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Location Folder Show Tree ROOT _ScienceBase Catalog __Woods Hole Coastal and Marine Science Center Coastal Wetlands Synthesis Products Environmental Geochemistry and Wetland Science National Shoreline Change Data Catalog U.S. Geological Survey Hydrodynamic Model Simulations Filters Date Range Past year (26) Past month (24) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (28) Types Downloadable (28) Map Service (28) OGC WFS Layer (28) OGC WMS Layer (28) Contacts Woods Hole Coastal and Marine Science Center Zafer Defne U.S. Geological Survey - ScienceBase Natural Hazards Neil Kamal Ganju More... Categories Data Release - In Progress (1) Tag Types Theme (28) Place (28) USGS Scientific Topic Keyword (25) Tag Schemes None (25) USGS Thesaurus (25) ISO 19115 Topic Category (26) Common geographic areas (2) CommonGeographicAreas (2) Marine Realms Information Bank (MRIB) keywords (3) USGS thesaurus (1) More... View Results as: JSON ATOM CSV Browse Folder

Historical shoreline positions for the coast of MA, from 1844 - 2014 The U.S. Geological Survey, in cooperation with the Massachusetts Office of Coastal Zone Management compiled Massachusetts vector shorelines into an updated dataset for the Office’s Shoreline Change Project. The Shoreline Change Project started in 1989 to identify erosion-prone areas of the Massachusetts coast by compiling a database of historical shoreline positions. Trends of shoreline position over long- and short-term timescales provide information to landowners, managers, and potential buyers about possible future changes to costal resources and infrastructure. This updated dataset strengthens the understanding of shoreline position change in Massachusetts. It includes U.S. Geological Survey vector shorelines... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Coast, Buzzard’s Bay, Cape Cod Bay, Coastal and Marine Geology Program, DSAS, All tags... Digital Shoreline Analysis System, MA CZM, MHW, Martha’s Vineyard, Massachusetts, Massachusetts Coastal Zone Management, Massachusetts Shoreline Change Project, Mean High Water, Nantucket, National Assessment of Shoreline Change Project, New England, North Shore, Outer Cape, Shoreline, Shoreline Change, South Cape, South Shore, U.S. Geological Survey, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, coastal processes, environment, geoscientificInformation, geospatial datasets, oceans, Fewer tags Unvegetated to vegetated marsh ratio in Fire Island National Seashore and Central Great South Bay salt marsh complex, New York Unvegetated to vegetated marsh ratio (UVVR) in the Fire Island National Seashore and Central Great South Bay salt marsh complex, is computed based on conceptual marsh units defined by Defne and Ganju (2018). UVVR was calculated based on U.S. Department of Agriculture National Agriculture Imagery Program (NAIP) 1-meter resolution imagery. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands, including the Fire Island National Seashore and Central Great South Bay salt marshes, with the intent of providing Federal, State, and local managers with tools to estimate... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Bellport Bay, Ecology, Fire Island National Seashore, Geography, All tags... Geomorphology, Great South Bay, Information Sciences, LTER, Long-Term Ecological Research, Marine Geology, Narrow Bay, New York, Nicoll Bay, Patchogue Bay, Remote Sensing, Robert Moses State Park, Suffolk County, UVVR, United States, Water Island, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Sediment Texture and Geomorphology of the Sea Floor from Fenwick Island, Maryland to Fisherman's Island, Virginia These data are a qualitatively derived interpretive polygon shapefile defining surficial sediment type and distribution, and geomorphology, for nearly 1,400 square kilometers of sea floor on the inner-continental shelf from Fenwick Island, Maryland to Fisherman’s Island, Virginia, USA. These data are classified according to Barnhardt and others (1998) bottom-type classification system, which was modified to highlight changes in secondary sediment-types such as mud and gravel across this primarily sandy shelf. Most of the geophysical and sample data used to create this interpretive layer were collected as part of the Linking Coastal Processes and Vulnerability: Assateague Island Regional Study project (GS2-2C), supported... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Assateague Island, Assateague Island National Seashore, Assawoman Island, Atlantic Ocean, Backscatter, All tags... Bathymetry, Bottom Photographs, Bottom Type, Cape Henlopen, Cedar Island, Chincoteague Inlet, Chincoteague Island, Chincoteague National Wildlife Refuge, Cobb Island, Delaware, Delmarva Peninsula, Delmarva Peninsula, Fenwick Island, Fisherman's Island, Hog Island, Interpretation, Marine Geology, Maryland, Metompkin Island, Mid-Atlantic Bight, Mink Island, Mockhorn Island, Myrtle Island, Ocean City, Parramore Island, Rehoboth, Sea floor, Sediment Cover, Sediment Distribution, Sediment Samples, Sediment Texture, Ship Shoal Island, Sidescan Sonar, Slope, Smith Island, Virginia, Wallops Island, Wreck Island, carbonate, geomorphology, interpretation, marine geology, marine geophysics, sea-floor characteristics, sediment texture, Fewer tags Wave thrust values at point locations along the shorelines of Massachusetts and Rhode Island This product provides spatial variations in wave thrust along shorelines in Massachusetts and Rhode Island. Natural features of relevance along the State coast are salt marshes. In recent times, marshes have been eroding primarily through lateral erosion. Wave thrust represents a metric of wave attack acting on marsh edges. The wave thrust is calculated as the vertical integral of the dynamic pressure of waves. This product uses a consistent methodology with sufficient spatial resolution to include the distinct features of each marsh system. Waves under different climatological wind forcing conditions were simulated using the coupled ADCIRC/SWAN model system. The estuarine and bay areas are resolved with horizontal... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Coastal Wetlands, Coastal processes, Geomorphology, Massachusetts, Mathematical modeling, All tags... Ocean waves, Rhode Island, Salt marsh, Shoreline, United States of America, Vulnerability, Wave attack, Wave thrust, biota, wetland ecosystems, Fewer tags Unvegetated to vegetated marsh ratio in Cape Cod National Seashore salt marsh complex, Massachusetts Note: The 2021 data release "Geospatial characterization of salt marshes for Massachusetts" is a more recent and comprehensive MA salt marsh dataset. (https://doi.org/10.5066/P97E086F) Unvegetated to vegetated marsh ratio (UVVR) in the Cape Cod National Seashore (CACO) salt marsh complex and approximal wetlands is computed based on conceptual marsh units defined by Defne and Ganju (2019). UVVR was calculated based on U.S. Department of Agriculture National Agriculture Imagery Program (NAIP) 1-meter resolution imagery. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Barnstable County, Cape Cod Bay, Cape Cod National Seashore, Ecology, All tags... Geography, Herring Cove, LTER, Little Pleasant Bay, Long-Term Ecological Research, Massachusetts, Outer Cape, Remote Sensing, UVVR, United States, Wellfleet Harbor, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Conceptual marsh units for Cape Cod National Seashore salt marsh complex, Massachusetts Note: The 2021 data release "Geospatial characterization of salt marshes for Massachusetts" is a more recent and comprehensive MA salt marsh dataset. (https://doi.org/10.5066/P97E086F) The salt marsh complex of Cape Cod National Seashore (CACO), Massachusetts, USA and approximal wetlands were delineated to smaller, conceptual marsh units by geoprocessing of surface elevation data. Flow accumulation based on the relative elevation of each location is used to determine the ridge lines that separate each marsh unit while the surface slope is used to automatically assign each unit a drainage point, where water is expected to drain through. Through scientific efforts initiated with the Hurricane Sandy Science Plan,... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Barnstable County, Cape Cod Bay, Cape Cod National Seashore, Ecology, All tags... Geography, Herring Cove, LTER, Little Pleasant Bay, Long-Term Ecological Research, Massachusetts, Outer Cape, Remote Sensing, United States, Wellfleet Harbor, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, 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 Elevation of marsh units in Cape Cod National Seashore salt marsh complex, Massachusetts Note: The 2021 data release "Geospatial characterization of salt marshes for Massachusetts" is a more recent and comprehensive MA salt marsh dataset. (https://doi.org/10.5066/P97E086F) Elevation distribution in the Cape Cod National Seashore (CACO) salt marsh complex and approximal wetlands is given in terms of mean elevation of conceptual marsh units defined by Defne and Ganju (2019). The elevation data is based on the 1-meter resolution Coastal National Elevation Database (CoNED), where data gaps exist. Through scientific efforts initiated with the Hurricane Sandy Science Plan, 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: Atlantic Ocean, Barnstable County, Cape Cod Bay, Cape Cod National Seashore, Ecology, All tags... Geography, Herring Cove, LTER, Little Pleasant Bay, Long-Term Ecological Research, Massachusetts, Outer Cape, Remote Sensing, United States, Wellfleet Harbor, coastal ecosystems, coastal processes, elevation, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Conceptual marsh units for Assateague Island National Seashore and Chincoteague Bay, Maryland and Virginia The salt marsh complex of Assateague Island National Seashore (ASIS) and Chincoteague Bay was delineated to smaller, conceptual marsh units by geoprocessing of surface elevation data. Flow accumulation based on the relative elevation of each location is used to determine the ridge lines that separate each marsh unit while the surface slope is used to automatically assign each unit a drainage point, where water is expected to drain through. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands, including the Assateague Island National Seashore and Chincoteague... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Accomack County, Assateague Island National Seashore, Assateague State Park, Atlantic Ocean, Chincoteague Bay, All tags... Chincoteague Island, E.A. Vaughn Wildlife Management Area, Ecology, LTER, Long-Term Ecological Research, Marine Geology, Maryland, United States, Virginia, Wallops Island, Worcester County, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Mean tidal range in marsh units of Assateague Island National Seashore and Chincoteague Bay, Maryland and Virginia Biomass production is positively correlated with mean tidal range in salt marshes along the Atlantic coast of the United States of America. Recent studies support the idea that enhanced stability of the marshes can be attributed to increased vegetative growth due to increased tidal range. This dataset displays the spatial variation of mean tidal range (i.e. Mean Range of Tides, MN) in the Assateague Island National Seashore and Chincoteague Bay based on conceptual marsh units defined by Defne and Ganju (2018). MN was based on the calculated difference in height between mean high water (MHW) and mean low water (MLW) using the VDatum (v3.5) database ( http://vdatum.noaa.gov/ ). Through scientific efforts initiated... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Accomack County, Assateague Island National Seashore, Assateague State Park, Atlantic Ocean, Chincoteague Bay, All tags... Chincoteague Island, E.A. Vaughn Wildlife Management Area, Ecology, Geomorphology, Hydrogeology, LTER, Long-Term Ecological Research, Marine Geology, Maryland, United States, Virginia, Wallops Island, Worcester County, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, tidal range, tides (oceanic), vegetation, wetland ecosystems, wetland functions, Fewer tags Elevation of marsh units in Assateague Island National Seashore and Chincoteague Bay, Maryland and Virginia Elevation distribution in the Assateague Island National Seashore (ASIS) salt marsh complex and Chincoteague Bay is given in terms of mean elevation of conceptual marsh units defined by Defne and Ganju (2018). The elevation data is based on the 1-meter resolution Coastal National Elevation Database (CoNED). Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands, including the Assateague Island National Seashore and Chincoteague Bay salt marshes, with the intent of providing Federal, State, and local managers with tools to estimate the vulnerability and ecosystem... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Accomack County, Assateague Island National Seashore, Assateague State Park, Atlantic Ocean, Chincoteague Bay, All tags... Chincoteague Island, E.A. Vaughn Wildlife Management Area, Ecology, Information Sciences, LTER, Long-Term Ecological Research, Marine Geology, Maryland, Remote Sensing, United States, Virginia, Wallops Island, Worcester County, coastal ecosystems, coastal processes, elevation, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Conceptual marsh units for Fire Island National Seashore and central Great South Bay salt marsh complex, New York The salt marsh complex of Fire Island National Seashore (FIIS) and central Great South Bay was delineated to smaller, conceptual marsh units by geoprocessing of surface elevation data. Flow accumulation based on the relative elevation of each location is used to determine the ridge lines that separate each marsh unit while the surface slope is used to automatically assign each unit a drainage point, where water is expected to drain through. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands, including the Fire Island National Seashore and central Great South... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Bellport Bay, Ecology, Fire Island National Seashore, Geography, All tags... Geomorphology, Great South Bay, Information Sciences, LTER, Long-Term Ecological Research, Marine Geology, Narrow Bay, New York, Nicoll Bay, Patchogue Bay, Remote Sensing, Robert Moses State Park, Suffolk County, United States, Water Island, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Mean tidal range in marsh units of Fire Island National Seashore and Central Great South Bay salt marsh complex, New York Biomass production is positively correlated with mean tidal range in salt marshes along the Atlantic coast of the United States of America. Recent studies support the idea that enhanced stability of the marshes can be attributed to increased vegetative growth due to increased tidal range. This dataset displays the spatial variation of mean tidal range (i.e. Mean Range of Tides, MN) in the Fire Island National Seashore and Central Great South Bay salt marsh complex, based on conceptual marsh units defined by Defne and Ganju (2018). MN was based on the calculated difference in height between mean high water (MHW) and mean low water (MLW) using the VDatum (v3.5) database ( http://vdatum.noaa.gov/ ). Through scientific... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Bellport Bay, Ecology, Fire Island National Seashore, Geography, All tags... Geomorphology, Great South Bay, Information Sciences, LTER, Long-Term Ecological Research, Marine Geology, Narrow Bay, New York, Nicoll Bay, Patchogue Bay, Remote Sensing, Robert Moses State Park, Suffolk County, United States, Water Island, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, tidal range, tides (oceanic), vegetation, wetland ecosystems, wetland functions, Fewer tags Wave thrust values at point locations along the shorelines of Chesapeake Bay, Maryland and Virginia This product provides spatial variations in wave thrust along shorelines in the Chesapeake Bay. Natural features of relevance along the Bay coast are salt marshes. In recent times, marshes have been eroding primarily through lateral erosion. Wave thrust represents a metric of wave attack acting on marsh edges. The wave thrust is calculated as the vertical integral of the dynamic pressure of waves. This product uses a consistent methodology with sufficient spatial resolution to include the distinct features of each marsh system. Waves under different climatological wind forcing conditions were simulated using the coupled ADCIRC/SWAN model system. The estuarine and bay areas are resolved with horizontal resolutions... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Chesapeake Bay, Conowingo Dam on Susquehanna River, Marine Geology, Maryland, Salt marsh, All tags... Shoreline, Summit Bridge on Chesapeake-Delaware Canal, United States of America, Virginia, Vulnerability, Wave attack, Wave thrust, biota, coastal processes, mathematical modeling, ocean waves, wetland ecosystems, wetland functions, Fewer tags Marsh shorelines of the Massachusetts coast from 2013-14 topographic lidar data The Massachusetts Office of Coastal Zone Management (CZM) launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the Massachusetts coast. Seventy-six maps were produced in 1997 depicting a statistical analysis of shoreline change on ocean-facing shorelines from the mid-1800s to 1978 using multiple data sources. In 2001, a 1994 shoreline was added. More recently, in cooperation with CZM, the U.S. Geological Survey (USGS) delineated a new shoreline for Massachusetts using color aerial ortho-imagery from 2008 to 2009 and topographic lidar data collected in 2007. This update included a marsh shoreline, which was defined to be the tonal difference between low- and high-marsh seen in ortho-photos.... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bourne, CMGP, Chatham, Coastal and Marine Geology Program, Duxbury, All tags... Essex, Fairhaven, Ipswich, Kingston, LIDAR, Land Use Change, Little Bay, MA, Marine Geology, Marion, Marsh Platform, Marshfield, Massachusetts, Mattapoisett, NOAA, National Assessment of Shoreline Change Project, National Oceanic and Atmospheric Administration, Pleasant Bay, Plum Island, Plymouth, Pocasset, Quincy, Rock Island Cove, Sandwich, Shoreline, Squantum, Structural Geology, U.S. Geological Survey, USGS, WHCMSC, Wareham, Wellfleet, Woods Hole Coastal and Marine Science Center, coastal processes, coastal submergence, elevation, environment, geomorphology, geoscientificInformation, marsh, marsh edge, marsh shoreline, oceans, shore, topography, Fewer tags Lifespan of marsh units in New York salt marshes Lifespan of salt marshes in New York are calculated using conceptual marsh units defined by Defne and Ganju (2018) and Welk and others (2019, 2020a, 2020b, 2020c). The lifespan calculation is based on estimated sediment supply and sea-level rise (SLR) predictions after Ganju and others (2020). Sea level predictions are local estimates which correspond to the 0.3, 0.5, and 1.0 meter increase in Global Mean Sea Level (GMSL) scenarios by 2100 from Sweet and others (2022). The U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing Federal, State, and local managers with tools to estimate the vulnerability and ecosystem... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic, Long Island Sound, New York, United States, coastal ecosystems, All tags... coastal processes, elevation, environment, estuarine processes, estuary, geospatial datasets, inlandWaters, lifespan, marsh health, none, oceans, salt marsh, sea-level change, sediment transport, vegetation, wetland ecosystems, wetland functions, Fewer tags Lifespan of Chesapeake Bay salt marsh units Lifespan distribution in the Chesapeake Bay (CB) salt marsh complex is presented in terms of lifespan of conceptual marsh units defined by Ackerman and others (2022). The lifespan calculation is based on estimated sediment supply and sea-level rise (SLR) predictions after Ganju and others (2020). Sea level predictions are present day estimates at the prescribed rate of SLR, which correspond to the 0.3, 0.5, and 1.0 meter increase in Global Mean Sea Level (GMSL) scenarios by 2100 from Sweet and others (2022). Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands,... Categories: Data, Data Release - In Progress; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Chesapeake Bay, LTER, Long-Term Ecological Research, Maryland, All tags... United States, Virginia, coastal ecosystems, coastal processes, elevation, environment, estuarine processes, estuary, geospatial datasets, inlandWaters, lifespan, marsh health, oceans, salt marsh, sea-level change, sediment transport, vegetation, wetland ecosystems, wetland functions, Fewer tags Unvegetated to vegetated marsh ratio in Assateague Island National Seashore and Chincoteague Bay, Maryland and Virginia Unvegetated to vegetated marsh ratio (UVVR) in the Assateague Island National Seashore and Chincoteague Bay is computed based on conceptual marsh units defined by Defne and Ganju (2018). UVVR was calculated based on U.S. Department of Agriculture National Agriculture Imagery Program (NAIP) 1-meter resolution imagery. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands, including the Assateague Island National Seashore and Chincoteague Bay salt marshes, with the intent of providing Federal, State, and local managers with tools to estimate the vulnerability and... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Accomack County, Assateague Island National Seashore, Assateague State Park, Atlantic Ocean, Chincoteague Bay, All tags... Chincoteague Island, E.A. Vaughn Wildlife Management Area, Ecology, Environmental Health, Geomorphology, Hydrogeology, Information Sciences, LTER, Long-Term Ecological Research, Marine Geology, Maryland, Remote Sensing, UVVR, United States, Virginia, Wallops Island, Worcester County, coastal ecosystems, coastal processes, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Elevation of marsh units in Fire Island National Seashore and Central Great South Bay salt marsh complex, New York Elevation distribution in the Fire Island National Seashore and Central Great South Bay salt marsh complex is given in terms of mean elevation of conceptual marsh units defined by Defne and Ganju (2018). The elevation data is based on the 1-meter resolution Coastal National Elevation Database (CoNED). Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands, including the Fire Island National Seashore and Central Great South Bay salt marshes, with the intent of providing Federal, State, and local managers with tools to estimate the vulnerability and ecosystem service... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Bellport Bay, Ecology, Fire Island National Seashore, Geography, All tags... Geomorphology, Great South Bay, Information Sciences, LTER, Long-Term Ecological Research, Marine Geology, Narrow Bay, New York, Nicoll Bay, Patchogue Bay, Remote Sensing, Robert Moses State Park, Suffolk County, United States, Water Island, coastal ecosystems, coastal processes, elevation, environment, estuary, geospatial datasets, inlandWaters, marsh health, oceans, salt marsh, vegetation, wetland ecosystems, wetland functions, Fewer tags Lifespan of marsh units in Assateague Island National Seashore and Chincoteague Bay, Maryland and Virginia The sediment-based lifespan of salt marsh units in Assateague Island National Seashore (ASIS) and Chincoteague Bay is shown for conceptual marsh units defined by Defne and Ganju (2018). The lifespan represents the timescale by which the current sediment mass within a marsh parcel can no longer compensate for sediment export and deficits induced by sea-level rise. The lifespan calculation is based on vegetated cover, marsh elevation, sediment supply, and sea-level rise (SLR) predictions after Ganju and others (2020). Sea level rise scenarios are present day estimates corresponding to the 0.3, 0.5, and 1.0 meter increase in Global Mean Sea Level (GMSL) by 2100 from Sweet and others (2017). Through scientific efforts... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Accomack County, Assateague Island National Seashore, Assateague State Park, Atlantic Ocean, Chincoteague Bay, All tags... Chincoteague Island, E.A. Vaughn Wildlife Management Area, Environmental Health, LTER, Long-Term Ecological Research, Maryland, United States, Virginia, Wallops Island, Worcester County, coastal ecosystems, coastal processes, elevation, environment, estuarine sediment transport, estuary, geospatial datasets, inlandWaters, lifespan, marsh health, oceans, salt marsh, sea level rise, vegetation, wetland ecosystems, wetland functions, Fewer tags 1 2 »