporting the Central Valley Groundwater Availability project were developed primarily by the U.S. Geological Survey's (USGS) Groundwater Resources Program. This program is conducting large-scale multidisciplinary regional studies of groundwater availability. The U.S. Bureau of Reclamation is supporting the updating of the Central Valley datasets and their documentation and release. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3500 Schmid, Wolfgang Hanson, R. T. Maddock, Thomas, III 2006a Golden, CO International Ground Water Modeling Center Schmid, Wolfgang Hanson, R. T. Maddock, Thomas, III Leake, S. A. 2006b Techniques and Methods 6-A17 Sacramento, CA USGS California Water Science Center http://pubs.usgs.gov/tm/2006/tm6A17/ Faunt, Claudia C. Hanson, Randall T. Belitz, Kenneth Rogers, Laurel 2009 Fact Sheet 2009-3057 Reston, VA U.S. Geological Survey http://pubs.usgs.gov/fs/2009/3057/ Attributes added by the GIS and the data-set author were checked by inspection using a GIS. In addition, attributes were checked and evaluated as part of the review process associated with the publication of the source report. Tabular, non-spatial dataset. Categories were determined by the dataset originator, who transcribed them into this table. The measurements in this dataset are computer-generated and are used in the Farm Process portion of the Central Valley Hydrologic Model. The dataset is complete and is not anticipated to change. Claudia C. Faunt 2009 document Professional Paper 1766 Reston, VA U.S. Geological Survey http://pubs.usgs.gov/pp/1766/PP_1766.pdf 500000 online 2009 publication date Faunt and others (2009) See Professional Paper 1766 - Groundwater Availability of the Central Valley Aquifer, California. Crop Coefficient 04012005 Faunt, C.C. USGS Hydrologist mailing and physical address

4165 Spruance Road, Suite 200

San Diego CA 92101 USA (619) 225-6142 ccfaunt@usgs.gov RDmax ]]> Root Depth 04012005 Claudia C. Faunt USGS Hydrologist mailing and physical address

4165 Spruance Road, Suite 200

San Diego CA 92101 USA 619.225.6142 ccfaunt@usgs.gov Crop dataset used in the FMP for the Central Valley Hydrologic Model. Crop coefficient values are available from several sources (Brush and others, 2004). When available, published crop coefficient values for the western San Joaquin Valley (Brush and others, 2004) were used; when no published crop coef¬ficient values were available for the San Joaquin Valley, pub¬lished crop coefficient values for another similar climatic area were used. In many cases, multiple crops were area-weighted to produce a composite, virtual crop coefficient (Faunt, 2009). Crops include: Water Urban Native classes Orchards, groves, and vineyards Pasture/Hay Row Crops Small Grains Idle/fallow Truck, nursery, and berry crops Citrus and subtropical Field crops Vineyards Pasture Grain and hay crops Semiagricultural (livestock feedlots, diaries, poultry farms) Deciduous fruits and nuts Rice Cotton Developed Cropland and pasture Cropland Irrigated Row and Field Crops Crops 04012005 Claudia C. Faunt USGS Hydrologist mailing and physical address

4165 Spruance Road, Suite 200

San Diego CA 92101 USA 619.225.6142 ccfaunt@usgs.gov Data were processed using the Farm Process (FMP), a computer program that was developed for the U.S. Geological Survey three-dimensional finite-difference modular ground-water flow model, MODFLOW- 2000 (MF2K). The FMP allows MF2K users to simulate conjunctive use of surface- and ground water for irrigated agriculture for historical and future simulations, water-rights issues and operational decisions, nondrought and drought scenarios (Schmid and others, 2006b). FTR, FEP and FEI data by month (for a one year period) for each crop FTR (Transpiratory fraction of consumptive use (0 < FTR <=1) FEP (Evaporative fraction of consumptive use related to precipitation (0 <=FEB <= 1) FEI (Evaporative fraction of consumptive use related to irrigation () <=FEI <1) In this application of the data for the construction of the Central Valley Hydrologic Model, FEP = 1 - FTR FEI <= FEP FTR_FEP_FEI 04012005 Claudia C. Faunt USGS Hydrologist mailing and physical address

4165 Spruance Road, Suite 200

San Diego CA 92101 USA 619.225.6142 ccfaunt@usgs.gov Measurements for FIESWP and FIESWI for each crop in the Farm Process (FMP) dataset for the Central Valley Hydrologic Model. The FMP is a computer program that was developed for the U.S. Geological Survey three-dimensional finite-difference modular ground-water flow model, MODFLOW- 2000 (MF2K). The FMP allows MF2K users to simulate conjunctive use of surface- and ground water for irrigated agriculture for historical and future simulations, water-rights issues and operational decisions, nondrought and drought scenarios(Schmid and others, 2006b). FIESWP = Fraction of in-efficient losses to surface-water related to precipitation (0 <=FIESWP <=1) FIESWP = Fraction of in-efficient losses to surface-water related to irrigation (0 <=FIESWI <=1) Runoff 04012005 Claudia C. Faunt USGS Hydrologist mailing and physical address

4165 Spruance Road, Suite 200

San Diego CA 92101 USA 619.225.6142 ccfaunt@usgs.gov For the CVHM, constant values of root depths and root uptake pressures were used for the entire simulation and were based on values from the literature and those developed for DWR's C2VSIM model of the Central Valley (C. Brush, California Department of Water Resources, written commun., February 21, 2007). The data was then processed using the Farm Process (FMP), a computer program that was developed for the U.S. Geological Survey three-dimensional finite-difference modular ground-water flow model, MODFLOW- 2000 (MF2K). The FMP allows MF2K users to simulate conjunctive use of surface- and ground water for irrigated agriculture for historical and future simulations, water-rights issues and operational decisions, nondrought and drought scenarios (Schmid and others, 2006b). Measurement of Pressure Heads (PS1, PS2, PS3, PS4) by crop. PSI(1) Absolute value of negative pressure head, at which root uptake becomes zero due to anoxia (absolute value > 0) [L] PSI(2), PSI(3) Absolute values of negative pressure heads, between which root uptake is optimal (absolute value > 0) [L] PSI(4) Absolute values of negative pressure head, at which root uptake becomes zero due to wilting (absolute value > 0) [L] Pressure Heads 04012005 Claudia C. Faunt USGS Hydrologist mailing and physical address

4165 Spruance Road, Suite 200

San Diego CA 92101 USA 619.225.6142 ccfaunt@usgs.gov U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://water.usgs.gov/user_feedback_form.html Downloadable Data Digital geospatial datasets for the farm process data parameters used in the numerical model of the hydrogeologic landscape and groundwater flow in California's Central Valley. Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. The use of firm, trade, or brand names in this report is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey. The names mentioned in this document may be trademarks or registered trademarks of their respective trademark owners. XLS Microsoft Excel 2007 Excel Spreadsheet http://water.usgs.gov/GIS/dsdl/pp1766_fmp_parameters.zip None. This dataset is provided by the USGS as a public service. 2011 20120824 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing address

445 National Center

Reston VA 20192 USA 1-888-275-8747 (1-888-ASK-USGS) http://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Datase+pp1766_fmp_parameters FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998