55 datasets found
-
Federal
Maps of water depth derived from satellite images of the Potomac River acquired in July and August of 2021 recent views
Department of the Interior —
Information on water depth in river channels is important for a number of applications in water resource management but can be difficult to obtain via conventional... -
Federal
Susquehanna River Basin freshwater mussel surveys: 2008-2015 recent views
Department of the Interior —
Data are included for two types of field surveys conducted for freshwater mussels throughout the Susquehanna River Basin (and one site in the Potomac River Basin) in... -
Federal
Annual estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014 recent views
Department of the Interior —
This metadata record documents a comma-delimited table representing scenario output from the Chesapeake Bay Program Phase 5.3.2 Watershed Model. The annual effect of... -
Federal
Potomac River Topobathymetric Lidar Validation Survey Data recent views
Department of the Interior —
U.S. Geological Survey (USGS) scientists completed a multidisciplinary data collection effort during the week of October 21-25, 2019, using new technologies to map... -
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) recent views
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
Annual Winter-Spring Nitrogen Loading for the Susquehanna and Potomac Rivers, 1985 to 2016 recent views
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
Nitrogen flux estimates in support of Chesapeake Bay Hypoxia and Anoxia forecasts, 1985-2024 recent views
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 2024. Data... -
Federal
Depth to Quaternary regional unconformities offshore of the Delmarva Peninsula, including Maryland and Virginia state waters recent views
Department of the Interior —
Geologic structure and isopach maps were constructed by interpreting over 19,890 trackline kilometers of co-located multichannel boomer, sparker and chirp seismic... -
Federal
Percent of land in agricultural production and developed for selected Chesapeake Bay watersheds recent views
Department of the Interior —
Land-use estimates of agricultural and developed land for the period 1985-2012 for selected Chesapeake Bay watersheds. -
Federal
Chesapeake Bay non-tidal network shapefiles for selected station locations recent views
Department of the Interior —
This metadata report documents a shapefile of 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake Bay non-tidal... -
Federal
Static soils, climate, hydrologic, topographic, and geographic characteristics for selected Chesapeake Bay watersheds recent views
Department of the Interior —
This dataset contains values of soils, climate, hydrologic, topographic, and other geographic characteristics such as drainage area. These are considered "static"... -
Federal
Percent impervious surface for selected Chesapeake Bay watersheds recent views
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
Nitrogen flux estimates in support of Chesapeake Bay Hypoxia and Anoxia forecasts, 1985-2023 recent views
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 2023. Data... -
Federal
True color aerial imagery from unmanned aerial systems (UAS) flights: Potomac River in White's Ferry, Maryland on October 23, 2019 recent views
Department of the Interior —
These digital images were taken over an area of the Potomac River in White's Ferry, Maryland using 3DR Solo unmanned aircraft systems (UAS) on October 23, 2019. These... -
Federal
Nutrient contributions from point sources, combined sewer overflows, and wastewater treatment plants for selected Chesapeake Bay watersheds recent views
Department of the Interior —
The dataset contains estimates for total nitrogen and total phosphorus loads from point sources, combined sewer overflows, wastewater treatment plants that discharge... -
Federal
Palmer Hydrological Drought Index (PHDI) values for selected Chesapeake Bay watersheds recent views
Department of the Interior —
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... -
Federal
Radiometric thermal aerial imagery from unmanned aerial systems (UAS) flights: Potomac River in Shepherdstown, West Virginia on October 21, 2019 recent views
Department of the Interior —
These digital images were taken over an area of the Potomac River in Shepherdstown, West Virginia using 3DR Solo unmanned aircraft systems (UAS) on October 21, 2019.... -
Federal
Nitrogen and phosphorus from fertilizer and manure for selected Chesapeake Bay watersheds recent views
Department of the Interior —
This dataset contains estimates of the yearly sum of total nitrogen and total phosphorus (hereafter referred to as nitrogen and phosphorus) inputs from fertilizer... -
Federal
Percent agricultural land enrolled in the Conservation Reserve Program for selected Chesapeake Bay watersheds recent views
Department of the Interior —
These data report the percent of agricultural land, within each selected Chesapeake Bay watershed, that is enrolled in the Conservation Reserve Program (CRP), based... -
Federal
Potomac River ADCP Bathymetric Survey, October 2019 recent views
Department of the Interior —
Water-penetrating LiDAR technology was used to remotely sense bathymetric elevation data as part of a spatial data acquisition on the Potomac River. In support of...
55 datasets found