74 datasets found for ""Hydrologic Units""
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Federal
EnviroAtlas - Average Annual Precipitation 1981-2010 by HUC12 for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset provides the average annual precipitation by 12-digit Hydrologic Unit (HUC). The values were estimated from maps produced by the PRISM... -
Federal
EnviroAtlas - Domestic Water Demand by 12-Digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset includes domestic water demand attributes which provide insight into the amount of water currently used for indoor and outdoor residential... -
Federal
TRI National Analysis: Mapping Data for the Toxics Release Inventory Releases at Various Geographic Levels
U.S. Environmental Protection Agency —
These data provide mapping, display, and analysis capabilities for the TRI National Analysis data at the following geographic levels: state, county, large aquatic... -
Federal
EnviroAtlas - Migratory Bird Hunting Recreation Demand by 12-Digit HUC in the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset includes the total number of recreational days per year demanded by people ages 18 and over for migratory bird hunting by location in the... -
Federal
EnviroAtlas - Big Game Hunting Recreation Demand by 12-Digit HUC in the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset includes the total number of recreational days per year demanded by people ages 18 and over for big game hunting by location in the... -
Federal
EnviroAtlas - Fruit and vegetable crops by 12-digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset includes data on the area, yield, and number of fruit and vegetable crops grown per 12-digit Hydrologic Unit (HUC) in the conterminous USA.... -
Federal
EnviroAtlas - Cultivated biological nitrogen fixation in agricultural lands by 12-digit HUC in the Conterminous United States, 2006
U.S. Environmental Protection Agency —
This EnviroAtlas dataset contains data on the mean cultivated biological nitrogen fixation (C-BNF) in cultivated crop and hay/pasture lands per 12-digit Hydrologic... -
Federal
EnviroAtlas - Above Ground Live Tree Biomass Carbon Storage by 12-Digit HUC for the Conterminous United States - Forested
U.S. Environmental Protection Agency —
This EnviroAtlas dataset includes the sum of aboveground live dry biomass estimate by 12-digit Hydrologic Unit (HUC) in total metric tons (megagrams) from the 2000... -
Federal
EnviroAtlas - NatureServe Analysis of Imperiled or Federally Listed Species by HUC-12 for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset includes analysis by NatureServe of species that are Imperiled (G1/G2) or Listed under the U.S. Endangered Species Act (ESA) by 12-digit... -
Federal
EnviroAtlas - Industrial Water Demand (2010) by 12-Digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset includes industrial water demand attributes which provide insight into the amount of water currently used for manufacturing and production of... -
Federal
EnviroAtlas – Potential Wetland Area for the Conterminous United States
U.S. Environmental Protection Agency —
The Potential Wetland Area (PWA) layer shows areas where conditions may be suitable for wetland habitat at a 10-m resolution. Since the 1600's, an estimated 53% of... -
Federal
EnviroAtlas - 2019 Land Cover Proportions by 12-digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset represents the percentage of land area that is classified as natural, forest, wetland, agricultural, and developed land cover using the 2019... -
Federal
EnviroAtlas - Number of Water Markets per HUC8 Watershed, U.S., 2015, Forest Trends' Ecosystem Marketplace
U.S. Environmental Protection Agency —
This EnviroAtlas dataset contains polygons depicting the number of watershed-level market-based programs, referred to herein as markets, in operation per 8-digit HUC... -
Federal
EnviroAtlas - Historic Places by 12-digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset portrays the total number of historic places located within each 12-digit Hydrologic Unit (HUC). The historic places data were compiled from... -
Federal
EnviroAtlas - Agricultural Water Demand by 12-Digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
The national agricultural water demand metric provides insight into the amount of water used for agricultural irrigation in the contiguous United States. The... -
Federal
EnviroAtlas - 2019 Percent Impervious Cover by 12-digit HUC for the Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas dataset represents the percentage of land area within each 12-digit hydrologic unit code (HUC) in the conterminous United State that is impervious to... -
Federal
Dataset for modeling spatial and temporal variation in natural background specific conductivity
U.S. Environmental Protection Agency —
This file contains the data set used to develop a random forest model predict background specific conductivity for stream segments in the contiguous United States.... -
Federal
Conservation Prioritization Nov2023
U.S. Environmental Protection Agency —
This file contains data associated with the paper "Our national nutrient reduction needs: Applying a conservation prioritization framework to US agricultural lands"... -
Federal
EnviroAtlas - 2010-2012 Riparian Land Cover Proportions by 12-digit HUC for Puerto Rico and the US Virgin Islands
U.S. Environmental Protection Agency —
This EnviroAtlas dataset represents the percentage of land area that is classified as forest (excluding wetlands), forest including woody wetlands, and natural land... -
Federal
Office of Water Linked Data
U.S. Environmental Protection Agency —
The Office of Water Linked Data (OWLD) dataset stores EPA Water program information indexed to several National Hydrography Dataset frameworks. Indexing may be...
74 datasets found for ""Hydrologic Units""