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Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Consecutive Wet Days This tabular data set represents the average number of consecutive days with measurable precipitation for the period between 1871 and 1997, compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data is from the United States Historical Climatology Network Daily Temperature, Precipitation, and Snow Data for 1871-1997, compiled by the Oak Ridge National Laboratory (ORNL, 1999) and further processed by the USGS (Dave Wolock, written communic., 2001).... Types: Citation; Tags: Conterminous United States, Inlandwaters, NAWQA, NHDPlus, SPARROW, All tags... average consecutive wet days, precipitation, Fewer tags Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: PRISM 30 Year (1961-1990) Monthly Mean of Number of Days of Measurable Precipitation This tabular data set represents the 30 year average (1961-1990) number of days of measurable precipitation per month, compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data for the 30 year average (1961-1990) number of days of measurable precipitation per month was provided by the Environmental Protection Agency and is included with this data set (prism-wetdays-monthly.zip provided by Ryan Hill, EPA, written commun., 2012). Units are days... Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... SPARROW, Wet days, precipitation, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Major Sites of the National Pollutant Discharge Elimination System (NPDES) This tabular data set represents the number and density of major National Pollutant Discharge Elimination System (NPDES) sites, as defined by Environmental Protection Agency (EPA), compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) number and desnity of major sites per individual reach catchments and 2) number and density of major sites accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data was acquired by James Falcone (USGS, written commun., 2010) from the EPA. Reach catchment information characterizes data at the local scale. Reach catchments... Types: Citation; Tags: Catchment, Conterminous United States, NAWQA, NHDPlus, NPDES, All tags... National Pollutant Discharge Elimination System, SPARROW, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Principal Aquifers and Rock Types This tabular data set represents Principal Aquifers and Rock Types compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data is the "Principal Aquifers of the 48 Conterminous United States, Hawaii, Puerto Rico, and the U.S. Virgin Islands," produced by U.S. Geological Survey, 2003. Units are percent of catchment underlain by each Principal Aquifer. Reach catchments accumulated upstream through the river network characterizes cumulative upstream... Types: Citation; Tags: Aquifer rock type, Catchment, Conterminous United States, Inlandwaters, NAWQA, All tags... NHDPlus, Principal aquifers, SPARROW, Fewer tags Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Crop Land Data Layer 2014 This tabular data set represents the percent of land cover classes from the 2014 Crop land Data Layer compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data is the "2014 Crop Land Data Layer" produced by the United States Department of Agriculture (USDA) National Agricultural Statistics Service (NASS, 2015). Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through the river network characterizes... Categories: Data; Types: Citation; Tags: CDL, Catchment, Conterminous United States, Crop Land Data Layer, CropScape, All tags... Inlandwaters, NAWQA, NHDPlus, SPARROW, agriculture, crop cover, crop estimates, cropland, land cover, Fewer tags Upper Colorado River Basin SPARROW model catchments and synthetic stream network - 2017 This data collection consists of a synthetic stream network and associated catchments developed as the foundation for a Spatially Referenced Regressions on Watershed Attributes (SPARROW) dissolved-solids source and transport model for the Upper Colorado River Basin (UCRB). The SPARROW model requires a hydrologically connected representation of a stream network through which loads are transported from an upstream reach to the next reach downstream (Schwarz and others, 2006; Moore and others, 2004). Each stream reach or segment within this synthetic stream network has an associated local drainage area or catchment used to calculate catchment characteristics that may have an effect on loads being modeled. The synthetic... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Catchment, Colorado, Dissolved-solids model, Hydrologic network, All tags... New Mexico, SPARROW, Upper Colorado River Basin, Utah, Watershed, Wyoming, geoscientificInformation, inlandWaters, Fewer tags Catchment-flowline network and selected model inputs for an enhanced and updated spatially referenced statistical assessment of dissolved-solids load sources and transport in streams of the Upper Colorado River Basin This USGS data release consists of the synthetic stream network and associated catchments used to develop spatially referenced regressions on watershed attributes (SPARROW) model of dissolved-solids sources and transport in the Upper Colorado River Basin as well as geology and selected Basin Characterization Model (BCM) data used as input to the model. Types: Citation; Tags: Actual Evapotranspiration, Arizona, Catchment, Climatic Water Deficit, Colorado, All tags... Dissolved-solids model, Excess Water, Geologic Formation, Geology, Groundwater Recharge, Hydrologic network, New Mexico, Potential Evapotranspiration, Precipitation, Runoff, SPARROW, Snowfall, Snowmelt, Snowpack, Soil Water Storage, Sublimation, USGS Science Data Catalog (SDC), Upper Colorado River Basin, Utah, Water Resources, Watershed, Wyoming, geoscientificInformation, inlandWaters, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: National Land Cover Database 2011 (NLCD 2011) This tabular data set represents the percent of land cover classes from the 2011 National Land Cover Dataset compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data is the "National Land Cover Database 2011" produced by the United States Geological Survey (Homer and others, 2011). Units are percent. The "National Land Cover Database 2011" (NLCD 2011) is a 16-class (additional four classes in Alaska only) land cover classification scheme that... Types: Citation; Tags: Arkansas-White_Red, California, Catchment, Conterminous United States, Great Lakes, All tags... Inlandwaters, Lower Mississippi, Missouri, NAWQA, NHDPlus, NLCD 2011, National Land Cover Data set, New England and Mid-Atlantic, Ohio, Pacific Northwest, Rio Grande, Colorado, and Great Basin, SPARROW, Souris-Red-Rainy, South Atlantic-Gulf and Tennessee, Tennessee, Texas Gulf, Upper Mississippi, land cover, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Population Density from U.S. Block-Level Population Density Rasters for 2010 This tabular data set represents population density, persons per square kilometer from 2010 Census block level data, processed by James Falcone (USGS, 2016), compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data for population density was produced by the U.S. Geological Survey (Falcone, 2016). Units are persons per square kilometer. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through... Types: Citation; Tags: 2010 Population density, Catchment, Conterminous United States, Inlandwaters, NAWQA, All tags... NHDPlus, SPARROW, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Hydrologic Landscape Regions This tabular data set represents the percent of Hydrologic Landscape Regions compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data is the "Hydrologic landscape regions of the United States" produced by the United States Geological Survey (Wolock, 2003). Units are percent. The "Hydrologic landscape regions of the United States" are a 20-class classification scheme of noncontiguous regions (HLRs) built on the basis of similarities in land-surface... Types: Citation; Tags: Catchment, Conterminous United States, Hydrologic landscapes, Inlandwaters, NAWQA, All tags... NHDPlus, NLCD 2001, SPARROW, land cover, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Population Density from U.S. Block-Level Population Density Rasters for 1990 This tabular data set represents population density, persons per square kilometer from 1990 Census block level data, processed by James Falcone (USGS, 2016), compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data for population density was produced by the U.S. Geological Survey (Falcone, 2016). Units are persons per square kilometer. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through... Types: Citation; Tags: 1990 Population density, Catchment, Conterminous United States, Inlandwaters, NAWQA, All tags... NHDPlus, SPARROW, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Percent NLCD 2011 Tree Canopy This tabular data set represents percent NLCD 2011 Tree Canopy compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data for percent NLCD 2011 Tree Canopy was produced by the United States Department of Agriculture (Tipton and others, 2012). Units are percent. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through the river network characterizes cumulative upstream conditions. Network-accumulated... Types: Citation; Tags: Arkansas-White_Red, California, Catchment, Conterminous United States, Great Lakes, All tags... Inlandwaters, Lower Mississippi, Missouri, NAWQA, NHDPlus, New England and Mid-Atlantic, Ohio, Pacific Northwest, Rio Grande, Colorado, and Great Basin, SPARROW, Souris-Red-Rainy, South Atlantic-Gulf and Tennessee, Tennessee, Texas Gulf, Upper Mississippi, percent NLCD 2011 Tree Canopy in 100 meter riparian buffer, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Topographic Wetness Index This tabular data set represents average topgraphic wetness index compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The Topgraphic Wetness Index is a steady state index that’s used to predict areas susceptible to saturated land surfaces and areas that carry the potential to produce overland flow. The index is represented by ln (a/tan(beta)), where ln is the Napierian logarithm, a is the upslope area per unit contour length, and tan/(beta) is the slope... Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... SPARROW, average topgraphic wetness index, saturated overland flow, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Estimated 30 Year, 1971-2000, Mean Annual Watershed Rainfall and Runoff factor ("R factor" of Universal Soil Loss Equation) This data set represents the mean annual average for the Rainfall and Runoff factor ("R factor" of Universal Soil Loss Equation) for the period 1971-2000 compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data were produced by the PRISM Group at Oregon State University. Units for the Rainfall and Runoff factor are hundreds of foot-ton force-inch/acre-hour per year. Reach catchment information characterizes data at the local scale. Reach catchments... Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... SPARROW, rainfall runoff factor, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Percent of Irrigated Agriculture, 2012 MIrAD data This tabular data set represents percent of irrigated agriculture, based on 2012 MODIS Irrigated Agricultural Data (MIrAD) data compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data for percent of irrigated agriculture, 2012 MIrAD data was produced by the United States Geological Survey (USGS, 2015). Units are percent. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through the river... Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... SPARROW, percent of irrigated agriculture, 2012 MIrAD data, Fewer tags Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Estimated Mean Annual Snow as a Percent of Total Precipitation This tabular data set represents estimated mean annual snow as a percent of total precipitation, 1905-2002 compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data for estimated mean annual snow as a percent of total precipitation was produced by the USGS (Wolock, written communic., 2012) and processed based on the methods described by McCabe and Wolock (USGS, 2009). Units are percent. Reach catchment information characterizes data at the local... Types: Citation; Tags: Conterminous United States, Inlandwaters, NAWQA, NHDPlus, SPARROW, All tags... snow, snow percent of total precipitation, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: National Atmospheric Deposition Program (NADP) National Trends Network (NTN) 1985-2014 This data set represents National Atmospheric Deposition Program (NADP) National Trends Network average of annual precipitation-weighted mean atmospheric deposition for seven select constituents from years 1985-2014 compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. The seven constiuents presented here are: Calcium, Nitrate, Sulfate, Inorganic Nitrogen, Magnesium, Ammonium, and Chloride. Units are kilograms per hectare. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data was produced by... Types: Citation; Tags: Ammonium, Calcium, Catchment, Chloride, Conterminous United States, All tags... Inlandwaters, Inorganic nitrogen, Magnesium, NAWQA, NHDPlus, National Atmospheric Deposition Program, Nitrate, SPARROW, Sulfate, atmospheric wet deposition, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Base Flow Index This tabular data set represents base flow index (BFI) compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data is the "Base-flow index grid for the conterminous United States" produced by the United States Geological Survey (Wolock, 2003). Units are percent. Base flow is the component of streamflow that can be attributed to ground-water discharge into streams. The BFI is the ratio of base flow to total flow, expressed as a percentage. Reach... Types: Citation; Tags: Arkansas-White_Red, California, Catchment, Conterminous United States, Great Lakes, All tags... Inlandwaters, Lower Mississippi, Missouri, NAWQA, NHDPlus, New England and Mid-Atlantic, Ohio, Pacific Northwest, Rio Grande, Colorado, and Great Basin, SPARROW, Souris-Red-Rainy, South Atlantic-Gulf and Tennessee, Tennessee, Texas Gulf, Upper Mississippi, base flow index, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Select Basin Characteristics This tabular data set represents select basin characteristics compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. The select variables in this data set are parsed out into six different file themes as follows: BASIN_CHAR_XXX_CONUS.txt (where XXX is CAT flowline catchment value, ACC is divergence routed accumulated value, and TOT is total upstream routed accumulated value) contains information on stream slope (percent rise, also referred to as the percent slope), basin slope (percent rise, also referred to as the percent slope), basin area, minimum... Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... SPARROW, TIGER roads, basin area, basin elevations, basin slope, flowline reach type, road density, sinuosity, stream density, stream length, stream slope, Fewer tags Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: National Land Cover Database 2006 (NLCD 2006) This tabular data set represents the percent of land cover classes from the 2006 National Land Cover Dataset compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data is the "National Land Cover Database 2006" produced by the United States Geological Survey (Fry and others, 2011). Units are percent. The "National Land Cover Database 2006" (NLCD 2006) is a 16-class (additional four classes in Alaska only) land cover classification scheme that... Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... NLCD 2006, National Land Cover Data set, SPARROW, land cover, Fewer tags 1 2 3 4 »