Filters: Tags: Maryland (X) > partyWithName: U.S. Geological Survey (X)

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Percent impervious surface for selected Chesapeake Bay watersheds 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. Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, impervious surfaces, surface water quality, Fewer tags Supporting Data QC Field Spikes SW NAWQA 2012-2015 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.... Tags: Alabama, Alaska, Arizona, California, Colorado, All tags... Connecticut, District of Columbia, Georgia, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Minnesota, Mississippi, Montana, Nebraska, Nevada, New Jersey, New York, North Carolina, North Dakota, Ohio, Oregon, River, South Carolina, Stream, Surface water, Texas, United States, Utah, Virginia, Washington, field spike, fungicide, herbicide, insecticide, laboratory methods, pesticide, pesticide degradate, quality control, water quality, Fewer tags USGS 1:1,000,000-Scale Federal Lands of the United States 201412 FileGDB 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... Army, BIA, BLM, BOR, Bureau of Indian Affairs, Bureau of Land Management, Bureau of Reclamation, California, Coast Guard, Colorado, Connecticut, Coordinated Area, DHS, DOC, DOD, DOE, DOJ, DOL, DOT, Delaware, Department of Commerce, Department of Defense, Department of Energy, Department of Health and Human Services, Department of Homeland Security, Department of Justice, Department of Labor, Department of Transportation, Department of Veterans Affairs, District of Columbia, Downloadable Data, Downloadable Data, Experimental Range, Experimental Station, FS, FWS, Federal Center, Federal Correctional Complex, Federal Penitentiary, Federal lands, Field Site, FileGDB 10.1, FileGDB 10.1, Fish and Wildlife Service, Flight Center, Florida, Forest Service, GSA, General Services Administration, Georgia, HHS, Hawaii, Idaho, Illinois, Indian Reservation, Indiana, Iowa, Job Corps Center, Kansas, Kentucky, Law Enforcement Training Center, Louisiana, MWAA, MWAA, Maine, Marine Corps, Maryland, Massachusetts, Metropolitan Washington Airports Authority, Michigan, Minnesota, Mississippi, Missouri, Montana, NASA, NIH, NPS, National, National, National Aeronautics and Space Administration, National Battlefield, National Cemetery, National Conservation Area, National Fish Hatchery, National Forest, National Game Preserve, National Grassland, National Guard, National Historic Park, National Historic Reserve, National Historic Site, National Institutes of Health, National Laboratory, National Lakeshore, National Memorial, National Military Park, National Monument, National Natural Landmark, National Park, National Park Service, National Parkway, National Preserve, National Recreation Area, National Reserve, National Scenic Area, National Seashore, National Wild and Scenic River, National Wilderness Area, National Wildlife Refuge, Naval Petroleum Reserve, Navy, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Public Domain Land, Puerto Rico, Research Facility, Research Natural Area, Research Station, Rhode Island, Scenic Area, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets - Boundaries, South Carolina, South Dakota, Space Center, TVA, Tennessee, Tennessee Valley Authority, Test Site, Texas, U.S. Coast Guard, U.S. Department of Agriculture, U.S. Fish and Wildlife Service, U.S. Forest Service, U.S. Virgin Islands, US, USA, USDA, United States, Utah, VA, Vermont, Virgin Islands, Virginia, Washington, Waterfowl Production Area, West Virginia, Wild Horse Range, Wild and Scenic River, Wilderness Area, Wildlife Management Area, Wisconsin, Wyoming, boundaries, intelligenceMilitary, society, Fewer tags South Dakota: NFHAP 2010 HCI Scores and Disturbances This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the state of South Dakota. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the state boundary of South Dakota. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) representative of... Categories: Data; Types: ArcGIS REST Map Service, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anthropogenic factors, Aquatic habitats, Atlantic Coast FHP, Catchment areas, Connecticut, All tags... DC, Delaware, Environmental conditions, Florida, Georgia, Habitat suitability, Inland water environments, Landscape ecology, Linked to the National Hydrography Dataset Plus (1:100,000), Maine, Maryland, Massachusetts, National Assessment Data, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, River basins, Rivers, South Carolina, Spatial Data, Stream Characterization, Streams, Vermont, Virginia, Water quality measurement, West Virginia, Fewer tags Georgia: NFHAP 2010 HCI Scores and Disturbances This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the state of Georgia. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the state boundary of Georgia. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) representative of conditions... Categories: Data; Types: ArcGIS REST Map Service, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anthropogenic factors, Aquatic habitats, Atlantic Coast FHP, Catchment areas, Connecticut, All tags... DC, Delaware, Environmental conditions, Florida, Georgia, Habitat suitability, Inland water environments, Landscape ecology, Linked to the National Hydrography Dataset Plus (1:100,000), Maine, Maryland, Massachusetts, National Assessment Data, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, River basins, Rivers, South Carolina, Spatial Data, Stream Characterization, Streams, Vermont, Virginia, Water quality measurement, West Virginia, Fewer tags Louisiana: NFHAP 2010 HCI Scores and Disturbances This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the state of Louisiana. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the state boundary of Louisiana. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) representative of conditions... Categories: Data; Types: ArcGIS REST Map Service, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anthropogenic factors, Aquatic habitats, Atlantic Coast FHP, Catchment areas, Connecticut, All tags... DC, Delaware, Environmental conditions, Florida, Georgia, Habitat suitability, Inland water environments, Landscape ecology, Linked to the National Hydrography Dataset Plus (1:100,000), Maine, Maryland, Massachusetts, National Assessment Data, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, River basins, Rivers, South Carolina, Spatial Data, Stream Characterization, Streams, Vermont, Virginia, Water quality measurement, West Virginia, Fewer tags National Fish Habitat Action Plan (NFHAP) 2010 HCI Scores and Human Disturbance Data (linked to NHDPLUSV1) for Desert Fish Habitat Partnership This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the Desert Fish Habitat Partnership. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the boundary of the Desert Fish Habitat Partnership. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled;... Categories: Data; Types: ArcGIS REST Map Service, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anthropogenic factors, Aquatic habitats, Atlantic Coast FHP, Catchment areas, Connecticut, All tags... DC, Delaware, Environmental conditions, Florida, Georgia, Habitat suitability, Inland water environments, Landscape ecology, Linked to the National Hydrography Dataset Plus (1:100,000), Maine, Maryland, Massachusetts, National Assessment Data, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, River basins, Rivers, South Carolina, Spatial Data, Stream Characterization, Streams, Vermont, Virginia, Water quality measurement, West Virginia, Fewer tags The effects of North American fungi and bacteria on Phragmites australis leaves 2017-2019, with comparisons to the global Phragmites microbiome The data document the results of several microbe bioassays performed by the USGS on Phragmites australis plants, including those performed on mature leaves, seedlings, and dead leaf tissues exploration of the literature to find accounts of microbes associated with Phragmites worldwide. For the bioassays, we prepared 162 pure cultures isolated from Phragmites plants in North America along the east coast, Florida, the Gulf of Mexico, and the Great Lakes area, 125 of which were from a previous study, and 38 represent new collections. The DNA sequences used to identify the 37 new collections are included. Microbes were isolated from plants collected from 2015-2018. We performed assays using both North American plant... Categories: Data; Tags: Africa, Asia, China, DNA sequencing, Ecology, All tags... Europe, Florida, France, Genetics, Germany, Hong Kong, Indiana, Italy, Japan, Louisiana, Maine, Maryland, Michigan, New Jersey, North America, North Carolina, Ohio, Philippines, Poland, Portugal, Rhode Island, Russia, Spain, USGS Science Data Catalog (SDC), United Kingdom, Virginia, bacteria, biota, flowering plants, fungi, pathology, plant and animal testing, systematics and taxonomy, Fewer tags USGS Topo Map Vector Data (Vector) 11900 Delta PA (published 20231221) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Combined Vector, Combined Vector, Combined Vector, All tags... Downloadable Data, GeoPackage, Harford, Lancaster, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, PA, Pennsylvania, Public Land Survey System, Topo Map Vector Data, US, United States, York, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 35747 Pocomoke City MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Accomack, Combined Vector, Combined Vector, All tags... Combined Vector, Downloadable Data, GeoPackage, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Somerset, Topo Map Vector Data, US, United States, VA, Virginia, Worcester, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 86 Accident MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Combined Vector, Combined Vector, Combined Vector, All tags... Downloadable Data, Garrett, GeoPackage, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, PA, Pennsylvania, Public Land Survey System, Somerset, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 40368 Seaford West DE (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Caroline, Combined Vector, Combined Vector, All tags... Combined Vector, DE, Delaware, Dorchester, Downloadable Data, GeoPackage, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Sussex, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 35787 Point Lookout MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Combined Vector, Combined Vector, Combined Vector, All tags... Downloadable Data, GeoPackage, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, St. Mary's, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 49183 Williamsport MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Berkeley, Combined Vector, Combined Vector, All tags... Combined Vector, Downloadable Data, GeoPackage, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Topo Map Vector Data, US, United States, WV, Washington, West Virginia, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 36781 Queenstown MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Combined Vector, Combined Vector, Combined Vector, All tags... Downloadable Data, GeoPackage, Kent, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Queen Anne's, Talbot, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 18755 Gunpowder Neck MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Baltimore, Combined Vector, Combined Vector, All tags... Combined Vector, Downloadable Data, GeoPackage, Harford, Kent, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 2293 Baltimore East MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Baltimore, Combined Vector, Combined Vector, All tags... Combined Vector, Downloadable Data, GeoPackage, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 43967 Swan Point MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Anne Arundel, Baltimore, Combined Vector, All tags... Combined Vector, Combined Vector, Downloadable Data, GeoPackage, Kent, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 25088 Laurel MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Anne Arundel, Combined Vector, Combined Vector, All tags... Combined Vector, Downloadable Data, GeoPackage, Howard, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Prince George's, Public Land Survey System, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags USGS Topo Map Vector Data (Vector) 32354 North East MD (published 20231222) GeoPackage Layers of geospatial data include contours, boundaries, land cover, hydrography, roads, transportation, geographic names, structures, and other selected map features. Tags: 7.5 x 7.5 minute, 7_5_Min, Cecil, Combined Vector, Combined Vector, All tags... Combined Vector, Downloadable Data, GeoPackage, MD, Maryland, Open Geospatial Consortium GeoPackage 1.2, Public Land Survey System, Topo Map Vector Data, US, United States, boundary, contours, geographic names, hydrography, structures, transportation, woodland, Fewer tags 1 2 3 4 5 ... »