Found 203 datasets matching "Watershed Boundaries".
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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...
Search relevance: 147.33 | Views last month: 0 -
The National Water Quality Network (NWQN) for Rivers and Streams includes 113 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program...
Search relevance: 121.54 | Views last month: 7 -
This metadata report documents a shapefile of watershed boundaries for 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake Bay non-tidal network (NTN).
Search relevance: 116.57 | Views last month: 3 -
Stormwater Action Monitoring (SAM) is a collaborative monitoring program between western Washington municipal stormwater permittees, state and federal agencies. SAM’s role is to use the results...
Search relevance: 110.67 | Views last month: 0 -
In 2015, the second of several Regional Stream Quality Assessments (RSQA) was done in the southeastern United States. The Southeast Stream Quality Assessment (SESQA) was a study by the U.S....
Search relevance: 104.94 | Views last month: 0 -
This watershed boundary consists of modeled lines and edited lines based on site plans and field investigations.
Search relevance: 104.28 | Views last month: 0 -
In 2013, the first of several Regional Stream Quality Assessments (RSQA) was done in the Midwest United States. The Midwest Stream Quality Assessment (MSQA) was a collaborative study by the U.S....
Search relevance: 103.93 | Views last month: 0 -
In 2013, the Regional Stream Quality Assessment (RSQA) study was started as part of the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project. One of the objectives of...
Search relevance: 99.67 | Views last month: 0 -
We developed this spatial database of historic and current floodplains to analyze trends in vegetation conditions, identify areas more at risk of degradation, and assess the relationship between...
Search relevance: 90.01 | Views last month: 0 -
This is a Child Item for the Parent data release, Mapping Riparian Vegetation Response to Climate Change on the San Carlos Apache Reservation and Upper Gila River Watershed to Inform Restoration...
Search relevance: 83.02 | Views last month: 0 -
This dataset is the digital hydrologic unit boundary layer for the 8-digit subwatershed boundaries for the conterminous United States. This dataset is intended to be used with the following two...
Search relevance: 78.18 | Views last month: 4 -
The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal...
Search relevance: 73.45 | Views last month: 139 -
Population growth in New Hampshire’s coastal communities is straining municipal stormwater and wastewater infrastructure and placing water quality and public health at risk. At the same time,...
Search relevance: 69.53 | Views last month: 0 -
** Dataset containing HUC12 watershed boundaries that are within or intersect the boundary of a standard park AOA. ** The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection...
Search relevance: 69.51 | Views last month: 0 -
Current statewide map of the geographic territories of Environmental Enforcement Officers. Part of a dataset that contains administrative boundaries for Vermont's Agency of Natural Resources. The...
Search relevance: 63.15 | Views last month: 0 -
This data set is an ArcGIS shapefile depicting land segments in the Chesapeake Bay Watershed and adjacent states of New York, Pennsylvania, Maryland, West Virginia, Delaware, Virginia, North...
Search relevance: 61.77 | Views last month: 0 -
This data set provides estimates of watershed deforestation, as a proportion of the total area of watersheds, in Rondonia, Brazil for 1999. Deforestation maps were determined for the main...
Search relevance: 47.55 | Views last month: 0 -
Lidar Digital Elevation Models (DEMs) at 2-meter resolution have been used to derive watershed boundaries for the State of Maine. Geographic Information Systems (GIS) software was used to...
Search relevance: 46.98 | Views last month: 2 -
The dataset contains the boundaries of the MS4 general permit, which are defined as the intersection of US Census urbanized areas and the watershed boundaries of the stormwater-impaired waters...
Search relevance: 45.14 | Views last month: 0
