Scenarios_Grid
The U.S. Geological Survey has developed a method for estimating the mobility and potential alongshore transport of heavier-than-water sand and oil agglomerates (tarballs or surface residual balls, SRBs). During the Deepwater Horizon spill, some oil that reached the surf zone of the northern Gulf of Mexico mixed with suspended sediment and sank to form sub-tidal mats. If not removed, these mats can break apart to form SRBs and subsequently re-oil the beach. A method was developed for estimating SRB mobilization and alongshore movement. A representative suite of wave conditions was identified from buoy data for April, 2010, until August, 2012, and used to drive a numerical model of the spatially-variant alongshore currents. Potential mobilization of SRBs was estimated by comparing combined wave- and current-induced shear stress from the model to critical stress values for several sized SRBs. Potential alongshore flux of SRBs was also estimated to identify regions more or less likely to have SRBs deposited under each scenario. This methodology was developed to explain SRB movement and redistribution in the alongshore, interpret observed re-oiling events, and thus inform re-oiling mitigation efforts.
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 developed a method for estimating the mobility and potential alongshore transport of heavier-than-water sand and oil agglomerates (tarballs or surface residual balls, SRBs). During the Deepwater Horizon spill, some oil that reached the surf zone of the northern Gulf of Mexico mixed with suspended sediment and sank to form sub-tidal mats. If not removed, these mats can break apart to form SRBs and subsequently re-oil the beach. A method was developed for estimating SRB mobilization and alongshore movement. A representative suite of wave conditions was identified from buoy data for April, 2010, until August, 2012, and used to drive a numerical model of the spatially-variant alongshore currents. Potential mobilization of SRBs was estimated by comparing combined wave- and current-induced shear stress from the model to critical stress values for several sized SRBs. Potential alongshore flux of SRBs was also estimated to identify regions more or less likely to have SRBs deposited under each scenario. This methodology was developed to explain SRB movement and redistribution in the alongshore, interpret observed re-oiling events, and thus inform re-oiling mitigation efforts. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://pubs.usgs.gov/of/2012/1234/datafiles.html",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.a58eeb0f-4152-4f8f-9228-a511dde63382.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_a58eeb0f-4152-4f8f-9228-a511dde63382 |
| keyword |
[
"Alabama",
"Atlantic Ocean",
"CMGP",
"Choctawhatchee Bay",
"Coastal and Marine Geology Program",
"Delft3D",
"Florida",
"Fort Pickens",
"Gulf Shores",
"Gulf of Mexico",
"Little Lagoon",
"Mobile Bay",
"North America",
"Panama City",
"Pensacola Bay",
"SPCMSC",
"SRBs",
"Santa Rosa",
"St. Petersburg Coastal and Marine Science Center",
"U.S. Geological Survey",
"USGS",
"USGS:a58eeb0f-4152-4f8f-9228-a511dde63382",
"United States",
"WHCMSC",
"Woods Hole Coastal and Marine Science Center",
"alongshore currents",
"coastal processes",
"contaminant transport",
"current",
"environment",
"geoscientificInformation",
"industrial pollution",
"mathematical modeling",
"numerical modeling",
"ocean processes",
"oceans",
"oceans and coastal",
"oceans and estuaries",
"petroleum",
"petroleum spills",
"physical/chemical features",
"pollution",
"predictions",
"sediment mobility",
"surf zone",
"surface residual balls",
"tarballs",
"wave",
"wave-driven currents"
]
|
| modified | 2020-10-13T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -88.724419, 29.395074, -85.410772, 30.696090 |
| theme |
[
"Geospatial"
]
|
| title | Scenarios_Grid |
