Chesapeake Bay Watershed 2011 Edition Land Cover Data Release

The US Geological Survey Chesapeake Bay Watershed Land Cover Data Series, 2011 edition, (CBLCD-e11) consists of Level I Land Cover data for the years 1984, 1992, 2001, 2006 and 2011. It consists of a series of five 8-bit unsigned integer raster data files of 30 meter spatial resolution in Albers Conic Equal Area projection, NAD83 datum. The 1984 – 2006 data layers were created by aggregating most Level II Anderson classes of the USGS CBLCD Land Cover Data Series released in 2010 (Irani and Claggett, 2010).

Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CBLCD, Chesapeak Bay watershed, Chesapeake Bay, Chesapeake Bay Program, Chesapeake Bay Watershed, All tags... Delaware, District of Columbia, Estuarine, Estuary, Impaired Waters, Land Change, Land Cover, Land Use, Land Use Change, Maryland, New York State, Pennsylvania, Virginia, West Virginia, environment, estuary, geoscientificInformation, inlandWaters, Fewer tags

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

Data on denitrification and ecological characteristics of nontidal floodplains, Chesapeake Bay watershed, USA, 2013-2016

This data set presents attributes of floodplain ecosystem characteristics including floodplain soil denitrification, floodplain soil biogeochemistry, floodplain vegetation, floodplain sedimentation, floodplain and channel morphometry, stream discharge and water quality, floodplain climate, floodplain physiographic region, and catchment land cover. Attributes are associated with 18 floodplains of the Chesapeake Bay watershed. For many of these attributes, mean values are summaries of multiple measurements made within each floodplain site.

Categories: Data; Tags: Maryland, Pennsylvania, USGS Science Data Catalog (SDC), Virginia, West Virginia, All tags... air temperature, alluvial soil, biogeochemistry, climate, denitrification, floodplains, land cover, nitrogen, riparian soil, rivers, season, sediment deposition, soil, streams, Fewer tags

Total Thickness of Glacial Deposits

The glacial aquifer system of the United States encompasses all or parts of 25 states and is the most widely used supply of drinking water in the Nation (Maupin and Barber, 2005; Maupin and Arnold, 2010). A series of seven raster data sets were derived from a database of water-well drillers' records that was compiled in partial fulfillment of the goals of the U.S. Geological Survey’s Groundwater Availability and Use assessment program (U.S. Geological Survey, 2002). They contain hydrogeologic information for areas of the U.S. that are north of the southern limit of Pleistocene glaciation, including the total thickness of glacial deposits, thickness of coarse-grained sediment within the glacial deposits, specific-capacity...

Tags: Aquifer, Coarse, Connecticut, Deposits, Glacial, All tags... Gravel, Groundwater, Hydraulic Conductivity, Hydrogeology, Idaho, Illinois, Indiana, Iowa, Kansas, Massachusetts, Michigan, Minnesota, Montana, Nebraska, New Hampshire, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, Sand, Sediment, South Dakota, Specific Capacity, Thickness, Transmissivity, Vermont, Water Availability, Wisconsin, environment, geoscientificInformation, inlandWaters, Fewer tags

USGS 1:1,000,000-Scale Federal Lands of the United States 201412 FileGDB

This map layer consists of federally owned or administered lands of the United States, Puerto Rico, and the U.S. Virgin Islands. For the most part, only areas of 320 acres or more are included; some smaller areas deemed to be important or significant are also included. There may be private inholdings within the boundaries of Federal lands in this map layer. Some established Federal lands which are larger than 320 acres are not included in this map layer, because their boundaries were not available from the owning or administering agency.

Tags: Air Force, Alabama, Alaska, Arizona, Arkansas, All tags... Army, BIA, BLM, BOR, Bureau of Indian Affairs, Bureau of Land Management, Bureau of Reclamation, California, Coast Guard, Colorado, Connecticut, Coordinated Area, DHS, DOC, DOD, DOE, DOJ, DOL, DOT, Delaware, Department of Commerce, Department of Defense, Department of Energy, Department of Health and Human Services, Department of Homeland Security, Department of Justice, Department of Labor, Department of Transportation, Department of Veterans Affairs, District of Columbia, Downloadable Data, Downloadable Data, Experimental Range, Experimental Station, FS, FWS, Federal Center, Federal Correctional Complex, Federal Penitentiary, Federal lands, Field Site, FileGDB 10.1, FileGDB 10.1, Fish and Wildlife Service, Flight Center, Florida, Forest Service, GSA, General Services Administration, Georgia, HHS, Hawaii, Idaho, Illinois, Indian Reservation, Indiana, Iowa, Job Corps Center, Kansas, Kentucky, Law Enforcement Training Center, Louisiana, MWAA, MWAA, Maine, Marine Corps, Maryland, Massachusetts, Metropolitan Washington Airports Authority, Michigan, Minnesota, Mississippi, Missouri, Montana, NASA, NIH, NPS, National, National, National Aeronautics and Space Administration, National Battlefield, National Cemetery, National Conservation Area, National Fish Hatchery, National Forest, National Game Preserve, National Grassland, National Guard, National Historic Park, National Historic Reserve, National Historic Site, National Institutes of Health, National Laboratory, National Lakeshore, National Memorial, National Military Park, National Monument, National Natural Landmark, National Park, National Park Service, National Parkway, National Preserve, National Recreation Area, National Reserve, National Scenic Area, National Seashore, National Wild and Scenic River, National Wilderness Area, National Wildlife Refuge, Naval Petroleum Reserve, Navy, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Public Domain Land, Puerto Rico, Research Facility, Research Natural Area, Research Station, Rhode Island, Scenic Area, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets - Boundaries, South Carolina, South Dakota, Space Center, TVA, Tennessee, Tennessee Valley Authority, Test Site, Texas, U.S. Coast Guard, U.S. Department of Agriculture, U.S. Fish and Wildlife Service, U.S. Forest Service, U.S. Virgin Islands, US, USA, USDA, United States, Utah, VA, Vermont, Virgin Islands, Virginia, Washington, Waterfowl Production Area, West Virginia, Wild Horse Range, Wild and Scenic River, Wilderness Area, Wildlife Management Area, Wisconsin, Wyoming, boundaries, intelligenceMilitary, society, Fewer tags

Nearshore Water Quality Collected on Lake Erie on June 24, 2015, August 11, 2015, and August 19, 2015

This data release supports the following publication: Hittle, Elizabeth, 2017, Longshore water-current velocity and the potential for transport of contaminants: A pilot study in Lake Erie from Walnut Creek to Presque Isle State Park Beaches, Erie, Pennsylvania, June and August 2015: U.S. Geological Survey Open-File Report 2016–1206 126 p., https://doi.org/10.3133/ofr20161206 Water-quality grab samples were collected about a meter from shore and coincide with the 25 longshore water-current velocity transects as closely as conditions would allow. Nearshore water-quality grab samples were collected on June 24, August 11, and August 19, 2015. Samples were analyzed for bacteria concentration, temperature, specific condictivity,...

Categories: Data; Tags: Erie County, Lake Erie, Pennsylvania, Presque Isle State Park, Suspended Sediment, All tags... Water Quality, Fewer tags

Estimated Use of Water by Subbasin (HUC8) and Subwatershed (HUC12) in the Delaware River Basin, 2010

These datasets present offstream water use estimates from 2010 which are aggregated to the 8-digit (subbasin) and 12-digit (subwatershed) hydrologic unit level for the Delaware River Basin. The data support USGS Scientific Investigations Report 2015-5142.

Categories: Data; Tags: DE, Delaware, Delaware River, Delaware River Basin, NJ, All tags... NY, New Jersey, New York, PA, Pennsylvania, USGS Science Data Catalog (SDC), Water Resources, water use, water withdrawals, withdrawals, Fewer tags

South Dakota: NFHAP 2010 HCI Scores and Disturbances

This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the state of South Dakota. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the state boundary of South Dakota. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) representative of...

Categories: Data; Types: ArcGIS REST Map Service, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anthropogenic factors, Aquatic habitats, Atlantic Coast FHP, Catchment areas, Connecticut, All tags... DC, Delaware, Environmental conditions, Florida, Georgia, Habitat suitability, Inland water environments, Landscape ecology, Linked to the National Hydrography Dataset Plus (1:100,000), Maine, Maryland, Massachusetts, National Assessment Data, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, River basins, Rivers, South Carolina, Spatial Data, Stream Characterization, Streams, Vermont, Virginia, Water quality measurement, West Virginia, Fewer tags

Metabolism estimates for 356 U.S. rivers (2007-2017): 3. Timeseries data

This dataset provides timeseries data on water quality and quantity, as collected or computed from outside sources. The format is many tables with one row per time series observation (1 tab-delimited file per site-variable combination, 1 zip file per site). This compilation of data is intended for use in estimating or interpreting metabolism. Sites were included if they met the initial criteria of having at least 100 dissolved oxygen observations and one of the accepted NWIS site types ('ST','ST-CA','ST-DCH','ST-TS', or 'SP'). This dataset is part of a larger data release of metabolism model inputs and outputs for 356 streams and rivers across the United States (https://doi.org/10.5066/F70864KX). The complete release...

Tags: 007, 012, AK, AL, AR, All tags... Aerobic respiration, Alabama, Alaska, Arkansas, CA, CO, CT, California, Carbon, Carbon dioxide, Colorado, Connecticut, DC, DE, Delaware, Dissolved oxygen, District of Columbia, Energy metabolism, FL, Florida, GA, Gas exchange, Georgia, IA, ID, IL, IN, Idaho, Illinois, Indiana, Iowa, KS, KY, Kansas, Kentucky, LA, Louisiana, MA, MD, ME, MI, MN, MO, MS, MT, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, NC, ND, NE, NJ, NM, NY, Nebraska, New Jersey, New Mexico, New York, North Carolina, North Dakota, OH, OK, OR, Ohio, Oklahoma, Oregon, Oxygen, PA, PR, Pennsylvania, Photosynthesis, Primary production, Puerto Rico, Rivers, SC, SD, South Carolina, South Dakota, Streams, TN, TX, Tennessee, Texas, US, UT, United States, Utah, VA, Virginia, WA, WI, WV, WY, Washington, Water courses, West Virginia, Wisconsin, Wyoming, environment, inlandWaters, Fewer tags

Georgia: NFHAP 2010 HCI Scores and Disturbances

This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the state of Georgia. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the state boundary of Georgia. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) representative of conditions...

Categories: Data; Types: ArcGIS REST Map Service, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anthropogenic factors, Aquatic habitats, Atlantic Coast FHP, Catchment areas, Connecticut, All tags... DC, Delaware, Environmental conditions, Florida, Georgia, Habitat suitability, Inland water environments, Landscape ecology, Linked to the National Hydrography Dataset Plus (1:100,000), Maine, Maryland, Massachusetts, National Assessment Data, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, River basins, Rivers, South Carolina, Spatial Data, Stream Characterization, Streams, Vermont, Virginia, Water quality measurement, West Virginia, Fewer tags

Louisiana: NFHAP 2010 HCI Scores and Disturbances

This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the state of Louisiana. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the state boundary of Louisiana. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled; (3) representative of conditions...

Categories: Data; Types: ArcGIS REST Map Service, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anthropogenic factors, Aquatic habitats, Atlantic Coast FHP, Catchment areas, Connecticut, All tags... DC, Delaware, Environmental conditions, Florida, Georgia, Habitat suitability, Inland water environments, Landscape ecology, Linked to the National Hydrography Dataset Plus (1:100,000), Maine, Maryland, Massachusetts, National Assessment Data, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, River basins, Rivers, South Carolina, Spatial Data, Stream Characterization, Streams, Vermont, Virginia, Water quality measurement, West Virginia, Fewer tags

Texture-Based Estimated Equivalent Transmissivity of the Glacial Deposits

The glacial aquifer system of the United States encompasses all or parts of 25 states and is the most widely used supply of drinking water in the Nation (Maupin and Barber, 2005; Maupin and Arnold, 2010). A series of seven raster data sets were derived from a database of water-well drillers' records that was compiled in partial fulfillment of the goals of the U.S. Geological Survey’s Groundwater Availability and Use assessment program (U.S. Geological Survey, 2002). They contain hydrogeologic information for areas of the U.S. that are north of the southern limit of Pleistocene glaciation, including the total thickness of glacial deposits, thickness of coarse-grained sediment within the glacial deposits, specific-capacity...

Tags: Aquifer, Coarse, Connecticut, Deposits, Glacial, All tags... Gravel, Groundwater, Hydraulic Conductivity, Hydrogeology, Idaho, Illinois, Indiana, Iowa, Kansas, Massachusetts, Michigan, Minnesota, Montana, Nebraska, New Hampshire, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, Sand, Sediment, South Dakota, Specific Capacity, Thickness, Transmissivity, Vermont, Water Availability, Wisconsin, environment, geoscientificInformation, inlandWaters, Fewer tags

Chesapeake Bay River Input Monitoring Network 1985-2019: WRTDS output data

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2019. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the RIM watersheds.

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... United States, Virginia, WRTDS, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags

Exploring the exceptional performance of a deep learning stream temperature model and the value of streamflow data: 3 Model inputs

This data release component contains model inputs including river basin attributes, weather forcing data, and simulated and observed river discharge.

Categories: Data; Tags: AL, Alabama, DE, Delaware, GA, All tags... Georgia, IA, ID, Idaho, Iowa, KS, Kansas, MA, MD, ME, MI, MS, Maine, Maryland, Massachusetts, Michigan, Mississippi, NC, NJ, NM, NV, NY, Nevada, New Jersey, New Mexico, New York, North Carolina, OH, OK, OR, Ohio, Oklahoma, Oregon, PA, Pennsylvania, RI, Rhode Island, SC, South Carolina, TN, TX, Tennessee, Texas, US, UT, United States, Utah, VA, Virginia, WA, WI, WV, WY, Washington, West Virginia, Wisconsin, Wyoming, deep learning, environment, inlandWaters, machine learning, modeling, streams, water resources, water temperature, Fewer tags

2. Catalog of natural and induced earthquakes without duplicates

The U. S. Geological Survey (USGS) makes long-term seismic hazard forecasts that are used in building codes. The hazard models usually consider only natural seismicity; non-tectonic (man-made) earthquakes are excluded because they are transitory or too small. In the past decade, however, thousands of earthquakes related to underground fluid injection have occurred in the central and eastern U.S. (CEUS), and some have caused damage. In response, the USGS is now also making short-term forecasts that account for the hazard from these induced earthquakes. A uniform earthquake catalog is assembled by combining and winnowing pre-existing source catalogs. Seismicity statistics are analyzed to develop recurrence models,...

Types: Citation; Tags: Alabama, Arizona, Arkansas, Colorado, Connecticut, All tags... Delaware, District of Columbia, Earthquake, Florida, Georgia, Hazard, Illinois, Indiana, Induced, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Natural, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, Seismic, South Carolina, South Dakota, Tennessee, Texas, USA, United States, Utah, Vermont, Virginia, West Virginia, Wisconsin, Wyoming, Fewer tags

National Fish Habitat Action Plan (NFHAP) 2010 HCI Scores and Human Disturbance Data (linked to NHDPLUSV1) for Desert Fish Habitat Partnership

This shapefile contains landscape factors representing human disturbances summarized to local and network catchments of river reaches for the Desert Fish Habitat Partnership. This dataset is the result of clipping the feature class 'NFHAP 2010 HCI Scores and Human Disturbance Data for the Conterminous United States linked to NHDPLUSV1.gdb' to the boundary of the Desert Fish Habitat Partnership. Landscape factors include land uses, population density, roads, dams, mines, and point-source pollution sites. The source datasets that were compiled and attributed to catchments were identified as being: (1) meaningful for assessing fish habitat; (2) consistent across the entire study area in the way that they were assembled;...

Categories: Data; Types: ArcGIS REST Map Service, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anthropogenic factors, Aquatic habitats, Atlantic Coast FHP, Catchment areas, Connecticut, All tags... DC, Delaware, Environmental conditions, Florida, Georgia, Habitat suitability, Inland water environments, Landscape ecology, Linked to the National Hydrography Dataset Plus (1:100,000), Maine, Maryland, Massachusetts, National Assessment Data, New Hampshire, New Jersey, New York, North Carolina, Pennsylvania, Rhode Island, River basins, Rivers, South Carolina, Spatial Data, Stream Characterization, Streams, Vermont, Virginia, Water quality measurement, West Virginia, Fewer tags

Lake Erie Ecological Investigations 1980-2000: Benthic Invertebrate Community Analysis

This Benthic Invertebrate Community Analysis dataset, a conceptual subgroup of the Lake Erie Ecological Investigations (LEEI) dataset, focuses on the benthic invertebrates sampled at Areas of Concern (AOCs) on Lake Erie. Per the Quality Assurance Project Plan (QAPP), the invertebrate samples were taken from sediments remaining from the sediment analysis. Identification of the invertebrates was completed by the same invertebrate taxonomist for both the 1998-2000 evaluation and 1986-87 historical evaluation (Smith et al. 1994) for increased consistency. Oligochaetes were identified to species if possible, chironomids were identified to genus, as adult specimens are needed for specific identification, and other taxa...

Categories: Data; Tags: AOCs, Ameiurus nebulosus, Ashtabula, Ashtabula River, Black River, All tags... Black River, Buffalo, Buffalo River, Cleveland Harbor, Cleveland Harbor, Cuyahoga River, Cuyahoga River, Detroit, Detroit River, Detroit River, Great Lakes, Great Lakes, Great Lakes, Great Lakes Areas of Concern, Huron River, Lake Erie, Lake Erie, Lake Erie, Lake or marine sediment, Love Canal (historical), Maumee River, Michigan, Michigan, Mud Brook, Mud Brook, New York, New York, Niagara River, Niagara River, Ohio, Ohio, Old River, Old Woman Creek, Old Woman Creek, Ottawa River, PAHs, PCBs, Pennsylvania, Pennsylvania, Presque Isle Bay, Presque Isle Bay, aquatic ecosystems, benthos, benthos, biomarkers, biota, brown bullhead, contamination and pollution, datasets, ecotoxicology, environment, field sampling, fish, fish, freshwater ecosystems, heavy metal pollution, histology, industrial pollution, inlandWaters, invertebrates, invertebrates, liver tumors, metal elements, pathology, pesticide and herbicide contamination, plant and animal testing, polyaromatic hydrocarbons, polychlorinated biphenyls, population and community ecology, remediation, sediment, sediment analysis, species diversity, specimen collecting, toxic trace element contamination, water resources, 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

Official Recognized Boundary of Eastern Brook Trout Joint Venture, 2013

This shapefile is the official boundary of the Eastern Brook Trout Joint Venture. The boundary was originally developed by the United States Fish and Wildlife Service and was updated in 2013 to reflect revisions from the Eastern Brook Trout Joint Venture, a recognized Fish Habitat Partnership (FHP) of the National Fish Habitat Partnership.

Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, GeoTIFF, Map Service, Raster; Tags: Analytical boundary, Aquatic habitats, Boundaries, EBTJV, FHP Boundary, All tags... FHP Product, Fish habitats, Maine, Massachusetts, New Hampshire, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Spatial Data, Vermont, Virginia, Visual, Fewer tags

Nitrogen, phosphorus, and suspended-sediment loads and trends measured at the Chesapeake Bay Nontidal Network stations: Water years 1985-2018 (ver. 2.0, May 2020)

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2018. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the NTN watersheds. To determine the trend in loads, the annual load results are flow normalized to integrate out the year-to-year variability in river discharge....

Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay Watershed, Delaware, Maryland, New York, Pennsylvania, All tags... USGS Science Data Catalog (SDC), United States, Virginia, WRTDS, Washington DC, West Virginia, load analysis, nitrogen, nutrients, phosphorus, rivers, suspended sediment, trends, water quality, weighted regression, Fewer tags