Data
The data page contains USGS information for key national data sets and also more specific information for the Chesapeake Bay watershed. Links to selected state information are also included.
USGS Core Spatial Data Resources
- The National Map
- The Bay Watershed Satellite Map
- Chesapeake Bay Land Cover Data Series (FTP)
- National Geospatial Data Clearinghouse search for data
- USGS Geographic Data—The National Map - DLG, LULC, and more.
- USGS GEOData—The National Map Elevation (NED), Hydrography (NHD), and more.
- Spatial Data Sets Available on the WRD NSDI Node
- USGS 8 Digit Hydrologic Units
- USGS Hydrogeomorphic Regions
- National Watershed Boundary Data set
Land Use and Climate Change
- MRLC NLCD National Land Cover Data, 2001
- Land Cover Mapping of the Chesapeake Bay Watershed for 1990 and 2000
- EPA Chesapeake Bay Program Resource Lands Assessment
- ChesapeakeView
Water Quality and Quantity
- National Water Information
- National Water-Quality Information
- National Water Quality Portal (NWIS and STORET)
- Obtaining USGS Water-Resources Data
- NAWQA Modeling and Software
- USGS Science In Your Watershed
- EPA Chesapeake Bay Program Watershed Profiles
- Nutrients and Sediment
- Water Quality Loads and Trends Information
- Relating Nutrient Sources to Water Quality (SPARROW Applications)
- National SPARROW Mapper
- Distribution of Holocene Sediment in Chesapeake Bay
- Contaminants
- Contaminant Exposure and Effects - Terrestrial Vertebrates (CEE-TV) Database
- Streamflow and Groundwater Quantity
Fish, Wildlife, and Habitats
- Contaminant Exposure and Effects - Terrestrial Vertebrates (CEE-TV) Database
Selected State Spatial Data Resources
- Delaware
- District of Columbia
- Maryland
- MSGIC - Maryland State Geographic Information Committee
- Maryland Department of Natural Resources
- Maryland iMap
- MD Dept. of Natural Resources - Maryland's Green Infrastructure
- New York
- Pennsylvania
- Virginia
- Dept. of Foresty GIS
- VA Dept. of Conservation and Recreation Natural Heritage
- Game and Inland Fisheries Geographic Information Systems
- West Virginia
- West Virginia Office of GIS Coordination — Data Clearinghouse
- Multi-State Cooperatives
Web Services
Web Map Services (WMS) are a way of sharing and accessing geospatial data served by Web mapping applications like USGS's The National Map. Web Map services can be used in your own Web mapping application or added to desktop applications like ESRI's ArcGIS.
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