Filters: Tags: Chesapeake Bay (X) > partyWithName: U.S. Geological Survey (X)

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Promoting Change in Common Tern (Sterna hirundo) Nest Site Selection to Minimize Construction Related Disturbance These data describe the status of eggs in nests which had a foster egg added to them as part of an effort to relocate a common tern colony on Poplar Island. One data file (McGowanEtAl2018_FosterNestData_Data.csv) contains the data regarding the observations, while one definitions file (McGowanEtAl2018_FosterNestData_Definitions.csv) details the data. Categories: Data; Tags: Birds, Chesapeake Bay, Chesapeake Bay, Ecology, Species Biology, All tags... USGS Science Data Catalog (SDC), Wildlife Biology, Wildlife Biology, nesting behavior, Fewer tags Data describing the use of retention ponds on commercial poultry facilities on Delmarva by wild waterfowl These data support a paired USGS publication and document the use of retention ponds on commercial poultry farms by wild waterfowl. Categories: Data; Tags: Chesapeake Bay, USGS Science Data Catalog (SDC), Wildlife Disease, avian influenza, biota, All tags... domestic poultry, wild waterfowl, Fewer tags Poplar Island Digitizing In order to allow for a comparison across years we visually digitized landcover of Poplar Island from a single image per year at a 1:1000 spatial extent with a minimum mapping unit of 300 square meters (no minimum dimensions aside from area). Images used to assign landcover were provided by the U.S. Army Corps of Engineers and were captured between July and October of their respective years. All images were 1 foot resolution. Categories: Map; Tags: Chesapeake Bay, Chesapeake Bay, Digitizing, Ecology, Geographic Information Systems, All tags... Geospatial Datasets, Habitats, Information Sciences, Maps and Atlases, Poplar Island, USGS Science Data Catalog (SDC), mapping, Fewer tags Estimated Nitrogen, Phosphorus, and Sediment Load Reductions from Best Management Practices in the Chesapeake Bay Watershed between 1985 and 2020 To estimate changes in nitrogen, phosphorus, and sediment loads from technologies and management practices (TMPs), the Chesapeake Bay Program Partnership's CAST model was used to run scenarios with and without TMPs for years between 1985 and 2020 for the Chesapeake Bay watershed. Scenarios were run using the native model segmentation of land-river segments and downscaled to the National Hydrography Dataset (NHD) plus version 2 catchments. The land-river segment loads were disaggregated to the National Hydrography Dataset Plus, Version 2.0 using methods described in "CAST Data Input Disaggregation from County and Land-River Segment Scale to National Hydrography Dataset Plus". The estimated total nitrogen (TN), total... Tags: Best management practices (BMPs), Chesapeake Bay, Delaware, District of Columbia, Maryland, All tags... New York, Pennsylvania, Technologies and management practices (TMPs), USGS Science Data Catalog (SDC), Virginia, Water quality, West Virginia, environment, inlandWaters, Fewer tags Coastal wetlands of the Blackwater region, Chesapeake Bay, Maryland Note: The 2022 data release "Geospatial Characterization of Salt Marshes in Chesapeake Bay" incorporates the Blackwater region salt marsh dataset. (https://doi.org/10.5066/P997EJYB) This data release contains coastal wetland synthesis products for the geographic region of Blackwater, Chesapeake Bay, Maryland. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and others, are calculated for smaller units delineated from a digital elevation model, providing the spatial variability of physical factors that influence wetland health. The U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Blackwater National Wildlife Refuge, Chesapeake Bay, Dorchester County, Fishing Bay, Honga River, All tags... Maryland, Nanticoke River, United States, Wicomico County, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Water levels (November 11 2016 through November 11 2017) for four wells and Light intensity data (October 1 2015 through September 2019): from marsh to upland forest, for Moneystump Marsh, Blackwater National Wildlife Refuge, Maryland Water levels in meters from four wells in Moneystump marsh at Blackwater National Wildlife Refuge, MD. Two wells are located in the upland forest; one well is located in the marsh-forest transition zone (ecotone); and one well is located in the marsh. Water depth of the adjacent creek is reported in meters. Data covers the time span from November 11 2016 - November 11 2017. Pressure transducer data from the wells corrected to water level using barometric pressure loggers located in 3 locations throughout the experiment. Water levels are in units of meters referenced to vertical datum NAVD88. Raw pressure data is in units of kilopascals (kPa). Pressure transducer locations and elevation data from GNSS and digital... Categories: Data; Tags: Blackwater National Wildlife Refuge, Chesapeake Bay, Climatology, Coastal Wetlands, Coastal and Estuarine, All tags... Habitat Management, Hydrology, Land Use Change, Salt Marsh, Sea-level Change, Sea-level Rise, USGS Science Data Catalog (SDC), groundwater level, light intensity, utilities Communication, Fewer tags Elevation of marsh units in Blackwater salt marsh complex, Chesapeake Bay, Maryland Note: The 2022 data release "Geospatial Characterization of Salt Marshes in Chesapeake Bay" incorporates the Blackwater region salt marsh dataset. (https://doi.org/10.5066/P997EJYB) This data release contains coastal wetland synthesis products for the geographic region of Blackwater salt marsh complex, Chesapeake Bay, Maryland. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and others, are calculated for smaller units delineated from a digital elevation model, providing the spatial variability of physical factors that influence wetland health. The U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Blackwater National Wildlife Refuge, Chesapeake Bay, Dorchester County, Fishing Bay, Honga River, All tags... Maryland, Nanticoke River, United States, Wicomico County, coastal ecosystems, coastal processes, elevation, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Input and predictions from a suspended-sediment SPARROW model CBSS_V2 in the Chesapeake Bay watershed These data represent input and estimates from a medium-resolution (1:100,000 scale) NHDPlus SPAtially Referenced Regression on Watershed attributes (SPARROW) model for the Chesapeake Bay watershed (CBSS_v2). The model spatially correlates long-term mean annual suspended-sediment flux in 113 non-tidal streams to likely upland and stream-corridor sources, landscape factors affecting upland sediment transport and delivery to stream corridors, and fluvial and reservoir retention representing the early 2000 time period. The item COMID is a common related field between the data file and the spatial component (catchments) in NHDPlus version 1.0. Categories: Data; Tags: "Chesapeake Bay", "SPARROW Model", "Sediment Load", "Sediment Sources", "Sediment Yield", All tags... "Suspended Sediment", Chesapeake Bay, Geomorphology, USGS Science Data Catalog (SDC), Water Quality, Water Resources, transport, Fewer tags “ChesBay 24k – LU": Land Use/Land Cover Related Data Summaries for the Chesapeake Bay Watershed Within NHD Plus HR catchments These tabular data are summaries of land use/land cover related variables within catchments of the Chesapeake Bay watershed using the Xstrm methodology at 1:24,000 scale. Variables being counted as land use/land cover related contain all land use and land cover data including datasets that are split off or combined from those data (eg. agriculture or impervious classes only datasets). Outputs consist of tabular comma-separated values files (CSVs) for both the local catchment and network summaries linked to the National Hydrography Dataset Plus High-Resolution (NHDPlus HR) framework by NHDPlus ID. Local catchments are defined as the single catchment the data is summarized within. Network accumulation summaries were... Categories: Data; Tags: Agriculture, Aquatic Biology, Catchment, Catchments, Chesapeake, All tags... Chesapeake Bay, Chesapeake Bay Watershed, Delaware, District of Columbia, Ecology, Ecology, Forest, Geographic Information Systems, Geography, Geography, Hydrography, Hydrologic network, Hydrology, Hydrology, Impervious Surfaces, Land Use Change, Land Use Change, Land Use/ Land Cover, Lower Chesapeake Bay, Maryland, National Hydrography Dataset Plus, National Hydrography Datasets High Resolution, New York, Pennsylvania, Remote Sensing, Remote Sensing, Stream / River, USGS Science Data Catalog (SDC), United States, Upper Chesapeake Bay, Virginia, Water Resources, Water Resources, West Virginia, barren lands, cities, geospatial datasets, hydrographic datasets, hydrographic features, inlandWaters, 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 Data describing the effects of elastic leg-loop harnesses on adult and juvenile Common Terns These data describe the affects of elastic leg-loop harnesses on the reproductive success and behavior of adult Common Terns and the growth and behavior of juvenile Common Terns. These data support a USGS authored manuscript. Categories: Data; Tags: Chesapeake Bay, Common Tern, Ecology, Poplar Island, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, Wildlife Biology, behavior, biologging, biota, leg-loop harness, transmitter effects, Fewer tags Data regarding the efficacy of management practices for controlling gull use of Common Tern nesting colonies These data, which support a paired USGS publication, describe the efficacy of several management practices for reducing the presence of herring gulls in the nesting colonies of Common Terns. This data was collected on Poplar Island, located in the Chesapeake Bay portion of Maryland. Categories: Data; Tags: Chesapeake Bay, Common Tern, Herring Gull, USGS Science Data Catalog (SDC), Wildlife Biology, All tags... Wildlife Management, biota, Fewer tags Inputs and Selected Predictions of the CBTN_v5 and CBTP_v5 SPARROW Models for the Chesapeake Bay Watershed The CBTN_v5 and CBTP_v5 SPARROW models were developed to support inferences about causes of observed changes in nitrogen and phosphorus (respectively) fluxes in Chesapeake Bay tributaries between 1992 and 2012. Model inputs and outputs are included in three files, which are described below. Detailed documentation of the SPARROW modeling technique is available at https://pubs.er.usgs.gov/publication/tm6B3. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay, National Water Quality Program, USGS Science Data Catalog (SDC), nutrients Tracking disturbance and inundation to identify wetland loss Global trends in wetland degradation and loss have created an urgency to monitor wetland extent, as well as track the distribution and causes of wetland loss. Satellite imagery can be used to monitor wetlands over time, but few efforts have attempted to distinguish anthropogenic wetland loss from climate-driven variability in wetland extent. We present an approach to concurrently track land cover disturbance and inundation extent across the Mid-Atlantic region, United States, using the Landsat archive in Google Earth Engine. Disturbance was identified as a change in greenness, using a harmonic linear regression approach, or as a change in growing season brightness. Inundation extent was mapped using a modified version... Tags: Chesapeake Bay, Delaware, Delmarva Peninsula, Ecology, Hydrology, All tags... Land Use Change, Landsat, Maryland, Pennsylvania, Remote Sensing, USGS Science Data Catalog (SDC), Virginia, Washington, D.C., Water Resources, West Virginia, harmonic regression, permit, surface water, wetland fill, Fewer tags Tidal Datums, Tidal Range, and Nuisance Flooding Levels for Chesapeake Bay and Delaware Bay This U.S. Geological Survey data release provides data on spatial variations in tidal datums, tidal range, and nuisance flooding in Chesapeake Bay and Delaware Bay. Tidal datums are standard elevations that are defined based on average tidal water levels. Datums are used as references to measure local water levels and to delineate regions in coastal environments. Nuisance flooding refers to the sporadic inundation of low-lying coastal areas by the maximum tidal water levels during spring tides, especially perigean spring tides (also known as king tides). Nuisance flooding is independent of storm event flooding, and it represents a cumulative or chronic hazard. The data were obtained by following a consistent methodology... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Chesapeake Bay, Delaware Bay, Geography, United States of America, flooding, All tags... oceans, tides (oceanic), 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 “ChesBay 24k – HU": Human Related Data Summaries for the Chesapeake Bay Watershed Within NHD Plus HR catchments These tabular data are summaries of human related landscape variables within catchments of the Chesapeake Bay watershed using the Xstrm methodology at 1:24,000 scale. Variables being counted as human related include agriculture, barriers, road density and road/stream crossing data. Outputs consist of tabular comma-separated values files (CSVs) for both local catchment and network summaries linked to the National Hydrography Dataset Plus High-Resolution (NHDPlus HR) framework by NHDPlus ID. Local catchments are defined as the single catchment the data is summarized within. Network accumulation summaries were completed for each of the local catchments and their network connected upstream and/or downstream catchments.... Categories: Data; Tags: Agriculture, Aquatic Biology, Catchment, Catchments, Chesapeake, All tags... Chesapeake Bay, Chesapeake Bay Watershed, Dams, Delaware, Designing Sustainable Landscapes, District of Columbia, Ecology, Ecology, Environmental Health, Environmental Health, Fish Passage, Geographic Information Systems, Geography, Geography, Hydrography, Hydrologic network, Hydrology, Hydrology, Lower Chesapeake Bay, Maryland, National Hydrography Dataset Plus, National Hydrography Datasets High Resolution, New York, Pennsylvania, Roads, Soil Sciences, Soil Sciences, Stream / River, Stream-road crossing, TIGER roads, USGS Science Data Catalog (SDC), United States, Upper Chesapeake Bay, Virginia, Water Quality, Water Quality, Water Resources, Water Resources, West Virginia, geospatial datasets, hydrographic datasets, hydrographic features, inlandWaters, transportation features, Fewer tags Floodplain sedimentation, bank erosion, and biogeochemical cycling of sediment and nutrients in Smith Creek (Virginia) 2012-2015: U.S. Geological Survey data release This USGS Data Release represents tabular data for chemical and physical attributes, rates of deposition, erosion, and mineralization of bank and floodplain sediments and soils from five study sites in the Smith Creek watershed between 2012 and 2015. The data release was produced in compliance with the new 'open data' requirements as a way to make the scientific products associated with USGS research efforts and publications available to the public. The dataset consists of 2 separate items: 1. Smith Creek floodplain soils dataset (tabular data) 2. Smith Creek bank soils dataset (tabular data) These data support the following publication: Gillespie, J.L., Noe, G.B., Hupp, C.R., Gellis, A.C., and Schenk, E.R.,... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chesapeake Bay, Massanutten Mountain Ridge, Rockingham County, VA, Shenandoah County, VA, Shenandoah Valley, All tags... USGS Science Data Catalog (SDC), floodplain, karst, mineralization, nitrogen, phosphorus, sediment budget, Fewer tags Trends in 7-day-low streamflows at 174 USGS streamflow gages in the Chesapeake Bay watershed, Mid-Atlantic U.S. This data set contains U.S. Geological Survey (USGS) streamgage identification numbers, begin and end years of the periods of streamflow record tested, Sen slope trends in the annual minimum 7-day streamflow for the period of record tested, the p-values (significance) of the trends, and the trend Sen slopes standardized by the standard deviations of the residual errors defined as the difference between observations and the Sen slope lines, for 174 USGS streamgages with 56 to 75 years of record in the Chesapeake Bay watershed, Mid-Atlantic U.S. Categories: Data; Tags: Chesapeake Bay, Delaware, Maryland, New York, Pennsylvania, All tags... USGS Science Data Catalog (SDC), Virginia, Water Resources, West Virginia, streamflow, Fewer tags Shoreline delineations for 21 Subestuaries in the Chesapeake Bay 2010-2014 In many coastal regions throughout the world, there is increasing pressure to harden shorelines to protect human infrastructures against sea level rise, storm surge, and erosion. These data reflect the digitization of the shorelines of 21 sub-estuaries throughout the Chesapeake Bay (USA) as observed from 2010 through 2014. Shoreline segments are classified into one of seven shoreline types: bulkhead, riprap, developed, natural marsh, Phragmites-dominated marsh, sandy beach, and forest. These data were collected as part of a larger effort to understand the impacts of shoreline hardening on waterbird community integrity. Tags: Chesapeake Bay, Chesapeake Bay, Ecology, Geographic Information Systems, Habitat Management, All tags... USGS Science Data Catalog (SDC), geographic information systems, Fewer tags 1 2 3 »