Found 19 datasets matching "D.C.-Virginia-Maryland".
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These data were automated to provide an accurate high-resolution historical shoreline of D.C.-Virginia-Maryland suitable as a geographic information system (GIS) data layer. These data are...
Search relevance: 224.12 | Views last month: 0 -
From May 27 to June 21, 2024, a Virginia Tech team of 5 sampled the fish community in 30 streams spanning a gradient of the developed landscape, including Potomac River, Rappahannock River, and...
Search relevance: 97.70 | Views last month: 1 -
This data release presents chemical results from investigations of surface-water quality in the Potomac River watershed (encompassing Washington, D.C. and parts of West Virginia, Virginia,...
Search relevance: 68.62 | Views last month: 0 -
In 2011, the District of Columbia government commissioned a project to survey the Washington D.C. historic boundary stones set in 1791 and 1792 that define the Maryland and (then Virginia) border...
Search relevance: 64.86 | Views last month: 3 -
In 2011, the District of Columbia government commissioned a project to survey the Washington D.C. historic boundary stones set in 1791 and 1792 that define the Maryland and (then Virginia) border...
Search relevance: 61.06 | Views last month: 2 -
Global trends in wetland degradation and loss have created an urgency to monitor wetland extent, as well as track the distribution and causes of wetland loss. Satellite imagery can be used to...
Search relevance: 52.09 | Views last month: 0 -
This dataset contains values of the Palmer Hydrological Drought Index (PHDI) for annual and seasonal periods from 1985-2012. Values are derived from data based on National Climatic Data Center...
Search relevance: 48.53 | Views last month: 1 -
Treated effluent from wastewater treatment plants (WWTPs) contains contaminants not fully removed during the treatment process and that may pose environmental health risks when discharged to...
Search relevance: 48.12 | Views last month: 1 -
Physiography for the Mid-Atlantic Coastal Plain was constructed by standardizing and extrapolating previous physiographic interpretations for areas within and adjacent to the region. For more...
Search relevance: 47.87 | Views last month: 0 -
Subcropping geology for the Mid-Atlantic Coastal Plain was compiled and interpreted from available published sources. Formation contacts were interpolated across unmapped areas. Inconsistencies...
Search relevance: 46.72 | Views last month: 0 -
Surficial geology for the Mid-Atlantic Coastal Plain was compiled and interpreted from available published and unpublished sources. Formation contacts were interpolated across unmapped areas and...
Search relevance: 46.61 | Views last month: 2 -
The hydrogeologic framework was developed from a combination of the physiography and the predominant texture of surficial geologic units in the Mid-Atlantic Coastal Plain. It describes the...
Search relevance: 45.27 | Views last month: 1 -
Each year from 2021 to 2024, teams from the U.S. Geological Survey and the Virginia Polytechnic Institute and State University (Virginia Tech) studied 30 streams with a targeted gradient of land...
Search relevance: 45.11 | Views last month: 0 -
This dataset represents results from this study attributed to the NHDPlus stream reach segments. Human impacts occurring throughout the Northeast United StatesDOI Northeast Climate Science Center,...
Search relevance: 42.63 | Views last month: 0 -
This dataset represents results from this study attributed to the Hydrologic Unit Code (HUC) 12 watershed boundaries. Human impacts occurring throughout the Northeast United StatesDOI Northeast...
Search relevance: 42.63 | Views last month: 0 -
This dataset represents results from this study attributed to the NHDPlus catchments. Human impacts occurring throughout the Northeast United StatesDOI Northeast Climate Science Center, including...
Search relevance: 42.46 | Views last month: 0 -
Human impacts occurring throughout the Northeast United StatesDOI Northeast Climate Science Center, including urbanization, agriculture, and dams, have multiple effects on the region’s streams...
Search relevance: 42.46 | Views last month: 0 -
A digital map of the thickness of the surficial unconfined aquifer, including from the land surface and unsaturated zone to the bottom of sediments of geologic units identified as part of the...
Search relevance: 38.17 | Views last month: 3 -
A 1/3 arc-second Mean Lower Low Water bathymetric DEM of NOS hydrographic survey data in the Chesapeake Bay Estuary.
Search relevance: 37.65 | Views last month: 0
