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This dataset contains watershed means of estimated percent impervious surfaces for three time periods: 1992, 2002, and 2012. Estimates are based on coefficients derived from comparing land use of the 2012 NAWQA Wall-to-wall Anthropogenic Land-use Trends (NWALT) product to the 2011 National Land Cover Database (NLCD) imperviousness, then applying those coefficients to previous years (1974-2002) of the NWALT dataset.
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The dataset contains estimates for total phosphorus flux from wastewater treatment plants that discharge to surface water within the Red River of the North Basin in the United States and subbasins. Shapefiles defining the subbasins are available as part of the same data release in which these data are published. Estimates of wastewater treatment plant total phosphorus flux (or load) were calculated by Tammy Ivanhnenko for the years 1978, 1980, 1982, 1984, 1986, 1988, 1990, 1992, 1996, 2000, 2004, 2008, and 2012. Flux estimates were based on the average discharge from the wastewater treatment plants and treatment level, both reported as part of the U.S. Environmental Protection Agency's Clean Watershed Needs Survey,...
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This dataset consists of a series of rasters covering the conterminous United States. Each raster is a one kilometer (km) grid for 18 selected Census of Agriculture statistics mapped to land use pixels for the time period 1950 to 2012. A supplemental set of 9 statistics mapped at the entire county level are also provided as 1-km rasters. The rasters are posted as ArcGIS grids. The statistics represent values for crops, livestock, irrigation, fertilizer, and manure usage. Most statistics are mapped for all 14 Census of Agriculture reporting years in that time frame: 1950, 1954, 1959, 1964, 1969, 1974, 1978, 1982, 1987, 1992, 1997, 2002, 2007, and 2012.
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This data shows select streamgage locations throughout the Red River of the North Basin upstream of Emerson, Manitoba, and basin outlines for eight subbasins..
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This dataset contains values of normal reservoir storage in units of acre-feet per km2, for three time periods: 1992, 2002, and 2012. Values are derived from a slightly-modified version of the National Inventory of Dams (NID) 2013 dataset, for which approximately 10% of records had the dam completion date estimated.
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This dataset contains values of soils, climate, hydrologic, topographic, and other geographic characteristics such as drainage area. These are considered "static" characteristics, which do not change over the time period of this study.
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This dataset provides estimates of annual and seasonal precipitation for selected Chesapeake Bay watersheds. Season 1 is November-February; season 2 is March-June; and season 3 is July-October.
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These data report the percent of crop acreage, within each basin (basins 1-8, see accompanying shapefiles), enrolled in the Conservation Reserve Program (CRP).
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These data describe the percent of cropland harvested as wheat, corn, and soybean within each basin (basins 1-8, see accompanying shapefiles). Data are available for other crops; however, these three were chosen because wheat is a traditional crop that has been grown for a long time in the Basin and corn and soybeans have increased in recent times because of wetter conditions, the demand for biofuels, and advances in breeding short-season, drought-tolerant crops. The data come from the National Agricultural Statistics Service (NASS) Census of Agriculture (COA) and have estimates for 1974, 1978, 1982, 1986, 1992, 1997, 2002, 2007, and 2012. Years with missing data were estimated estimated using multivariate imputation...
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This product contains 1,297 watershed boundaries for water quality study sites of the U.S. Geological Survey (USGS) National Water Quality Program (NWQP) Surface Water Trends project. These include sites where water quality information was collected by both USGS and non-USGS agencies. The data consist of 1,285 boundaries in the conterminous United States, and 12 in Puerto Rico. Twenty-seven percent of boundaries were assembled from other efforts within the USGS which are using the same sites, and 73 percent of boundaries were created new for this project. The data are posted as a single shapefile with separate polygons for each boundary.
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This dataset is a categorical mapping of estimated mean building heights, by Census block group, in shapefile format for the conterminous United States. The data were derived from the NASA Shuttle Radar Topography Mission, which collected “first return” (top of canopy and buildings) radar data at 30-m resolution in February, 2000 aboard the Space Shuttle Endeavor. These data were processed here to estimate building heights nationally, and then aggregated to block group boundaries. The block groups were then categorized into six classes, ranging from “Low” to “Very High”, based on the mean and standard deviation breakpoints of the data. The data were evaluated in several ways, to include comparing them to a reference...
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This product consists of 29 datasets of tabular data and associated metadata for watershed characteristics of 1,530 study sites of the Surface Water Trends (SWT) project of the U.S. Geological Survey’s (USGS) National Water Quality Program (NWQP). The project is conducting national studies of trends in water quality of streams and rivers for periods ranging from 10 to 40 years, between 1972 and 2012. The data here include both static and time-series characteristics. Static data include primarily physical characteristics which have changed little over this period, such as geology, soils, and topography. Time-series data represent characteristics which may or may not have changed over time, such as land use, agricultural...
Categories: Data; Types: Citation; Tags: Atmospheric Deposition, Basin Morphology, Census of Agriculture, Conterminous US, Crop Practices, All tags...
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The dataset contains estimates for total nitrogen and total phosphorus loads from point sources, combined sewer overflows, wastewater treatment plants that discharge to surface water for selected Chesapeake Bay watersheds. For source information, please refer to the process steps in this metadata report.
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These data report the percent of agricultural land, within each selected Chesapeake Bay watershed, that is enrolled in the Conservation Reserve Program (CRP), based on county-level data for each year from the U.S. Department of Agriculture Farm Service Agency.
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This dataset is available from the typeName 'NWC:gagesii_basins' in the referenced Web Feature Service. This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES, which was published as a Data Paper on the journal Ecology's website (Falcone and others, 2010b) in 2010. The GAGES II dataset consists of gages which have had either 20+ complete years (not necessarily continuous) of discharge record since 1950, or are currently active, as of water year 2009, and whose watersheds lie within the United States,...
Categories: Data; Types: Citation, Map Service, OGC WFS Layer; Tags: Alabama, Alaska, All 50 states, Arizona, Arkansas, All tags...
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This dataset contains values of the Palmer Hydrological Drought Index (PHDI) for annual and seasonal periods from 1985-2012. Values are derived from data based on National Climatic Data Center (NCDC) climate divisions, of which there are 344 in the U.S.
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Phosphorus estimates, from fertilizer and manure, for the period 1970-2012 for eight subbasins (see accompanying shapefiles) of the Red River of the North Basin in kilograms per square kilometer.


    map background search result map search result map Conservation Reserve Program Estimates Red River of the North Basin Fertilizer Total Phosphorus Estimates Red Red River of the North Basin Land Use Estimates Red River of the North Basin Monthly Mean Precipitation Red River of the North Basin Wastewater Treatment Plant Total Phosphorus Flux Load Estimates Red River of the North Basin Wheat Corn Soy Estimates Red River of the North Basin National 1-kilometer rasters of selected Census of Agriculture statistics allocated to land use for the time period 1950 to 2012 U.S. national categorical mapping of building heights by block group from Shuttle Radar Topography Mission data Nutrient contributions from point sources, combined sewer overflows, and wastewater treatment plants for selected Chesapeake Bay watersheds Streamgage and basin outline shapefiles for the Red River of the North Percent of land in agricultural production and developed for selected Chesapeake Bay watersheds Seasonal precipitation for selected Chesapeake Bay watersheds Palmer Hydrological Drought Index (PHDI) values for selected Chesapeake Bay watersheds Static soils, climate, hydrologic, topographic, and geographic characteristics for selected Chesapeake Bay watersheds Reservoir storage for selected Chesapeake Bay watersheds Percent impervious surface for selected Chesapeake Bay watersheds Percent agricultural land enrolled in the Conservation Reserve Program for selected Chesapeake Bay watersheds Watershed boundaries for study sites of the U.S. Geological Survey Surface Water Trends project Watershed characteristics for study sites of the Surface Water Trends project, National Water Quality Program Conservation Reserve Program Estimates Red River of the North Basin Fertilizer Total Phosphorus Estimates Red Red River of the North Basin Land Use Estimates Red River of the North Basin Monthly Mean Precipitation Red River of the North Basin Wastewater Treatment Plant Total Phosphorus Flux Load Estimates Red River of the North Basin Wheat Corn Soy Estimates Red River of the North Basin Streamgage and basin outline shapefiles for the Red River of the North Nutrient contributions from point sources, combined sewer overflows, and wastewater treatment plants for selected Chesapeake Bay watersheds Percent of land in agricultural production and developed for selected Chesapeake Bay watersheds Seasonal precipitation for selected Chesapeake Bay watersheds Palmer Hydrological Drought Index (PHDI) values for selected Chesapeake Bay watersheds Static soils, climate, hydrologic, topographic, and geographic characteristics for selected Chesapeake Bay watersheds Reservoir storage for selected Chesapeake Bay watersheds Percent impervious surface for selected Chesapeake Bay watersheds Percent agricultural land enrolled in the Conservation Reserve Program for selected Chesapeake Bay watersheds National 1-kilometer rasters of selected Census of Agriculture statistics allocated to land use for the time period 1950 to 2012 U.S. national categorical mapping of building heights by block group from Shuttle Radar Topography Mission data Watershed characteristics for study sites of the Surface Water Trends project, National Water Quality Program Watershed boundaries for study sites of the U.S. Geological Survey Surface Water Trends project