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: National Land Cover Database 2019 Versions for the Years 2001, 2004, 2006, 2008, 2011, 2013, 2016, and 2019

This tabular data set represents the percent of land cover classes from the 2019 edition of the National Land Cover databases for the years 2001, 2004, 2006, 2008, 2011, 2013, 2016 and 2019 compiled for two spatial components of the NHDPlus version 2.1 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. These databases can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data is the "National Land Cover Database (NLCD) 2019 Products (ver. 2.0, June 2021)" databases for the years 2001, 2004, 2006, 2008, 2011, 2013, 2016, and 2019 produced by the United States Geological...

Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... NLCD2001, NLCD2004, NLCD2006, NLCD2008, NLCD2011, NLCD2013, NLCD2016, NLCD2019, National Land Cover Data set, SPARROW, inlandWaters, land cover, land use, Fewer tags

Attributes for NHDPlus Version 2.1 Reach Catchments and Modified-Routing Upstream Watersheds for the Conterminous United States: Monthly Average Temperature (Celsius) from 1945 - 2015

This tabular data set represents monthly average temperature values (Celsius) described in Wolock and McCabe (2018), compiled for the NHDPlus version 2 data suite (NHDPlusV2) for the conterminous United States. Linkage of the temperature data with NHDPlusV2 is achieved through the common unique identifier COMID. The temperature values are estimated both for: 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. The reach catchment information characterizes data at the local scale, whereas the catchments accumulated through the river network characterize cumulative upstream conditions. The network-accumulated values are derived using two methods: 1) divergence routing...

Tags: Catchment, Conterminous United States, Inlandwaters, NAWQA, NHDPlus, All tags... SPARROW, average monthly temperature, water balance model, Fewer tags

Attributes for NHDPlus Version 2.1 Flowlines for the Conterminous United States: Percent of Agriculture Land Subject to Select National Resource Inventory Conservation Practices, 2000-2012

This metadata record describes 24 tabular data sets that estimate the percent of agricultural land that may be subject to select conservation practices for each year during the period 2000-2012 compiled for two spatial components of the NHDPlus version 2.1 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. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through the river network characterizes cumulative upstream conditions. Network-accumulated values are...

Tags: Alley Cropping, Bedding, Conservation practice, Conterminous United States, Contour Buffer Strips, All tags... Contour Farming, Contour Orchard/Other Fruit Area, Cross Wind Trap Strips, Field Border, Filter Strip, Grassed Waterway, Hedgerow Planting, Herbaceous Wind Barriers, Hillside Ditch, NAWQA, NRI, Riparian Forest Buffer, Stripcroppings, Surface Drainage, Field Ditch, Terrace, Tree/Shrub Establishment, Water and Sediment Control Basin, Windbreak/Shelterbelt Establishment, 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

Attributes for NHDPlus Version 2.1 Flowlines for the Conterminous United States: Wet, Dry, and Total Deposition of Select Constituents from Community Multiscale Air Quality modeling system (CMAQ) for 2002 - 2012

This metadata record describes 19 annual Congestion Mitigation and Air Quality Improvement (CMAQ) Program variables ( kilograms per hectare) for each year between 2002 - 2012 ( Zhang and others, 2012, Schwede and others, 2014) compiled for two spatial components of the NHDPlus version 2.1 data suite hereto referred to as (NHDV2) 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 NHDPlusv2 data suite by the unique identifier COMID. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through the river network characterizes cumulative upstream...

Tags: CMAQ, Conterminous United States, NAWQA, Total Deposition of Nitrogen (Oxidized + Reduced), Total Oxidized Nitrogen, All tags... Total Reduced Nitrogen, Total Sulfur, Wet Deposition of Oxidized Nitrogen, Wet Deposition of Reduced Nitrogen, Wet Deposition of Total Sulfur, dry deposition, wet deposition, Fewer tags

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

This tabular data set represents the soil pH as processed from STATSGO2 database 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 source data was produced by the United States Geological Survey (Wieczorek, 2019). Soil pH units are approximately the negative of the base 10 logarithm of the molar concentration, measured in units of moles per liter, of hydrogen ions. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. Reach catchment information characterizes data at the local scale. Reach catchments...

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, STATSGO, Souris-Red-Rainy, South Atlantic-Gulf and Tennessee, Tennessee, Texas Gulf, Upper Mississippi, pH, soil, 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 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: STATSGO Soil Characteristics, Layer Attributes

This tabular data set represents the STATSGO Soil Layer Attributes 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 source data is found in the LAYER table from the "STATSGO soil characteristics for the conterminous United States" produced by the United States Geological Survey (Wolock, 1997). The variables included are water-table depth, soil erodibility (k-fact), soil erodibility for the uppermost soil horizon (k-factup), permeability, average water capacity, bulk density, percent organic material, rainfall and runoff factor ("R factor"...

Types: Citation; Tags: Catchment, Conterminous United States, Inlandwaters, K factor, K factor upper horizon, All tags... NAWQA, NHDPlus, Number 10 sieve, Number 200 sieve, Number 4 sieve, R factor, STATSGO, average water capacity, bulk density, organic material, permeability, rock depth, soil, water table depth, 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 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: PRISM Monthly Average Precipitation (millimeters), 2016-2017

These tabular data sets represent mean monthly precipitation (millimeters) data from 800-meter PRISM data for the years 2016 and 2017 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 mean monthly precipitation (Celsius) from 800-meter PRISM data was produced by the PRISM Group at Oregon State University. Units are degrees Celsius. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream...

Tags: 30 year (1971 - 2000) mean annual maximum precipitation, Catchment, Conterminous United States, Inlandwaters, Monthly average precipitation, All tags... NAWQA, NHDPlus, PRISM, SPARROW, Fewer tags