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Assessing spatial variability of nutrients, phytoplankton, and related water-quality constituents in the San Francisco Bay, California: 2021-2022 High-resolution mapping surveys The dataset documents the spatial and temporal variability of nutrients and related water quality parameters at high spatial resolution in the San Francisco Bay of California, USA in 2021 and 2022. The dataset includes nitrate, temperature, conductivity, dissolved oxygen, and chlorophyll as well as information about phytoplankton community composition. Data-collection cruises were conducted under different environmental/flow conditions. Version history: On 3/15/24, the provisional data files hosted on this webpage were removed, and replaced with updated finalized files. Categories: Data; Tags: California, San Francisco Bay, San Pablo Bay, Suisun Bay, USGS Science Data Catalog (SDC), All tags... United States, bay, biogeochemistry, biota, drinking water use, environment, high frequency, high-resolution, hydrogeology, inlandWaters, nutrient content (water), nutrients, phytoplankton, public supply water use, real-time, statistical analysis, visualization methods, water quality, water quality, Fewer tags Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah The geochemical data included here were generated as part of a Technical Assistance Agreement between the U.S. Geological Survey (USGS) and Rio Tinto Exploration based in Salt Lake City, Utah. Beginning in November of 2015, we began a project to reanalyze up to 60,000 archived sample splits originally collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) project from selected areas in Arizona, California, Idaho, Montana, Nevada, New Mexico, and Utah. A small amount (approximately 0.25 g) of sieved <75 micron sample material was retrieved from the USGS National Geochemical Sample Archive for geochemical analysis. These samples were analyzed... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, California, Hydrogeochemistry and Stream Sediment Reconnaissance, Idaho, Montana, All tags... NURE, NURE-HSSR, National Geochemical Sample Archive, National Uranium Resource Evaluation, Nevada, New Mexico, USGS Science Data Catalog (SDC), United States, Utah, chemical analysis, environmental geochemistry, exploration geochemistry, geochemical data, geochemistry, lake sediment, natural resource exploration, sediment chemistry, sediment geochemistry, soil, soil chemistry, spring sediment, stream sediment, unconsolidated deposits, uranium, Fewer tags Wetland Moist Soil Seed Maps for the Central Valley of California 2007-2017 We produced a series of maps of moist soil seed plants within managed wetlands in the Central Valley of California from 2007-2011 & 2013-2017. Moist soil seed plants, such as swamp timothy (Crypsis schoenoides) and watergrass (Echinochloa crusgallim), are a critical food source for migratory birds. Vegetation maps were created by classifying Landsat imagery from 2007-2011 and 2013-2017. A support vector machine learning classifier was trained using phenology metrics of moist soil seed plants, emergent vegetation, water, and other land cover observed via field surveys and high resolution imagery. Productivity maps of swamp timothy were based on a regression model of seed head weight with Landsat vegetation indices.... Tags: California, Central Valley, Ecology, Environmental Health, Geography, All tags... Information Sciences, Remote Sensing, Sacramento, San Joaquin, USGS Science Data Catalog (SDC), Water Resources, Wildlife Biology, biota, environment, habitats, image collections, multispectral imaging, remote sensing, wetland ecosystems, Fewer tags Near-real-time Herbaceous Annual Cover in the Sagebrush Ecosystem, USA, July 2018 This dataset provides a near-real-time estimate of 2018 herbaceous annual cover with an emphasis on annual grass (Boyte and Wylie. 2016. Near-real-time cheatgrass percent cover in the Northern Great Basin, USA, 2015. Rangelands 38:278-284.) This estimate was based on remotely sensed enhanced Moderate Resolution Imaging Spectroradiometer (eMODIS) Normalized Difference Vegetation Index (NDVI) data gathered through July 1, 2018. This is the second iteration of an early estimate of herbaceous annual cover for 2018 over the same geographic area. The previous dataset used eMODIS NDVI data gathered through May 1 (https://doi.org/10.5066/P9KSR9Z4). The pixel values for this most recent estimate ranged from 0 to100% with... Tags: Bromus rubens, Bromus tectorum, California, Colorado, Desert, All tags... Ecology, Geography, Great Basin, Idaho, Land Use Change, Montana, NDVI, Nevada, Oregon, Remote Sensing, Snake River Plain, Taeniatherum caput-medusae, USGS Science Data Catalog (SDC), United States, Utah, Ventenata, Wyoming, annual grass, annual herbaceous, cheatgrass, fire, geoscientificInformation, habitat, invasive, medusahead, red brome, sagebrush, satellite, ventenata dubia, western U.S., Fewer tags Digital database for the geologic map of the Vidal, California, and Parker SW, California-Arizona quadrangles This geologic database is a digitized version of the original 1:24,000-scale analog geologic map titled "Geologic map of the Vidal, California, and Parker SW, California-Arizona quadrangles", published by the U.S. Geological Survey (USGS) in 1980. The map area straddles the Arizona-California border, and is located approximately 9.0 km (5.6 mi) west-southwest of Parker, CA, immediately south of the unincorporated communities of Vidal and Vidal Junction, CA. The map area includes the northern Riverside Mountains, which contain a prominent suite of Permian, Mesozoic, and potentially Precambrian metamorphic and metasedimentary rocks. These rocks predominantly consist of gneisses, schists, limestones, and dolomites,... Tags: Alluvium, Andesite, Arizona, Breccia, California, All tags... Colorado River Indian Reservation, Dolomite, GMEG (Geology, Minerals, Energy, and Geophysics Science Center), GeMS (Geologic Map Schema), Gneiss, Granite, Gravel, Intermediate volcanic rock, LOCOS (Geologic Mapping of the Lower Colorado River System), Limestone, Mafic volcanic rock, NCGMP (National Cooperative Geologic Mapping Program), NGMDB (National Geologic Map Database), Parker, Parker SW, Rhyolite, Riverside Mountains, Sand, Tufa, Tuff, USGI (U.S. GeoFramework Initiative), USGS Science Data Catalog (SDC), Vidal, bedrock geologic units, digitization, faulting (geologic), geologic contacts, geologic history, geologic maps, geoscientificInformation, igneous rocks, metamorphic rocks, plutonic rocks, sedimentary rocks, unconsolidated deposits, volcanic rocks, Fewer tags Soil Biogeochemical Data from a Marine Terrace Soil Climo-Chronosequence Comparison The storage and persistence of soil organic matter (SOM) is of critical importance to soil health, and to the terrestrial carbon cycle with implications for long-term climate change. To better understand the spatio-temporal controls on SOM, we have developed a new dataset spanning two previously described marine terrace soil chronosequences from northern, CA, USA: the Santa Cruz and the Mattole River chronosequences. Each of these sites, is comprised of several terraces surfaces that span at least 200 ka of soil development. The sites differ with regard to local precipitation, with the Mattole site receiving nearly double the mean annual precipitation of the Santa Cruz site. During the period from 2011 through 2016,... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Geochemistry, Land Use Change, Land Use Change, Petrolia, All tags... Santa Cruz, Soil Sciences, Soil Sciences, USGS Science Data Catalog (SDC), carbon, elemental chemistry, geoscientificInformation, mineralogy, radiocarbon, soil, surface area, Fewer tags DSWEmod surface water map composites generated from daily MODIS images - California USGS researchers with the Patterns in the Landscape – Analyses of Cause and Effect (PLACE) project are releasing a collection of high-frequency surface water map composites derived from daily Moderate Resolution Imaging Spectroradiometer (MODIS) imagery. Using Google Earth Engine, the team developed customized image processing steps and adapted the Dynamic Surface Water Extent (DSWE) to generate surface water map composites in California for 2003-2019 at a 250-m pixel resolution. Daily maps were merged to create 6, 3, 2, and 1 composite(s) per month corresponding to approximately 5-day, 10-day, 15-day, and monthly products, respectively. The resulting maps are available as downloadable files for each year. Each... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Dynamic Surface Water Extent, Geography, Hydrology, Inundation, All tags... Remote Sensing, USGS Science Data Catalog (SDC), environment, flooding, geoscientificInformation, imageryBaseMapsEarthCover, inland waterways, inlandWaters, multispectral imaging, surface water (non-marine), Fewer tags Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, July 2021, (ver 2.0, January 2022) These datasets provide early estimates of 2021 fractional cover for exotic annual grass (EAG) species and a native perennial grass predicted on July 1 using satellite observation data available no later than June 28th. Four fractional cover maps comprise this release, along with the corresponding confidence maps, for: 1) a group of 17 species of EAGs (i.e., Bromus arvensis L., Bromus briziformis, Bromus catharticus Vahl, Bromus commutatus, Bromus diandrus, Bromus hordeaceus L., Bromus hordeaceus spp. hordeaceus, Bromus japonicus, Bromus madritensis L., Bromus madritensis L. ssp. rubens (L.) Duvin, Bromus L., Bromus racemosus, Bromus rubens L., Bromus secalinus L., Bromus tectorum L., Bromus texensis (Shear) Hitchc.,... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Arizona, California, Colorado, Great Basin, Harmonized Landsat Sentinel, All tags... Idaho, Kansas, Montana, NDVI, Nebraska, Nevada, New Mexico, North Dakota, Oklahoma, Oregon, Poa secunda, South Dakota, Texas, Texas brome, USGS Science Data Catalog (SDC), United States, Utah, Washington, Wyoming, annual grass, annual herbaceous, cheatgrass, exotic, invasive species, medusahead, nonindigenous species, noxious, perennial grass, red brome, remote sensing, rye brome, sagebrush, soft brome, western United States, Fewer tags PlanetScope and DESIS spectral library of agricultural crops in California's Central Valley for the 2020 growing season Here we provide information for the PlanetScope and d Deutsches Zentrum fur Luft- und Raumfahrt (DLR) Earth Sensing Imaging Spectrometer (DESIS) Derived Spectral Library of Agricultural Crops in California which was developed using PlanetScope Dove-R high spatial resolution data and DESIS hyperspectral data acquired for 2020. PlanetScope images are available through Planet Labs (2022). The DESIS images used for this dataset are available through the German Aerospace Center and Teledyne Brown (2022). The crop type data and confidence layer for 2020 can be accessed through the United States Department of Agriculture National Agricultural Statistics Service (2022). The PlanetScope and DESIS Derived Spectral Library... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Land Use Change, Remote Sensing, USGS Science Data Catalog (SDC), United States, All tags... agriculture, biota, hyperspectral imaging, remote sensing, Fewer tags County-level maps of cropland surface water inundation measured from Landsat and MODIS This dataset represents a summary of potential cropland inundation for the state of California applying high-frequency surface water map composites derived from two satellite remote sensing platforms (Landsat and Moderate Resolution Imaging Spectroradiometer [MODIS]) with high-quality cropland maps generated by the California Department of Water Resources (DWR). Using Google Earth Engine, we examined inundation dynamics in California croplands from 2003 –2020 by intersecting monthly surface water maps (n=216 months) with mapped locations of precipitation amounts, rice, field, truck (which comprises truck, nursery, and berry crops), deciduous (deciduous fruits and nuts), citrus (citrus and subtropical), vineyards,... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: California, Geography, Hydrology, Landsat, MODIS, All tags... Remote Sensing, USGS Science Data Catalog (SDC), agricultural sites, agriculture, controlled flooding, farming, floods, hazard preparedness, image collections, imageryBaseMapsEarthCover, irrigation, multispectral imaging, Fewer tags GIS, supplemental data table, and references for focus areas of potential domestic resources of critical minerals and related commodities in the United States and Puerto Rico (ver. 2.0, April 2024) In response to Executive Order 13817 of December 20, 2017, the U.S. Geological Survey (USGS) coordinated with the Bureau of Land Management (BLM) to identify 36 nonfuel minerals or mineral materials considered critical to the economic and national security of the United States (U.S.) (https://pubs.usgs.gov/of/2018/1021/ofr20181021.pdf). Acquiring information on possible domestic sources of these critical minerals is the rationale for the USGS Earth Mapping Resources Initiative (Earth MRI). The program, which partners the USGS with State Geological Surveys, Federal agencies, and the private sector, aims to collect new geological, geophysical, and topographic (lidar) data in key areas of the U.S. to stimulate mineral... Categories: Data, Data Release - Revised; Tags: Alabama, Alaska, Arizona, Arkansas, California, All tags... Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, USGS Science Data Catalog (SDC), United States, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, aluminum, antimony, arsenic, barite, beryllium, bismuth, cesium, chromium, cobalt, critical minerals, economic geology, fluorspar, gallium, geoscientificInformation, geospatial datasets, germanium, graphite, hafnium, indium, lithium, magnesium, manganese, mineral deposits, nickel, niobium, platinum group elements (PGE), potash, rare earth elements (REE), rhenium, rubidium, scandium, strontium, tantalum, tellurium, tin, titanium, tungsten, uranium, vanadium, zinc, zirconium, Fewer tags Grid Cells and Modeled Groundwater Levels to Characterize Hydrologic Conditions for Public-supply Aquifers in California's Central Valley, 1990-2020 This data release documents grid cells and modeled groundwater levels for hydrologic characterization of aquifer areas used for public drinking-water supply in California’s Central Valley from 1990 to 2020. Observations of spring groundwater level (median depth to groundwater measured from January through April) were calculated for selected wells from the California Department of Water Resources (DWR) periodic groundwater level measurements dataset (DWR, 2021) that had data for >50% of years from 1990 to 2020. Spring groundwater levels for years without data were imputed by multiple linear regression on the top five most correlated records within the same Central Valley subregion (Sacramento Valley, San Joaquin... Tags: California, Central Valley, Hydrology, Sacramento Valley, San Joaquin Basin, All tags... San Joaquin Valley, Tulare Basin, USGS Science Data Catalog (SDC), Water Quality, environment, groundwater, groundwater level, inlandWaters, kriging, Fewer tags Groundwater-quality data in the Mokelumne, Cosumnes, and American River Watersheds Shallow Aquifer Study Unit, 2016-2017: Results from the California GAMA Priority Basin Project The U.S. Geological Survey collected groundwater samples from 67 wells and 1 spring used for domestic and small system drinking water supplies in Placer, El Dorado, Amador, and Calaveras Counties, California in 2016-2017. The sites were sampled for the Mokelumne, Cosumnes, and American River Watersheds (MCAW) Shallow Aquifer Study Unit of the California State Water Resources Control Board Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project’s assessment of the quality of groundwater resources used for domestic and small system drinking water supplies. Domestic and small-system wells commonly are screened at shallower depths than public-supply wells. The MCAW study unit covered the... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Amador County, Calaveras County, California, El Dorado County, Environment, All tags... GAMA, Groundwater, Groundwater Ambient Monitoring and Assessment Program, Placer County, USGS Science Data Catalog (SDC), United States, Water Quality, Water-Quality, environment, geoscientificInformation, Fewer tags Geospatial Data for Object-Based High-Resolution Classification of Conifers within Greater Sage-Grouse Habitat across Nevada and a Portion of Northeastern California (ver. 2.0, July 2018) These products were developed to provide scientific and correspondingly spatially explicit information regarding the distribution and abundance of conifers (namely, singleleaf pinyon (Pinus monophylla), Utah juniper (Juniperus osteosperma), and western juniper (Juniperus occidentalis)) in Nevada and portions of northeastern California. Encroachment of these trees into sagebrush ecosystems of the Great Basin can present a threat to populations of greater sage-grouse (Centrocercus urophasianus). These data provide land managers and other interested parties with a high-resolution representation of conifers across the range of sage-grouse habitat in Nevada and northeastern California that can be used for a variety of... Categories: Data Release - Revised; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Biota, California, Conifers, Environment, Great Basin, All tags... Land cover, Nevada, Trees, USGS Science Data Catalog (SDC), biota, environment, Fewer tags Digital subsurface data from previously published maps of the base and thickness of post-Eocene continental deposits in the Sacramento Valley, California Post-Eocene (predominantly Pliocene) continental sedimentary rocks of the Sacramento Valley, CA are up to 1,200 m thick beneath the valley. These rocks contain most of the fresh ground water in the valley, forming a key component of the total water budget for the valley. A 1974 study by the U.S. Geological Survey was an early attempt to develop detailed knowledge of the subsurface geology of the Sacramento Valley. The study delineated the configuration of the base post-Eocene continental sedimentary rocks of the Sacramento Valley and mapped the thickness of those deposits. This digital dataset contains spatial datasets corresponding to the contoured base and thickness of the post-Eocene continental sedimentary rocks... Categories: Data; Tags: California, Central Valley aquifer system, Sacramento, Sedimentology, Stratigraphy, All tags... USGS Science Data Catalog (SDC), Water Resources, elevation, geologic structure, inlandWaters, structure contours, Fewer tags Detection/non-detection data on territorial pairs of golden eagles in coastal southern California, 2016-2017 This dataset contains detection-nondetection data for territorial pairs of Golden Eagles at survey sites randomly selected from a grid of equal-sized (13.9 km2) hexagonal sample cells overlaid across the region of interest in Coastal Southern California during 2016 and 2017. We partitioned surveys within seasons based on approximate transition dates for stages in the breeding cycle of golden eagles in the study region: courtship (15 Dec-28 Feb), incubation (1 Mar-30 Apr), nestling (1 May-15 Jun), and the fledging-dependency period (16 June-Jul 30), totaling 4 possible sampling periods per year. This dataset also describes the proportion of land-cover types from four general categories (urban, open grassland, scrub... Categories: Data; Tags: Aquila chrysaetos, California, California birds, Ecology, Land Use Change, All tags... N-mixture model, Southern California, USGS Science Data Catalog (SDC), Wildlife Biology, animal behavior, biota, birds, detection probability, environment, ethology, farming, golden eagle, habitats, occupancy, ornithology, population and community ecology, population dynamics, wildlife biology, Fewer tags Data for: A conservation planning tool for greater sage-grouse using indices of species distribution, resilience, and resistance Managers require quantitative yet tractable tools that can identify areas for restoration yielding effective benefits for targeted wildlife species and the ecosystems they inhabit. A spatially explicit conservation planning tool that guides effective sagebrush restoration for sage-grouse can be made more effective by integrating baseline maps describing existing (pre-restoration) habitat suitability, and the distribution and abundance of breeding sage-grouse. Accordingly, we provide two rasters. The first is a floating point raster file informed by lek data, and derived from: 1) utilization distributions weighted by lek attendance, and 2) a non-linear probability of space-use relative to distance to lek. The second... Tags: Bi-State, California, Conservation Planning Tool, Nevada, USGS Science Data Catalog (SDC), All tags... biota, environment, greater sage-grouse, Fewer tags Data Used to Calculate Flow Logs for Wells in the Wilson Creek and Crafton Subareas, Yucaipa, California, 2004 This dataset contains velocity and flow log data collected in 2004 for two Yucaipa Valley Water District (YVWD) public-supply wells, YVWD 55 and YVWD 56. Data were collected using the tracer-pulse method described in Izbicki and others (1999), in which a pulse of a rhodamine dye tracer is injected to a known depth in the well and the travel time of the tracer to a detector on the surface is measured. Velocity and cumulative flow are calculated from the dye-arrival times using methods described by Izbicki and others (1999). Flow for well YVWD 55 was calculated using the pump within the screened interval, which captured flow from above and below the pump intake. Flow for well YVWD 56 was calculated using the pump... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Hydrology, USGS Science Data Catalog (SDC), Yucaipa, flow tracer studies, All tags... groundwater, groundwater flow, Fewer tags Remote Sensing Shrub/Grass National Land Cover Database (NLCD) Back-in-Time (BIT) Products for the Western U.S., 1985 - 2018 The need to monitor change in sagebrush steppe is urgent due to the increasing impacts of climate change, shifting fire regimes, and management practices on ecosystem health. Remote sensing provides a cost-effective and reliable method for monitoring change through time and attributing changes to drivers. We report an automated method of mapping rangeland fractional component cover over a large portion of the Northern Great Basin, USA, from 1986 to 2016 using a dense Landsat imagery time series. 2012 was excluded from the time-series due to a lack of quality imagery. Our method improved upon the traditional change vector method by considering the legacy of change at each pixel. We evaluate cover trends stratified... Tags: AZ, Arizona, Arizona Plateau, Black Hills, Blue Mountains, All tags... CA, CO, California, Chihuahuan Desert, Colorado, Colorado Plateau, Columbia Plateau, Grand Canyon, Great Basin, Gunnison, ID, Idaho, Land Use Change, MT, Middle Rockies, Montana, ND, NE, NM, NV, Nebraska, Nevada, New Mexico, North Dakota, Northern Mountainous, OR, Oregon, Rocky Mountains, SD, Sonoran Desert, South Dakota, Southwest Tablelands, TX, Texas, Three Forks, USGS Science Data Catalog (SDC), UT, United States, Utah, WA, WY, Wasatch, Washington, Western US, Wyoming, Yellowstone, annual herbaceous, back-in-time, bare ground, big sagebrush, biota, climate change, environment, geoscientificInformation, grass, grassland change, herbaceous, imageryBaseMapsEarthCover, litter, rangeland, rangeland management, sagebrush, shrub, shrubland, shrubland change, shrubland ecosystems, shrublands, terrestrial ecosystems, time series, trends, vegetation, vegetation change, Fewer tags Nocturnal Incubation Recess and Flushing Behavior by Duck Hens Nesting in Grizzly Island Wildlife Area 2015-2018 This dataset describes nocturnal incubation recess behavior for mallard and gadwall hens nesting in Grizzly Island Wildlife Area in breeding seasons 2015-2018. It includes the frequency, start time and duration of recesses, and details a method for determining whether a recess was initiated in response to a predator at the nest using nest temperature data. These data support the following publication: Croston, R.L., Peterson, S.E., Hartman, C.A., Herzog, M.P., Feldheim, C.L., Casazza, M.L., Ackerman, J.T., 2021. Nocturnal incubation recess and flushing behavior by duck hens. Ecology and Evolution Categories: Data; Tags: California, Suisun Marsh, USGS Science Data Catalog (SDC), Wildlife Biology, animal behavior, All tags... biota, duck incubation recess, Fewer tags « 1 ... 3 4 5 6 7 ... 16 »