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Location Folder Show Tree ROOT _ScienceBase Catalog __USGS California Water Science Center ___CAWSC Data Releases (Published) 1992 digital surface model and orthomosaic of Malakoff Diggins State Historic Park, California Aerial imagery and other remotely-sensed data from a UAS survey of Pepperwood Preserve, Sonoma County, CA Assessing spatial variability of nutrients, phytoplankton and related water-quality constituents in the California Sacramento-San Joaquin Delta at the landscape scale: High-resolution mapping surveys Basin Characterization Model (BCMv8) for California Coastal Basins - Monthly Historical (water years 1896-2019) and Future (water years 2006-2099) Climate and Hydrology Basin Characterization Model (BCMv8) monthly recharge and runoff for the Anza-Cahuilla Groundwater Basin, California More... Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (2) Types Downloadable (3) Map Service (3) OGC WFS Layer (3) OGC WMS Layer (3) Contacts Krishangi D Groover Carole D Johnson U.S. Geological Survey - ScienceBase Christopher P Ely U.S. Geological Survey More... Categories Data (3) Tag Types Theme (3) Place (3) USGS Scientific Topic Keyword (1) Harvest Set (1) Tag Schemes USGS Thesaurus (3) None (3) Common geographic areas (3) ISO 19115 Topic Category (3) Geographic Names Information System (GNIS) (1) Geographic Names Information Systen (1) Geographic Name Information System (GNIS) (1) More... View Results as: JSON ATOM CSV Browse Folder

Electrical Resistivity Tomography Data at Edwards Air Force Research Laboratory, Antelope Valley, California, 2018 Electrical resistivity tomography (ERT) surveys were done northwest of the Air Force Research Laboratory (AFRL) at Edwards Air Force Base. ERT surveys were done at four locations in May through June of 2018 to refine the understanding of the bedrock-alluvial aquifer transition zone downgradient from the AFRL. The ERT technique injects direct-current electricity with known voltage and current into the earth using a series of electrodes and measures the resulting resistivity. This technique is generally limited to investigations of aquifer properties less than 100 meters below land surface. Data from other geophysical techniques co-located with the ERT data, including time-domain electromagnetics and horizontal-to-vertical... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Antelope-Fremont Valleys, Boron, California, California Water Science Center, Edwards Air Force Base, All tags... Electrical Resistivity Tomography, Leuhman Ridge, Mojave Desert, North Edwards, bedrock geologic units, environment, geophysics, geoscientificInformation, groundwater, hydrologic processes, water resources, Fewer tags Ground-Based Time-Domain Electromagnetic Data Collected at Edwards Air Force Research Laboratory, Antelope Valley, California, 2018 Time-domain electromagnetic (TEM) surveys were done northwest of the Air Force Research Laboratory (AFRL) at Edwards Air Force Base. TEM surveys were done at 33 locations between May and October 2018 to refine the understanding of the bedrock-alluvial aquifer transition zone downgradient from the AFRL. TEM surveys (also called transient electromagnetic surveys) provide 1D resistivity soundings of the subsurface, which can be related to lithology and hydrogeology. In the TEM method, electrical current is cycled through a transmitter loop (Tx) wire, which in turn produces a primary magnetic field. When the current is abruptly terminated, a secondary magnetic field is induced in the earth, and it moves downward and... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Antelope-Fremont Valleys, Boron, California, Edwards Air Force Base, Kern County, All tags... Leuhman Ridge, Mojave Desert, North Edwards, electrical resistivity tomography, environment, geophysics, geophysics, geoscientificInformation, measurement, time domain electromagnetic, transient electromagnetic, Fewer tags Archive of Merced River Basin Precipitation-Runoff Modeling System, with forecasting, climate-file preparation, and data-visualization tools The U.S. Geological Survey, in cooperation with the California Department of Water Resources (DWR), has constructed a new spatially distributed Precipitation-Runoff Modeling System (PRMS) for the Merced River Basin (Koczot and others, 2021), which is a tributary of the San Joaquin River in California. PRMS is a deterministic, distributed-parameter, physical-process-based modeling system developed to evaluate the response of streamflow and basin hydrology to various combinations of climate and land use (Markstrom and others, 2015). Although further refinement may be required to apply the Merced PRMS for official streamflow forecast operations, this application of PRMS is calibrated with intention to simulate (and... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: California, Climate, Climatology, Draper Climate-Distribution Software (Draper), Geography, All tags... Hydrogeology, Information Sciences, Mariposa, Merced PRMS datasets, Merced River, Object User interface (OUI), PRMS, Precipitation Runoff Modeling System (PRMS), Scientific Investigations Report, Tenaya Lake, USGS Science Data Catalog (SDC), Upper Merced, Water Resources, Yosemite Falls, Yosemite Valley, climate data analysis tools, climate file preparation, climatologyMeteorologyAtmosphere, decision support methods, deterministic modeling, digital elevation models, ensemble streamflow prediction methodology, environment, geographic information systems, geoscientificInformation, geospatial datasets, hydrographic datasets, hydrology, inlandWaters, land surface characteristics, manuals, mathematical modeling, natural resources, physically-based watershed model, river reaches, scientific interpretation, scientific software, snow and ice cover, spatial analysis, streamflow, streamflow modeling and forecasting, study areas, surface-water model, topography, visualization methods, water resources, watershed management, Fewer tags