247 datasets found
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Federal
U.S. Geological Survey calculated percentage of time sediment is mobile for May 2010 to May 2011 at select points in the South Atlantic Bight (SAB_mobile_perc, point shapefile, Geographic, WGS84)
Department of the Interior —
The U.S. Geological Survey has been characterizing the regional variation in shear stress on the sea floor and sediment mobility through statistical descriptors. The... -
Federal
Percent of land in agricultural production and developed for selected Chesapeake Bay watersheds
Department of the Interior —
Land-use estimates of agricultural and developed land for the period 1985-2012 for selected Chesapeake Bay watersheds. -
Federal
Annual Winter-Spring Nitrogen Loading for the Susquehanna and Potomac Rivers, 1985 to 2016
Department of the Interior —
Stations Analyzed are 01578310 - SUSQUEHANNA RIVER AT CONOWINGO, MD and 01646580 - POTOMAC RIVER AT CHAIN BRIDGE NEAR WASHINGTON, DC Spring nitrogen loads as measured... -
Federal
Percent impervious surface for selected Chesapeake Bay watersheds
Department of the Interior —
This dataset contains watershed means of estimated percent impervious surfaces for three time periods: 1992, 2002, and 2012. Estimates are based on coefficients... -
Federal
Digital Elevation Model (DEM) of Northern Atlantic Coastal Plain topography and bathymetry with a horizontal resolution of 100 feet and vertical resolution of 1 integer foot
Department of the Interior —
This digital elevation model (DEM) for the Northern Atlantic Coastal Plain (NACP) from Long Island New York to northeastern North Carolina represents the elevation of... -
Federal
Delmarva Peninsula Stream Health and Habitat Assessments in Maryland and Delaware (2022) (ver. 2.0, April 2025)
Department of the Interior —
U. S. Geological Survey (USGS) scientists completed a data collection campaign from the 25th of April to the 10th of June in 2022, using various methods to record... -
Federal
Forshay et al. 2022 Biogeochemistry https://doi.org/10.23719/1520759
U.S. Environmental Protection Agency —
Soil properties, processing rates, and water chemistry data. This dataset is associated with the following publication: Forshay, K., J. Weitzman, J. Wilhelm, J.... -
Federal
Organic contaminants, including hormones, pesticides, pharmaceuticals and other endocrine disrupting compounds, and estrogenicity data in select surface water samples as well as organic contaminants in bed sediment samples collected in Chesapeake Bay watershed in parts of Maryland, Pennsylvania, and West Virginia, 2012-2018 (ver. 2.0, August 2020)
Department of the Interior —
These data represent surface water and bed sediment samples analyzed for a variety of organic compounds. The samples were collected in streams and rivers in the... -
Federal
Simulated orthophosphate concentrations as a function of season and flow for 53 monitoring stations in the Chesapeake Bay watershed for the years 2006 and 2014
Department of the Interior —
This data release contains simulated orthophosphate concentrations (milligrams per liter) as a function of year, season, and flow for 53 monitoring stations in the... -
State
MD iMAP: Maryland Recreational Uses - Mountain Allterrain Biking
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. These baseline recreational use data will inform planning efforts being... -
Federal
Chesapeake Bay Region Virginia River Bluff and Wetland Extent Mapping - 2018 Field Survey Data
Department of the Interior —
U.S. Geological Survey (USGS) and Virginia Institute of Marine Science (VIMS) scientists conducted field data collection efforts during the week of April 8th - 14th,... -
State
MD iMAP: Maryland Recreational Uses - Charter Fishing Small Vessel
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. As a member of the Mid-Atlantic Regional Council on the Ocean (MARCO) -... -
Federal
U.S. Geological Survey calculated half interpercentile range (half of the difference between the 16th and 84th percentiles) of wave-current bottom shear stress in the South Atlantic Bight from May 2010 to May 2011 (SAB_hIPR.shp, polygon shapefile, Geographic, WGS84)
Department of the Interior —
The U.S. Geological Survey has been characterizing the regional variation in shear stress on the sea floor and sediment mobility through statistical descriptors. The... -
State
MD iMAP: Maryland Recreational Uses - Guided Hunting
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. These baseline recreational use data will inform planning efforts being... -
State
MD iMAP: Maryland Recreational Uses - Sailing
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland - through its Coastal Zone Management (CZM) Program - is... -
Federal
Nitrogen flux estimates in support of Chesapeake Bay Hypoxia and Anoxia forecasts, 1985-2021
Department of the Interior —
Data release includes the U.S. Geological Survey (USGS) estimate of spring nitrogen fluxes summed from nine tributaries to the Chesapeake Bay from 1985 to 2021. Data... -
Federal
SHIP NAVIGATION: ANSI Text File of the Navigation and Bathymetry Recorded by the Ship's Differential Global Positioning System (DGPS) in the Potomac River/Chesapeake Bay from Sept. 6 to Sept. 8, 2006 - USGS Cruise 06018
Department of the Interior —
In order to test hypotheses about groundwater flow under and into Chesapeake Bay, geophysical surveys were conducted by U.S. Geological Survey (USGS) scientists on... -
Federal
Raw and Modified Raw Continuous Resistivity Profile Data Collected in the Potomac River/Chesapeake Bay on Sept. 7, 2006
Department of the Interior —
In order to test hypotheses about groundwater flow under and into Chesapeake Bay, geophysical surveys were conducted by U.S. Geological Survey (USGS) scientists on... -
State
MD iMAP: Maryland Watersheds - Tributary Strategy Basins
State of Maryland —
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Maryland Tributary Teams-comprised of local citizens - farmers - business... -
Federal
Reservoir storage for selected Chesapeake Bay watersheds
Department of the Interior —
This dataset contains values of normal reservoir storage in units of acre-feet per km2, for three time periods: 1992, 2002, and 2012. Values are derived from a...
247 datasets found