Skip to main content
Advanced Search

Filters: Tags: District of Columbia (X) > partyWithName: U.S. Geological Survey (X)

117 results (117ms)   

Filters
Date Range
Extensions
Types
Contacts
Categories
Tag Types
Tag Schemes
View Results as: JSON ATOM CSV
thumbnail
The download for this dataset includes TNC’s full Northeastern Aquatic Habitat Classification System: stream size, stream temperature, stream gradient, stream geology, lakes and catchments. This dataset represents the results (9/30/2008) of the Northeastern Aquatic Habitat Classification System (NAHCS) GIS map for streams and rivers. This classification focused on mapping a stream habitat types across 13 northeastern states (ME, NH, VT, MA, CT, RI, NY, NJ, PA, MD, DC, DE, VA, WV). Stream and river centerlines were extracted from the USGS National Hydrography Dataset Plus (NH-Plus) 2006 1:100,000 data. These reaches were attributed and placed into classes representing their biopysical setting in terms of stream...
thumbnail
This map layer consists of federally owned or administered lands of the United States, Puerto Rico, and the U.S. Virgin Islands. For the most part, only areas of 320 acres or more are included; some smaller areas deemed to be important or significant are also included. There may be private inholdings within the boundaries of Federal lands in this map layer. Some established Federal lands which are larger than 320 acres are not included in this map layer, because their boundaries were not available from the owning or administering agency.
Tags: Air Force, Alabama, Alaska, Arizona, Arkansas, All tags...
thumbnail
Layered geospatial PDF 7.5 Minute Quadrangle Map. Layers of geospatial data include orthoimagery, roads, grids, geographic names, elevation contours, hydrography, and other selected map features. This map is derived from GIS (geospatial information system) data. It represents a repackaging of GIS data in traditional map form, not creation of new information. The geospatial data in this map are from selected National Map data holdings and other government sources.
thumbnail
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Accomack County, Adams County, Administrative watershed units, Administrative watershed units, Alamance County, All tags...
thumbnail
This dataset contains watershed means of estimated percent impervious surfaces for three time periods: 1992, 2002, and 2012. Estimates are based on coefficients derived from comparing land use of the 2012 NAWQA Wall-to-wall Anthropogenic Land-use Trends (NWALT) product to the 2011 National Land Cover Database (NLCD) imperviousness, then applying those coefficients to previous years (1974-2002) of the NWALT dataset.
thumbnail
Coastal communities are uniquely vulnerable to sea-level rise (SLR) and severe storms such as hurricanes. These events enhance the dispersion and concentration of natural and anthropogenic chemicals and pathogenic microorganisms that could adversely affect the health and resilience of coastal communities and ecosystems in coming years. The U.S. Geo­logical Survey has developed the Sediment-Bound Contaminant Resiliency and Response (SCoRR) strategy to define baseline and post-event sediment-bound environmental health (EH) stressors. These data document toxicity measured by reduction of the light emission of Aliivibrio (formerly Photobacterium) fischeri and the inhibition of polymerase chain reactions caused by environmental...
thumbnail
Field spikes were prepared at 207 stream and river sites as part of the U.S. Geological Survey (USGS) National Water Quality Assessment (NAWQA) project between December, 2012, and September, 2015. At the field site, a depth-and width-integrated environmental sample was collected, and one subsample of the environmental sample was spiked with a known amount of a spike mixture. Both the spiked subsample ("spike sample") and another subsample ("environmental sample") of the original water sample were analyzed for pesticides at the USGS National Water Quality Laboratory (NWQL) by direct injection liquid chromatography with tandem mass spectrometry (LC-MS/MS), and were used to calculate the spike recovery of each analyte....
thumbnail
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Alexandria County, Area of Complex Channels, Area to be submerged, All tags...
thumbnail
This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages maintained by the U.S. Geological Survey (USGS). It is an update to the original GAGES, which was published as a Data Paper on the journal Ecology's website (Falcone and others, 2010b) in 2010. The GAGES II dataset consists of gages which have had either 20+ complete years (not necessarily continuous) of discharge record since 1950, or are currently active, as of water year 2009, and whose watersheds lie within the United States, including Alaska, Hawaii, and Puerto Rico. Reference gages were identified based on indicators that they...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama, Alaska, All 50 states, Arizona, Arkansas, All tags...
thumbnail
This dataset represents the results (9/30/2008) of the Northeastern Aquatic Habitat Classification System (NAHCS) GIS map for streams and rivers. This classification focused on mapping a stream habitat types across 13 northeastern states (ME, NH, VT, MA, CT, RI, NY, NJ, PA, MD, DC, DE, VA, WV). Stream and river centerlines were extracted from the USGS National Hydrography Dataset Plus (NH-Plus) 2006 1:100,000 data. These reaches were attributed and placed into classes representing their biopysical setting in terms of stream size, gradient, and geology, and expected natural water temperature regime. Please see the attribute descriptions for more information on the variable thresholds and the summary taxonomy.
thumbnail
These vector contour lines are derived from the 3D Elevation Program using automated and semi-automated processes. They were created to support 1:24,000-scale CONUS and Hawaii, 1:25,000-scale Alaska, and 1:20,000-scale Puerto Rico / US Virgin Island topographic map products, but are also published in this GIS vector format. Contour intervals are assigned by 7.5-minute quadrangle, so this vector dataset is not visually seamless across quadrangle boundaries. The vector lines have elevation attributes (in feet above mean sea level on NAVD88), but this dataset does not carry line symbols or annotation.
Tags: 1 x 1 degree, 1 x 1 degree, Alexandria County, Arlington County, Caroline County, All tags...


map background search result map search result map GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow TNC Aquatic Habitat 7 Classes Northeastern Aquatic Habitat Classification System, Stream Gradient Percent impervious surface for selected Chesapeake Bay watersheds USGS Small-scale Dataset - 1:1,000,000-Scale Major Roads of the United States 201403 Shapefile Matrix inhibition PCR and Microtox® 81.9% screening assay analytical results for samples collected for the Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015 USGS Topo Map Vector Data (Vector) 507 Alexandria, Virginia 20190916 for 7.5 x 7.5 minute Shapefile USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02070010 (published 20201007) USGS NED 1/3 arc-second Contours for Washington W, Maryland 20191212 1 X 1 degree Shapefile NHD 20200615 for Virginia State or Territory Shapefile Model Version 2.2.1 USGS Land Cover - Woodland for District of Columbia 20180810 State or Territory FileGDB 10.1 USGS Land Cover - Woodland for District of Columbia 20180810 State or Territory Shapefile USGS National Structures Dataset (NSD) for District of Columbia 20201110 State or Territory FileGDB 10.1 USGS 1:1,000,000-Scale Federal Lands of the United States 201412 FileGDB USGS US Topo 7.5-minute map for Washington West, DC,MD,VA 2019 USGS US Topo 7.5-minute map for Anacostia, DC-MD 2011 USGS US Topo 7.5-minute map for Anacostia, DC-MD 2014 USGS US Topo 7.5-minute map for Washington East, DC-MD 2014 USGS US Topo 7.5-minute map for Alexandria, VA-DC-MD 2013 USGS Topo Map Vector Data (Vector) 507 Alexandria, Virginia 20190916 for 7.5 x 7.5 minute Shapefile USGS US Topo 7.5-minute map for Washington West, DC,MD,VA 2019 USGS US Topo 7.5-minute map for Anacostia, DC-MD 2011 USGS US Topo 7.5-minute map for Anacostia, DC-MD 2014 USGS US Topo 7.5-minute map for Washington East, DC-MD 2014 USGS US Topo 7.5-minute map for Alexandria, VA-DC-MD 2013 USGS Land Cover - Woodland for District of Columbia 20180810 State or Territory FileGDB 10.1 USGS Land Cover - Woodland for District of Columbia 20180810 State or Territory Shapefile USGS National Structures Dataset (NSD) for District of Columbia 20201110 State or Territory FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 02070010 (published 20201007) USGS NED 1/3 arc-second Contours for Washington W, Maryland 20191212 1 X 1 degree Shapefile Percent impervious surface for selected Chesapeake Bay watersheds NHD 20200615 for Virginia State or Territory Shapefile Model Version 2.2.1 Matrix inhibition PCR and Microtox® 81.9% screening assay analytical results for samples collected for the Sediment-Bound Contaminant Resiliency and Response Strategy pilot study, northeastern United States, 2015 TNC Aquatic Habitat 7 Classes Northeastern Aquatic Habitat Classification System, Stream Gradient USGS Small-scale Dataset - 1:1,000,000-Scale Major Roads of the United States 201403 Shapefile GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow USGS 1:1,000,000-Scale Federal Lands of the United States 201412 FileGDB