Percent impervious surface for selected Chesapeake Bay watersheds

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 the 2012 NAWQA Wall-to-wall Anthropogenic Land-use Trends (NWALT) product to the 2011 National Land Cover Database (NLCD) imperviousness, then applying those coefficients to previous years (1974-2002) of the NWALT dataset.

Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, impervious surfaces, surface water quality, Fewer tags

1) Best management practice implementation in the Chesapeake Bay watershed from 1985 to 2014

This metadata record documents 11 comma delimited tables representing the amount of reported best management practice (BMP) implementation for the years from 1985 to 2014 at three geographic scales: county or land-river modeling segment, River Input Monitoring (RIM) station drainage areas, and the entire Chesapeake Bay Watershed (CBWS). Data originated from the Chesapeake Bay Watershed jurisdictions including Maryland, Pennsylvania, Virginia, Delaware, New York, West Virginia, and the District of Columbia. Data were reported to the Chesapeake Bay Program for an annual review of progress toward meeting nitrogen, phosphorus, and sediment reduction goals.

Categories: Data; Tags: Animal, Appomattox River, BMP, Best management practice, Chesapeake Bay, All tags... Chesapeake Bay watershed, Choptank River, Conservation practice, Delaware, District of Columbia, Isolation scenarios, James River, Land use, Land use change, Load reduction, Maryland, Mattaponi River, New York, Nitrogen, Non-RIM Eastern Shore, Non-RIM Western Shore, Nutrient sources, Pamunkey River, Patuxent River, Pennsylvania, Phosphorus, Potomac River, Rappahannock River, Sediment, Susquehanna River, USA, United States, Virginia, Watershed Model, West Virginia, Fewer tags

Shapefiles of hydrogeologic unit extents and top-surface altitude contours used in the revised hydrogeologic framework for the Virginia Coastal Plain Southwest of the James River

A revision to the hydrogeologic framework of the Virginia coastal plain southwest of the James River was developed by USGS during 2019-2021. This revision includes modifications to existing understanding of the groundwater system in Prince George, Surry, Sussex, Isle of Wight, and Southampton counties and the cities of Franklin and Suffolk in southeast Virginia. This USGS data release contains a csv file of interpreted borehole hydrogeologic-unit top-surface altitudes, a shapefile of the study area extent, a shapefile of faults within the study area, shapefiles of altitude contours for 12 hydrogeologic-unit top surfaces, shapefiles of hydrogeologic-unit margins for 10 hydrogeologic-units in the coastal plain of...

Categories: Data; Tags: Franklin city, Geophysics, Hydrology, Isle of Wight County, James River, All tags... Prince George County, Southampton County, Stratigraphy, Suffolk city, Surry County, Sussex County, USGS Science Data Catalog (SDC), Virginia, Water Resources, aquifer, borehole logging, confining unit, groundwater, hydrogeologic framework, hydrogeology, hydrology, Fewer tags

Detailed geologic mapping geodatabase for the Blue Ridge Parkway in Virginia with station point photographs

The US Geological Survey, in cooperation with the National Park Service, mapped 35 7.5-minute quadrangles, within a 2-mile-wide+ corridor centered on the Parkway, from BLRI (Blue Ridge Parkway) Mile Post (MP) 0 near Afton, Virginia southward to MP 218 at Cumberland Knob, approximately 1.3 km south of the Virginia – North Carolina State Line. Detailed bedrock geologic mapping for this project was conducted at 1:24,000-scale by systematically traversing roads, trails, creeks, and ridges within and adjacent to the 2-mile-wide+ corridor along the 216.9-mile length of the BLRI in Virginia. Geologic data at more than 23,000 station points were collected during this project (September 2009 – February 2014), with approximately...

Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Adney Gap, Air Bellows Gap, Alligator Back Formation, Antietam Formation, Ashe Formation, All tags... Ashville, Bald Mountain, Balsam Gap, Beacon Heights, Bear Den, Bear Mountain Gap, Bearwallow Gap, Bedrock, Beech Gap, Beetree Gap, Benge Gap, Big Island, Big Witch Gap, Biltmore Estate, Blackhorse Gap, Blowing Rock, Blue Ridge Music Center Visitor Center, Blue Ridge Park Visitor Center and Park Headquarters, Blue Ridge Parkway, Bluff Mountain, Bottom Creek Metagranitoid Suite, Buck Creek Gap, Buena Vista, Bull Gap, Carbonate, Cherokee, Cherokee Indian Reservation, Chestoa View, Chilhowee Group, Cold Mountain, Conococheague Formation, Crabtree Falls, Crabtree Faults, Craggy Gardens Visitor Center, Craven Gap, Crossnore, Crossnore Plutonic Suite, Cumberland Knob, Daniel Boone's Trace, Deep Gap, Devils Backbone Overlook, Devils Courthouse, Diabase, Doughton Park, E.B. Jeffress Park, Elbrook Formation, Elk Pasture Gap, Ervin, Ervin, Fallingwater Cascades, Fancy Gap, Flat Rock, Folds, Formation, Fox Hunters Paradise, Geology, George Washington National Forest, Gillespie Gap, Glendale Springs, Gneiss, Graggy Dome, Grandfather Mountain, Grandfather Mountain State Park, Granite, Graveyard Fields, Great Valley Overlook, Green Knob, Greenstone Trail, Groundhog Mountain, Hampton Formation, Harpers Formation, Hawksbill Mountain, Hominy Creek, Humpback Mountain, Humpback Rocks Visitor Center, Indian Gap, Irish Gap, James River, James River Visitor Center and Canal, Jefferson National Forest, Julian Price Memorial Park, Jumpinoff Rock, Lake Powhaten, Laurel Springs, Lineville River, Linville, Linville Falls, Linville Falls Visitor Center, Little Switzerland, Looking Glass Rock Overlook, Lynchburg Group, Mabry Hill, Martinsburg Formation, McKinney Gap, Meadows of Dan, Mesoproterozoic gneisses of the Fries Thrust Sheet, Metabasalt, Metagranitoid, Moses H. Cone Memorial Park and Visitor Center, Mount Jefferson State Park, Mount Mitchell, Mount Mitchell State Park, Mount Pisgah, Museum of North Carolina Minerals Visitor Center, N&W Railroad Overlook, Nantahala National Forest, Normal Fault, North Carolina, North Carolina Arboretum, Northwest Trading Post, Oconalufte Visitor Center, Onion Mountain Overlook, Orchard Gap, Oteen, Otter Creek, Overmountain Victory Nation Historic Trail, Peach Bottom Mountain, Peaks of Otter Metagranitoid, Peaks of Otter Visitor Center, Petites Gap, Pilot Gneiss, Pineola, Pipers Gap, Pisgah National Forest, Poor Mountain, Powell Gap, Price Lake, Puckett Cabin, Purgatory Overlook, Rakes Millpond, Ravens Roost, Reverse Fault, Richland Balsam, Roanoke Mountain, Roanoke River, Roanoke River Gorge, Roanoke Valley Overlook, Rocky Knob, Rocky Knob Visitor Center, Sandy Creek Gneiss, Shady Dolomite, Sharp Top, Sherando Lake, Skyland, Southern End, Staunton River, Stone Mountain State Park, Structure, Sugarloaf Mountain, Swannanoa River, Swift Run Formation, Table Rock Mountain, Terrapin Mountain, The Lump, The Saddle, Thrust Fault, Tunnel Gap, Twenty Minute Cliff, Tye River, Tye River Gap, USGS Science Data Catalog (SDC), Unicoi Formation, Virginia, Virginia Explore Park and Visitor Center, Volunteer Gap, Wagon Road Gap, Watauga River, Waterrock Knob Visitor Center, Wayneboro Formation, Waynesboro, Wayneville, Weverton Formation, Whites Gap Overlook, Wigwarm Falls, Woodlaw, Wrights Creek, Yankee Horse Ridge, Z.B. Vance Birthplace, Fewer tags

Depth to Quaternary regional unconformities offshore of the Delmarva Peninsula, including Maryland and Virginia state waters

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 continental shelf of the Delmarva Peninsula, including Maryland and Virginia state waters. In this region, Brothers and others (2020) interpret 12 seismic units and 11 regional unconformities. They interpret the infilled channels as Late Tertiary and Quaternary courses of the Susquehanna, Potomac, Rappahannock, York and James Rivers and tributaries, in addition to a broad drainage system. These regional unconformities form a composite unconformity interpreted as the Quaternary-Tertiary (Q-T) unconformity. A depth to Tertiary...

Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: 32-bit GeoTIFF, Applied Acoustics S-Boom Source, Assateague Island, Assateague Island National Seashore, Atlantic Ocean, All tags... BOEM, Bureau of Ocean Energy Management, CMHRP, Chesapeake Bay, Chincoteague Bay, Chincoteague Bight, Chincoteague Inlet, Chincoteague Island, Chincoteague National Wildlife Refuge, Coastal and Marine Hazards and Resources Program, Cobb Island, Delaware, Delmarva Peninsula, Fisherman Island, Geologic Framework, Geometrics 16-channel Geoeel Streamer, Hog Island, Holocene, Holocene, Interpretation, James River, Marine Geology, Maryland, Maryland Energy Administration, Maryland Wind Energy Area, Myrtle Island, Parramore Island, Persimmons Point, Pleistocene, Potomac River, Quaternary, Rappahannock River, Sea floor, Seismic Interpretation, Seismic-reflection Profiles, Ship Shoal Island, Smith Island, Susquehanna River, Tertiary, U.S. Geological Survey, USGS, Unconformity, Virginia, WHCMSC, Wallops Island, Woods Hole Coastal and Marine Science Center, Wreck Island, geologic contacts, geoscientificInformation, geospatial datasets, imageryBaseMapsEarthCover, marine geology, oceans, scientific interpretation, Fewer tags

Reservoir storage for selected Chesapeake Bay watersheds

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 National Inventory of Dams (NID) 2013 dataset, for which approximately 10% of records had the dam completion date estimated.

Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, dams, reservoir storage, surface water quality, Fewer tags

Estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014

This metadata record documents 3 sets of comma delimited tables representing the amount of reported best management practice (BMP) implementation within the Chesapeake Bay watershed as well as output data from scenarios of the Chesapeake Bay Program Phase 5.3.2 Watershed Model. The scenario data were used to estimate the effects of BMPs on water quality. The data are organized by three themes (child items below); 1) BMP implementation and definitions, 2) isolation scenarios, and 3) "Progress" and "No Action" scenarios.

Categories: Data; Tags: Animal, Appomattox River, BMP, Best management practice, Chesapeake Bay, All tags... Chesapeake Bay watershed, Choptank River, Conservation practice, Delaware, District of Columbia, Isolation scenarios, James River, Land Use Change, Land use, Land use change, Load reduction, Maryland, Mattaponi River, New York, Nitrogen, Non-RIM Eastern Shore, Non-RIM Western Shore, Nutrient sources, Pamunkey River, Patuxent River, Pennsylvania, Phosphorus, Potomac River, Rappahannock River, Sediment, Susquehanna River, USA, USGS Science Data Catalog (SDC), United States, Virginia, Water Quality, Watershed Model, West Virginia, Fewer tags

Chesapeake Bay Region Virginia River Bluff and Wetland Extent Mapping - 2020 Field Survey Data

U.S. Geological Survey (USGS) and Virginia Institute of Marine Science (VIMS) scientists conducted field data collection efforts during June 11th - 16th, 2020, using a combination of remote sensing technologies to map riverbank and wetland topography and vegetation at five sites in the Chesapeake Bay Region of Virginia. The five sites are located along the James, Severn, and York Rivers. The work was initiated to evaluate the utility of different remote sensing technologies in mapping river bluff and wetland topography and vegetation for change detection and sediment transport modeling. The USGS team collected Global Navigation Satellite System (GNSS), total station, and ground based lidar (GBL) data while the VIMS...

Tags: Bathymetry, Captain Sinclair's Recreational Area, Carter's Grove, Chesapeake Bay, Chippokes Plantation State Park, All tags... CoNED, Coastal National Elevation Database Applications Project, EROS, Earth Resources Observation and Science Center, Elevation, GBL, GNSS, Global Navigation Satellite System, Gloucester Point, Glouster County, Ground Based Lidar, James City County, James River, King and Queen County, Lands End, Lidar, Light Detection and Ranging, Mobjack Bay, Mount Folly, River Bluffs, SDB, Satellite Derived Bathymetry, Severn River, SfM, State of Virginia, Structure from Motion, Surry County, TLS, Terrestrial Laser Scanning, Topography, Total Station, UAS, UAV, VIMS CCRM, Virginia Institute of Marine Science, Virginia Institute of Marine Science Center for Coastal Resources Management, Wetlands, York County, York River, York River State Park, elevation, Fewer tags

Static soils, climate, hydrologic, topographic, and geographic characteristics for selected Chesapeake Bay watersheds

This dataset contains values of soils, climate, hydrologic, topographic, and other geographic characteristics such as drainage area. These are considered "static" characteristics, which do not change over the time period of this study.

Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, climate, geographic characteristics, hydrology, soils, surface water quality, Fewer tags

Seasonal precipitation for selected Chesapeake Bay watersheds

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.

Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, precipitation (atmospheric), surface water quality, Fewer tags

Detailed geologic mapping geodatabase for the Blue Ridge Parkway in Virginia

The US Geological Survey, in cooperation with the National Park Service, mapped 35 7.5-minute quadrangles, within a 2-mile-wide+ corridor centered on the Parkway, from BLRI (Blue Ridge Parkway) Mile Post (MP) 0 near Afton, Virginia southward to MP 218 at Cumberland Knob, approximately 1.3 km south of the Virginia – North Carolina State Line. Detailed bedrock geologic mapping for this project was conducted at 1:24,000-scale by systematically traversing roads, trails, creeks, and ridges within and adjacent to the 2-mile-wide+ corridor along the 216.9-mile length of the BLRI in Virginia. Geologic data at more than 23,000 station points were collected during this project (September 2009 – February 2014), with approximately...

Types: Citation; Tags: Adney Gap, Air Bellows Gap, Alligator Back Formation, Antietam Formation, Ashe Formation, All tags... Ashville, Bald Mountain, Balsam Gap, Beacon Heights, Bear Den, Bear Mountain Gap, Bearwallow Gap, Bedrock, Beech Gap, Beetree Gap, Benge Gap, Big Island, Big Witch Gap, Biltmore Estate, Blackhorse Gap, Blowing Rock, Blue Ridge Music Center Visitor Center, Blue Ridge Park Visitor Center and Park Headquarters, Blue Ridge Parkway, Bluff Mountain, Bottom Creek Metagranitoid Suite, Buck Creek Gap, Buena Vista, Bull Gap, Carbonate, Cherokee, Cherokee Indian Reservation, Chestoa View, Chilhowee Group, Cold Mountain, Conococheague Formation, Crabtree Falls, Crabtree Faults, Craggy Gardens Visitor Center, Craven Gap, Crossnore, Crossnore Plutonic Suite, Cumberland Knob, Daniel Boone's Trace, Deep Gap, Devils Backbone Overlook, Devils Courthouse, Diabase, Doughton Park, E.B. Jeffress Park, Elbrook Formation, Elk Pasture Gap, Ervin, Ervin, Fallingwater Cascades, Fancy Gap, Flat Rock, Folds, Formation, Fox Hunters Paradise, Geology, George Washington National Forest, Gillespie Gap, Glendale Springs, Gneiss, Graggy Dome, Grandfather Mountain, Grandfather Mountain State Park, Granite, Graveyard Fields, Great Valley Overlook, Green Knob, Greenstone Trail, Groundhog Mountain, Hampton Formation, Harpers Formation, Hawksbill Mountain, Hominy Creek, Humpback Mountain, Humpback Rocks Visitor Center, Indian Gap, Irish Gap, James River, James River Visitor Center and Canal, Jefferson National Forest, Julian Price Memorial Park, Jumpinoff Rock, Lake Powhaten, Laurel Springs, Lineville River, Linville, Linville Falls, Linville Falls Visitor Center, Little Switzerland, Looking Glass Rock Overlook, Lynchburg Group, Mabry Hill, Martinsburg Formation, McKinney Gap, Meadows of Dan, Mesoproterozoic gneisses of the Fries Thrust Sheet, Metabasalt, Metagranitoid, Moses H. Cone Memorial Park and Visitor Center, Mount Jefferson State Park, Mount Mitchell, Mount Mitchell State Park, Mount Pisgah, Museum of North Carolina Minerals Visitor Center, N&W Railroad Overlook, Nantahala National Forest, Normal Fault, North Carolina, North Carolina Arboretum, Northwest Trading Post, Oconalufte Visitor Center, Onion Mountain Overlook, Orchard Gap, Oteen, Otter Creek, Overmountain Victory Nation Historic Trail, Peach Bottom Mountain, Peaks of Otter Metagranitoid, Peaks of Otter Visitor Center, Petites Gap, Pilot Gneiss, Pineola, Pipers Gap, Pisgah National Forest, Poor Mountain, Powell Gap, Price Lake, Puckett Cabin, Purgatory Overlook, Rakes Millpond, Ravens Roost, Reverse Fault, Richland Balsam, Roanoke Mountain, Roanoke River, Roanoke River Gorge, Roanoke Valley Overlook, Rocky Knob, Rocky Knob Visitor Center, Sandy Creek Gneiss, Shady Dolomite, Sharp Top, Sherando Lake, Skyland, Southern End, Staunton River, Stone Mountain State Park, Structure, Sugarloaf Mountain, Swannanoa River, Swift Run Formation, Table Rock Mountain, Terrapin Mountain, The Lump, The Saddle, Thrust Fault, Tunnel Gap, Twenty Minute Cliff, Tye River, Tye River Gap, Unicoi Formation, Virginia, Virginia Explore Park and Visitor Center, Volunteer Gap, Wagon Road Gap, Watauga River, Waterrock Knob Visitor Center, Wayneboro Formation, Waynesboro, Wayneville, Weverton Formation, Whites Gap Overlook, Wigwarm Falls, Woodlaw, Wrights Creek, Yankee Horse Ridge, Z.B. Vance Birthplace, Fewer tags

Chesapeake Bay Region Virginia River Bluff and Wetland Extent Mapping

The Chesapeake Bay Estuary is the largest estuary in the United States and provides habitats for diverse wildlife and aquatic species, protects communities against flooding, reduces pollution to waterways, and supports local economies through commercial and recreational activities. In the Spring of 2018, the U.S. Geological Survey (USGS) Coastal National Elevation Database (CoNED) Applications Project at the USGS Earth Resources Observation and Science (EROS) Center and the Virginia Institute of Marine Science (VIMS) Center for Coastal Resources Management (CCRM) initiated collaborative work. The goal of this collaboration is to evaluate how various remote sensing technologies can be employed to model estuarine...

Tags: Bathymetry, Captain Sinclair's Recreational Area, Carter's Grove, Chesapeake Bay, Chippokes Plantation State Park, All tags... CoNED, Coastal National Elevation Database Applications Project, EROS, Earth Resources Observation and Science Center, Elevation, GBL, GNSS, Geography, Geomorphology, Global Navigation Satellite System, Gloucester Point, Glouster County, Ground Based Lidar, Hydrology, James City County, James River, King and Queen County, Lands End, Lidar, Light Detection and Ranging, Marine Geology, Mobjack Bay, Mount Folly, Remote Sensing, River Bluffs, SDB, Satellite Derived Bathymetry, Severn River, SfM, State of Virginia, Structure from Motion, Surry County, TLS, Terrestrial Laser Scanning, Topography, Total Station, UAS, UAV, USGS Science Data Catalog (SDC), VIMS CCRM, Virginia Institute of Marine Science, Virginia Institute of Marine Science Center for Coastal Resources Management, Wetlands, York County, York River, York River State Park, elevation, Fewer tags

Whole Rock Geochemistry and Uranium Lead Isotopic Data from the Dinwiddie Terrane, Virginia, USA

This data release includes whole rock geochemical data, and uranium-lead isotopic data collected by both Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Sensitive High Resolution Ion Microprobe-Reverse Geometry (SHRIMP-RG) methods. Whole rock geochemistry was collected by Activation Laboratories in Ancaster, Ontario. LA-ICP-MS data was collected at the PLASMA at the USGS in Denver, Colorado. SHRIMP-RG data was collected at the USGS-Stanford SHRIMP-RG in Palo Alto, California. Rock samples for all methods were collected by Mark Carter of the USGS. The whole rock geochemistry and uranium lead isotopic data constrain the age and origin of rocks in the newly defined Dinwiddie Terrane of eastern...

Categories: Data; Tags: FBGC, Florence Bascom Geoscience Center, Geochemistry, Geochemistry, Geochronology, All tags... James River, LA-ICP-MS, Mineral Resources, NGCMP, National Cooperative Geologic Mapping Program, Piedmont, Piedmont, Richmond, SHRIMP-RG, Structural Geology, U.S. Geological Survey, U/Pb, USGS, USGS Science Data Catalog (SDC), Virginia, biota, Fewer tags

LiDAR Data Collection for the James River Watershed and Adjacent Areas in South Dakota and North Dakota

The collection of LiDAR data for the James River basin began in 2010. The detailed surface elevation data will be used for conservation planning, design, research, delivery, floodplain mapping and hydrologic modeling utilizing LiDAR technology. The project area includes part of the James River watershed and adjacent areas in North and South Dakota. The project encompasses 16,825 sq miles and the 2010 phase of the project acquired 8,060 sq miles of LiDAR data and subsequent terrain data. This project represents the second phase with an objective to collect the remaining 8,765 square miles of the project area.

Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2011, 2012, Academics & scientific researchers, Data Acquisition and Development, Datasets/Database, All tags... EARTH SCIENCE > LAND SURFACE > LANDSCAPE, Federal resource managers, James River, LCC, LCC Network Science Catalog, Landscape Conservation Cooperatives, Plains and Prairie Potholes Landscape Conservation Cooperative, Project, Report, State agencies, US38 = North Dakota, US46 = South Dakota, Vulnerability Assessment, completed, environment, environment, plains and prairie potholes landscape conservation cooperative, prairie potholes, wetlands, Fewer tags

2) Estimated effect of best management practice implementation on water quality in the Chesapeake Bay watershed from 1985 to 2014

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 practices (BMP) in 2014 in the Chesapeake Bay Watershed (CBWS) is estimated through a series of model scenarios that isolate the effect of individual BMPs. Data include a table describing the series of isolation scenarios and the summarized output of all scenarios. Scenario output include the estimated nitrogen, phosphorus, and sediment mass reductions for each BMP. Analysis of BMP implementation over time can provide insight to water quality restoration progress.

Categories: Data; Tags: Animal, Appomattox River, BMP, Best management practice, Chesapeake Bay, All tags... Chesapeake Bay watershed, Choptank River, Conservation practice, Delaware, District of Columbia, Isolation scenarios, James River, Land use, Land use change, Load reduction, Maryland, Mattaponi River, New York, Nitrogen, Non-RIM Eastern Shore, Non-RIM Western Shore, Nutrient sources, Pamunkey River, Patuxent River, Pennsylvania, Phosphorus, Potomac River, Rappahannock River, Sediment, Susquehanna River, USA, United States, Virginia, Watershed Model, West Virginia, Fewer tags

Chesapeake Bay non-tidal network shapefiles for selected watershed boundaries

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).

Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, surface water quality, total nitrogen, total phosphorus, Fewer tags

Chesapeake Bay non-tidal network shapefiles for selected station locations

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 network (NTN).

Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, surface water quality, total nitrogen, total phosphorus, Fewer tags

Nitrogen and phosphorus from fertilizer and manure for selected Chesapeake Bay watersheds

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 applications in selected Chesapeake Bay watersheds from 1985 through 2012.

Categories: Data; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, agriculture, nutrient content (water), surface water quality, total nitrogen, total phosphorus, wastewater discharge, Fewer tags

Nutrient contributions from point sources, combined sewer overflows, and wastewater treatment plants for selected Chesapeake Bay watersheds

The dataset contains estimates for total nitrogen and total phosphorus loads from point sources, combined sewer overflows, wastewater treatment plants that discharge to surface water for selected Chesapeake Bay watersheds. For source information, please refer to the process steps in this metadata report.

Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, nitrogen, nutrient content (water), phosphorus, surface water quality, wastewater discharge, Fewer tags

Percent agricultural land enrolled in the Conservation Reserve Program for selected Chesapeake Bay watersheds

These data report the percent of agricultural land, within each selected Chesapeake Bay watershed, that is enrolled in the Conservation Reserve Program (CRP), based on county-level data for each year from the U.S. Department of Agriculture Farm Service Agency.

Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, District of Columbia, James River, Maryland, All tags... New York, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, West Virginia, agriculture, land use change, surface water quality, Fewer tags