43 datasets found
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Federal
U.S. Geological Survey East Coast Sediment Texture Database (2014, ECSTDB2014.SHP)
Department of the Interior —
This sediment database contains location, description, and texture of samples taken by numerous marine sampling programs. Most of the samples are from the Atlantic... -
Federal
Nitrogen flux estimates in support of Chesapeake Bay Hypoxia and Anoxia forecasts, 1985-2024
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
Nitrogen and phosphorus from fertilizer and manure for selected Chesapeake Bay watersheds
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
U.S. Geological Survey East Coast Sediment Texture Database (ECSTDB2011.SHP, 2011)
Department of the Interior —
This sediment database contains location, description, and texture of samples taken by numerous marine sampling programs. Most of the samples are from the Atlantic... -
Federal
Detrital Zircon U-Pb data from selected Appalachian rivers and Outer Banks-area coastal sediments
Department of the Interior —
U-Pb isotopic data from zircon grains from the sediment bedload of seven modern rivers: the Susquehanna, Potomac, Roanoke, James, Peedee, Tar, and Cape Fear, as well... -
Federal
Laboratory studies on the thermal biology of freshwater mussels and their host fish species
Department of the Interior —
Data are included for laboratory studies evaluating the thermal biology of several freshwater mussel species and their host fish including dwarf wedgemussel... -
Federal
Subsurface Facies within the Susquehanna River Valley in South-Central Broome County, Towns of Conklin and Kirkwood, New York
Department of the Interior —
The U.S. Geological Survey (USGS) is providing a polygon feature class delineating and describing the subsurface facies within the Binghamton East 1:24,000 quadrangle... -
Federal
Study area boundary within the Susquehanna River Valley in South-Central Broome County, Towns of Conklin and Kirkwood
Department of the Interior —
The U.S. Geological Survey (USGS) is providing a polygon feature class showing the extent of the study area, the Binghamton East 1:24,000 quadrangle, located within... -
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
Estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014
Department of the Interior —
This metadata record documents 2 comma delimited tables representing output from the Chesapeake Bay Program Phase 5.3.2 Watershed Model. The effect of best management... -
Federal
Percent agricultural land enrolled in the Conservation Reserve Program for selected Chesapeake Bay watersheds
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
Best management practice implementation in the Chesapeake Bay watershed from 1985 to 2014
Department of the Interior —
This metadata record documents 3 sets of comma delimited tables representing the amount of reported best management practice (BMP) implementation within the... -
Federal
Implementation of conservation tillage and cover crops in the Chesapeake Bay watershed, 1985 to 2012
Department of the Interior —
Conservation tillage practices and cover crops are used throughout the Chesapeake Bay watershed to reduce soil loss and improve water quality. Implementation of these... -
Federal
Susquehanna River Basin freshwater mussel surveys: 2008-2015
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 winter-spring nitrogen loads for the Susquehanna and Potomac Rivers, 1985 to 2018
Department of the Interior —
Winter-spring nitrogen loads as measured at the Susquehanna River at Conowingo Maryland and Potomac River at Washington, D.C. have been determined to be an effective... -
Federal
Aquifer Boundaries within the Susquehanna River Valley in South-Central Broome County, Towns of Conklin and Kirkwood
Department of the Interior —
The U.S. Geological Survey (USGS) is providing a polygon feature class containing the approximate locations and confining units of the unconfined and confined... -
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
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
Nitrogen flux estimates in support of Chesapeake Bay Hypoxia and Anoxia forecasts, 1985-2023
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
Nutrient contributions from point sources, combined sewer overflows, and wastewater treatment plants for selected Chesapeake Bay watersheds
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...
43 datasets found