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Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Contact Time

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:46 AM

This tabular data set represents contact time, the length of time it takes for water to drain along subsurface flow paths to the stream, compiled for two spatial components of the NHDPlus version...

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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 2000

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:21 AM

This tabular data set represents population density, persons per square kilometer from 2000Census block level data, processed by James Falcone (USGS, 2016), compiled for two spatial components of...

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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

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:31 AM

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...

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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

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:24 AM

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...

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xml

Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Estimated Percent Presence of the Soil Restrictive Layers on Agricultural Land

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:27 AM

This tabular data set represents the estimated percent presence of the soil restrictive layer on agricultural land compiled for two spatial components of the NHDPlus version 2 data suite...

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Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: 30 Year Average (1961-1990) of Minimum Monthly Precipitation in mm

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:30 AM

This tabular data set represents 30 year average (1961-1990) of minimum monthly precipitation in millimeters compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for...

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xml

Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Bedrock Permeability Classes

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:33 AM

This tabular data set represents bedrock permeability classes compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual...

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Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Estimated Rate of Toxicity Weighted Use on Agricultural Land, 2009

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 06:44 AM

This tabular data set represents the estimated toxicity weighted use of pesticides on fish, benthic invertebrates and cladocerans on agricultural land in kilograms per square kilometer, 2009...

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Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Topographic Wetness Index

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:38 AM

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)...

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Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: Average Monthly Runoff (mm) from McCabe and Wolock's Runoff Model Over Period of Record, 1951-2000

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:22 AM

This data set represents the average monthly runoff (mm) from McCabe and Wolock's Runoff Model over the period of record, 1951-2000 compiled for two spatial components of the NHDPlus version 2.1...

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Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: PRISM 30 Year (1961-1990) Annual Average Number of Days of Measurable Precipitation

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:34 AM

This tabular data set represents 30 year annual average (1961-1990) number of days of measurable precipitation compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2)...

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xml

Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: STATSGO Soil Characteristics, Soil Salinity

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:33 AM

This tabular data set represents the STATSGO soil layer attribute, salinity, compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States;...

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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)

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:35 AM

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...

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xml

Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: 30 Year (1971 - 2000) Mean Annual Precipitation

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:33 AM

This tabular data set represents 30 year (1971 - 2000) mean annual precipitation in millimeters compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the...

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xml

Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Percent of Irrigated Agriculture, 2002 MIrAD data

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:33 AM

This tabular data set represents percent of irrigated agriculture, based on 2002 MODIS Irrigated Agricultural Data (MIrAD) data compiled for two spatial components of the NHDPlus version 2 data...

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xml

Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Percent of Irrigated Agriculture, 2007 MIrAD data

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:34 AM

This tabular data set represents percent of irrigated agriculture, based on 2007 MODIS Irrigated Agricultural Data (MIrAD) data compiled for two spatial components of the NHDPlus version 2 data...

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xml

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

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:33 AM

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...

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xml

Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Crop Land Data Layer 2011

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:23 AM

This tabular data set represents the percent of land cover classes from the 2011 Crop land Data Layer compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the...

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Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: NAWQA Wall-to-Wall Anthropogenic Land Use Trends (NWALT)

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 06:31 AM

This tabular data set contains information on historic anthropogenic land use trends, compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous...

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xml

Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: PRISM 30 year (1971-2000) Monthly Average Temperature (degrees Celsius)

Organization: Department of the Interior
Updated: 20230802 | Harvested: July 18, 2025 at 08:33 AM

These tabular data sets represent mean 30 year (1971-2000) monthly temperature (degrees Celsius) data from 800 meter resolution PRISM for two spatial components of the NHDPlus version 2.1 data...

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