Recurrence interval of sediment mobility at select points in the Middle Atlantic Bight for May, 2010 - May, 2011 (MAB_mobile_freq_v1_1.SHP, Geographic, WGS 84)
The U.S. Geological Survey has been characterizing the regional variation in shear stress on the sea floor and sediment mobility through statistical descriptors. The purpose of this project is to identify patterns in stress in order to inform habitat delineation or decisions for anthropogenic use of the continental shelf. The statistical characterization spans the continental shelf from the coast to approximately 120 m water depth, at approximately 5 km resolution. Time-series of wave and circulation are created using numerical models, and near-bottom output of steady and oscillatory velocities and an estimate of bottom roughness are used to calculate a time-series of bottom shear stress at 1-hour intervals. Statistical descriptions such as the median and 95th percentile, which are the output included with this database, are then calculated to create a two-dimensional picture of the regional patterns in shear stress. In addition, time-series of stress are compared to critical stress values at select points calculated from observed surface sediment texture data to determine estimates of sea floor mobility.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "P. Soupy Dalyander",
"@type": "vcard:Contact",
"hasEmail": "mailto:sdalyander@usgs.gov"
}
|
| description | The U.S. Geological Survey has been characterizing the regional variation in shear stress on the sea floor and sediment mobility through statistical descriptors. The purpose of this project is to identify patterns in stress in order to inform habitat delineation or decisions for anthropogenic use of the continental shelf. The statistical characterization spans the continental shelf from the coast to approximately 120 m water depth, at approximately 5 km resolution. Time-series of wave and circulation are created using numerical models, and near-bottom output of steady and oscillatory velocities and an estimate of bottom roughness are used to calculate a time-series of bottom shear stress at 1-hour intervals. Statistical descriptions such as the median and 95th percentile, which are the output included with this database, are then calculated to create a two-dimensional picture of the regional patterns in shear stress. In addition, time-series of stress are compared to critical stress values at select points calculated from observed surface sediment texture data to determine estimates of sea floor mobility. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
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"accessURL": "https://doi.org/10.5066/P999PY84",
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"@type": "dcat:Distribution",
"title": "Original Metadata",
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|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_99bea302-7594-479e-8ab8-5b82456d4dc3 |
| keyword |
[
"Atlantic Ocean",
"CMGP",
"CMHRP",
"CMSP",
"Chesapeake Bay",
"Coastal and Marine Geology Program",
"Coastal and Marine Hazards and Resources Program",
"Coastal and marine spatial planning",
"Continental/Island Shelf",
"Delaware Bay",
"Grant-Madsen",
"Hudson Shelf Valley",
"Long Island",
"Long Island Sound",
"Marine Nearshore Subtidal",
"Marine Offshore Subtidal",
"Middle Atlantic Bight",
"Nantucket Shoals",
"New York Bight",
"North America",
"Pamlico Sound",
"ROMS",
"Rhode Island Sound",
"SWAN",
"Substrate",
"U.S. East Coast",
"U.S. Geological Survey",
"USGS",
"USGS:99bea302-7594-479e-8ab8-5b82456d4dc3",
"United States",
"Virginian Ecoregion",
"WHCMSC",
"Woods Hole Coastal and Marine Science Center",
"alteration of benthic habitats",
"bottom shear stress",
"current",
"geoscientificInformation",
"habitat alteration and disturbance",
"mathematical modeling",
"numerical modeling",
"ocean processes",
"oceans",
"predictions",
"recurrence interval",
"sea floor",
"sea floor habitat",
"sea-floor characteristics",
"seabed",
"seafloor",
"sediment mobility",
"sediment transport",
"substrate",
"wave"
]
|
| modified | 2021-11-19T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -76.626671, 34.173328, -68.388000, 41.558331 |
| theme |
[
"Geospatial"
]
|
| title | Recurrence interval of sediment mobility at select points in the Middle Atlantic Bight for May, 2010 - May, 2011 (MAB_mobile_freq_v1_1.SHP, Geographic, WGS 84) |
