{
    "tag": 14299,
    "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)",
    "pubdate": "2014",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P999PY84",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/other_datarelease\/DR_P999PY84\/MAB_mobile_freq_v1_1_meta.faq.html",
    "format": null,
    "email": null,
    "descript": "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.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Dalyander, P. Soupy",
            "role": "Author"
        },
        {
            "name": "Butman, Bradford",
            "role": "Author"
        },
        {
            "name": "Sherwood, Christopher R.",
            "role": "Author"
        },
        {
            "name": "Signell, Richard P.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "522",
            "name": "habitat alteration and disturbance",
            "scope": "Changes in the environments where plants and animals live.  Includes natural changes as well as results of human actions, deliberate or accidental."
        },
        {
            "thcode": 2,
            "code": "713",
            "name": "mathematical modeling",
            "scope": "Operational representation of a system in which the characteristics and behaviors of the component processes, phenomena, or objects, understood using mathematical relationships, are represented by numerical values (measured or hypothetical), so that calculations carried out using them return numerical estimates of system parameters that were not measured directly."
        },
        {
            "thcode": 2,
            "code": "816",
            "name": "ocean processes",
            "scope": "Recurrent natural changes that are physical, biological, or chemical, actively affecting the seas and oceans."
        },
        {
            "thcode": 2,
            "code": "1025",
            "name": "sea-floor characteristics",
            "scope": "Geomorphic features and geographic, compositional, and textural variation in the materials composing the ocean floor. Includes both large-scale structures (such as seamounts and rises) and fine-scale variations in rocks and deposits on the sea floor."
        },
        {
            "thcode": 2,
            "code": "1034",
            "name": "sediment transport",
            "scope": "Transport of solid particles of unconsolidated rock and mineral fragments, chemical precipitates, or biological materials."
        },
        {
            "thcode": 15,
            "code": "008",
            "name": "geoscientificInformation",
            "scope": "Information pertaining to earth sciences, for example geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth's rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, groundwater, erosion"
        },
        {
            "thcode": 15,
            "code": "014",
            "name": "oceans",
            "scope": "Features and characteristics of salt water bodies (excluding inland waters), for example tides, tidal waves, coastal information, reefs, maritime, outer continental shelf submerged lands, shoreline"
        },
        {
            "thcode": 23,
            "code": "5",
            "name": "Predictions",
            "scope": "Data expressing projections or models of future distributions, values, or impacts, including forecasts of anticipated changes brought about by natural and human processes, as well as scenario-testing models that compare outcomes of different management actions."
        },
        {
            "thcode": 23,
            "code": "23",
            "name": "Substrate",
            "scope": "Represents the character and composition of the surface and near surface of the sea floor in subtidal or intertidal areas, as defined in the Substrate Component of CMECS or in similar classification systems. Distributions are records of substrate characteristics based on visual or photographic inspection or on analysis of samples and cores, and they also include interpretive maps classifying areas on the basis of combinations of observations, hydrodynamic models, or geological models. Assessments include evaluations of present ecological or economic values of substrate distributions, drivers of substrate change, and functions of substrates. Predictions are the results of models or projections of future substrate distributions, values, or ecological impacts, including predicted substrate changes due to natural and human forces including erosion, accretion, sea-level change, extraction, trawling, or other factors; and they are the results of scenario-based models of substrate changes on ecological or economic values under different management strategies or other human alterations."
        },
        {
            "thcode": 61,
            "code": "63",
            "name": "alteration of benthic habitats",
            "scope": "includes physical and ecological alterations."
        },
        {
            "thcode": 61,
            "code": "527",
            "name": "numerical modeling",
            "scope": "modeling that uses numerical inputs for variables to simulate the behavior of a real-world system; use this term for finite element modeling and computer simulation."
        },
        {
            "thcode": 61,
            "code": "173",
            "name": "seabed",
            "scope": "the floor of a sea or ocean."
        },
        {
            "thcode": 61,
            "code": "316",
            "name": "sediment transport",
            "scope": "the movement of sediments from source to sink."
        },
        {
            "thcode": 62,
            "code": "GC-044",
            "name": "Continental\/Island Shelf",
            "scope": "Physiographic Setting: That part of the continental margin that is between the shoreline and the continental slope (or a depth or 200 meters when there is no noticeable continental slope); it is characterized by its very gentle slope of 0.1\u00b0. ..."
        },
        {
            "thcode": 62,
            "code": "AS-013",
            "name": "Marine Nearshore Subtidal",
            "scope": "Tidal Zone: The substrate is generally continuously submerged in this zone and includes those areas below MLLW."
        },
        {
            "thcode": 62,
            "code": "AS-016",
            "name": "Marine Offshore Subtidal",
            "scope": "Tidal Zone: The substrate is subtidal and continuously submerged in this zone and includes those areas below MLLW."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/cmgds.marine.usgs.gov\/data\/whcmsc\/data-release\/doi-P999PY84\/MiddleAtlanticBight\/data\/mobility_browse_mab_freq.jpg",
            "description": "Image displaying estimated recurrence interval of sediment mobility at select points in the Middle Atlantic Bight."
        }
    ],
    "fan": []
}