Publications
The following list of California Water Science Center publications includes both official USGS publications and journal articles authored by our scientists.
Filter Total Items: 1865
Joint-species analysis reveals potential displacement of native fishes by non-native fishes within the Santa Ana River, California Joint-species analysis reveals potential displacement of native fishes by non-native fishes within the Santa Ana River, California
Accurate estimates of abundance are a cornerstone for resource managers to make effective decisions for fish conservation. However, multiple sampling methods often are required to sample fish communities, and ignoring the detection process can create substantial bias in latent state parameter estimation (e.g., abundance, survival). We developed a joint-species N-mixture model that...
Authors
Brock M. Huntsman, Larry R. Brown, Kai Palenscar, Chris Jones, Kerwin Russell, Heather Dyer, Brett Mills, Marissa L. Wulff, Jason May
Stable isotopes provide insight into sources and cycling of N compounds in the Sacramento-San Joaquin Delta, California, USA Stable isotopes provide insight into sources and cycling of N compounds in the Sacramento-San Joaquin Delta, California, USA
River deltas and their diverse array of aquatic environments are increasingly impacted by anthropogenic inputs of nitrogen (N). These inputs can alter the N biogeochemistry of these systems and promote undesirable phenomena including harmful algae blooms and invasive aquatic macrophytes. To examine N sources and biogeochemical processes in the Sacramento-San Joaquin Delta, a river delta...
Authors
Joseph K. Fackrell, Tamara E. C. Kraus, Megan B. Young, Carol Kendall, Sara Peek
Yucaipa valley integrated hydrological model Yucaipa valley integrated hydrological model
Authors
Ayman H. Alzraiee, John A. Engott, Geoffrey Cromwell, Linda R. Woolfenden
Hydrogeologic characterization of the Yucaipa groundwater subbasin Hydrogeologic characterization of the Yucaipa groundwater subbasin
Authors
Geoffrey Cromwell, John A. Engott, Ayman H. Alzraiee, Christina L. Stamos, Gregory Mendez, Meghan C. Dick, Sandra Bond
Perfluoroalkyl and polyfluoroalkyl substances in groundwater used as a source of drinking water in the eastern United States Perfluoroalkyl and polyfluoroalkyl substances in groundwater used as a source of drinking water in the eastern United States
In 2019, 254 samples were collected from five aquifer systems to evaluate per- and polyfluoroalkyl substance (PFAS) occurrence in groundwater used as a source of drinking water in the eastern United States. The samples were analyzed for 24 PFAS, major ions, nutrients, trace elements, dissolved organic carbon (DOC), volatile organic compounds (VOCs), pharmaceuticals, and tritium. Fourteen...
Authors
Peter B. McMahon, Andrea K. Tokranov, Laura M. Bexfield, Bruce D. Lindsey, Tyler D. Johnson, Melissa A. Lombard, Elise Watson
Simulation of groundwater and surface-water resources of the San Antonio Creek Valley watershed, Santa Barbara County, California Simulation of groundwater and surface-water resources of the San Antonio Creek Valley watershed, Santa Barbara County, California
In the San Antonio Creek Valley watershed (SACVW), western Santa Barbara County, California, groundwater is the primary source of water for agricultural irrigation, the town of Los Alamos, and supplemental water to Vandenberg Space Force Base (VSFB). Groundwater pumpage has increased since the 1970s as non-irrigated agricultural land has been converted to irrigated land and as local...
Authors
Linda R. Woolfenden, John A. Engott, Joshua Larsen, Geoffrey Cromwell
Hydrogeologic characterization of the San Antonio Creek Valley watershed, Santa Barbara County, California Hydrogeologic characterization of the San Antonio Creek Valley watershed, Santa Barbara County, California
The San Antonio Creek Valley watershed (SACVW) is located in western Santa Barbara County, about 15 miles south of Santa Maria and 55 miles north of Santa Barbara, California. The SACVW is about 135 square miles and encompasses the San Antonio Creek Valley groundwater basin; the SACVW is separated from adjacent groundwater basins by the Casmalia and Solomon Hills to the north, and the...
Authors
Geoffrey Cromwell, Donald S. Sweetkind, Jill N. Densmore, John A. Engott, Whitney A. Seymour, Joshua Larsen, Christopher P. Ely, Christina L. Stamos, Claudia C. Faunt
Hydrologic and geochemical characterization of the Petaluma River watershed, Sonoma County, California Hydrologic and geochemical characterization of the Petaluma River watershed, Sonoma County, California
Authors
Jonathan A. Traum, Nicholas F. Teague, Donald S. Sweetkind, Tracy Nishikawa
Geology and hydrogeology of the Yucaipa groundwater subbasin, San Bernardino and Riverside Counties, California Geology and hydrogeology of the Yucaipa groundwater subbasin, San Bernardino and Riverside Counties, California
The Yucaipa groundwater subbasin (referred to in this report as the Yucaipa subbasin) is located about 75 miles (mi) east of of Los Angeles and about 12 mi southeast of the City of San Bernardino. In the Yucaipa subbasin, as in much of southern California, limited annual rainfall and large water demands can strain existing water supplies; therefore, understanding local surface water and
Authors
Geoffrey Cromwell, Jonathan C. Matti
Use case development for earth monitoring, analysis, and prediction (EarthMAP)—A road map for future integrated predictive science at the U.S. Geological Survey Use case development for earth monitoring, analysis, and prediction (EarthMAP)—A road map for future integrated predictive science at the U.S. Geological Survey
Authors
Tamara Wilson, Mark T. Wiltermuth, Karen E. Jenni, Robert Horton, Randall J. Hunt, Dee M. Williams, Vivian P. Nolan, Nicholas G. Aumen, David S. Brown, Kyle W. Blasch, Peter S. Murdoch
Climate and land change impacts on future managed wetland habitat: A case study from California’s Central Valley Climate and land change impacts on future managed wetland habitat: A case study from California’s Central Valley
Concept
Authors
Tamara Wilson, Elliott L. Matchett, Kristin B. Byrd, Erin Conlisk, Matthew E. Reiter, Cynthia Wallace, Lorraine E. Flint, Alan L. Flint, Monica Mei Jeen Moritsch