Found 80 datasets matching filters.
-
This dataset contains estimates of the yearly sum of total nitrogen and total phosphorus (hereafter referred to as nitrogen and phosphorus) inputs from fertilizer applications and from manure...
Search relevance: 1.00 | Views last month: 17 | Published on: 2026-03-03 -
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
Search relevance: 1.00 | Views last month: 4 | Published on: 2026-01-31 -
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 slightly-modified version of the...
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-03 -
This metadata report documents a shapefile of watershed boundaries for 84 selected United States Geological Survey (USGS) water quality stations that are part of the Chesapeake Bay non-tidal network (NTN).
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-03 -
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-01-29 -
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
Search relevance: 1.00 | Views last month: 2 | Published on: 2026-01-29 -
This dataset provides estimates of annual and seasonal precipitation for selected Chesapeake Bay watersheds. Season 1 is November-February; season 2 is March-June; and season 3 is July-October.
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
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: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-29 -
This data set includes nitrate concentration, water temperature, and discharge collected every 15 minutes during Dec. 2011 - Nov. 2013 from the USGS gage at the Potomac River near Wash, DC, Little...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
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 and validate bathymetry over a...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
Bathymetric LiDAR technology was used to collect riverbed elevation data along the Potomac River. In support of this effort, a bathymetric survey with a boat-mounted acoustic Doppler current...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
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...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
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 the Mid-Atlantic region of the...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
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: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
These data provide an accurate high-resolution shoreline compiled from imagery of POTOMAC RIVER, WASHINGTON TO MASON NECK, DC-MD-VA . This vector shoreline data is based on an office...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-01-23 -
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
Search relevance: 1.00 | Views last month: 0 | Published on: 2025-12-20 -
H11693: NOS Hydrographic Survey , Potomac River Recon, District of Columbia and Maryland, 2007-06-21
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
Search relevance: 1.00 | Views last month: 0 | Published on: 2025-12-20 -
Geologic structure and isopach maps were constructed by interpreting over 19,890 trackline kilometers of co-located multichannel boomer, sparker and chirp seismic reflection profiles from the...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
The National Oceanic and Atmospheric Administration (NOAA) has the statutory mandate to collect hydrographic data in support of nautical chart compilation for safe navigation and to provide...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-01-29
