{
    "tag": 18955,
    "title": "Simulated coastal fine-grained sediment plumes from beach nourishment near Santa Barbara, California",
    "pubdate": "20250423",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P17SJQM3",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/CMGDS_DR_tool\/DR_P17SJQM3\/sb_plume_model_input_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "A coupled coastal hydrodynamic and sediment transport model application was constructed using the Delft3D (version 4.04.01) modeling system to simulate dispersal of fine-grained sediment plumes from beach nourishment projects along the coast of Santa Barbara, California. The model consisted of a three-dimensional Delft3D flow model that was 2-way coupled to the spectral wave model, SWAN, computed on a structured curvilinear grid with a spatial resolution that varied between 20 m in the nearshore area near the project site to about 180 m at the seaward extent of the model domain. Dispersal of fine-grained sediment plumes was simulated for two types of nourishment projects including drag and haul (DH) and hydraulic dredging (HD) that are periodically performed to increase the supply of sediment to beaches in the study area. The modeling approach utilized two types of simulations including a series of relatively short (3-day) sensitivity tests to examine variability in plume direction and extent under variations in wind direction, wave height, and sediment settling velocities as well as longer (3 month) hindcasts to simulate sediment dynamics associated with typical nourishment projects using realistic wave and wind conditions. Model input files for both drag and haul (DH) and hydraulic dredging (HD) projects are provided in .zip archives for both sensitivity and hindcast simulations.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Stevens, Andrew W.",
            "role": "Author"
        },
        {
            "name": "Warrick, Jonathan A.",
            "role": "Author"
        },
        {
            "name": "Tehranirad, Babak",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "715",
            "name": "mathematical simulation",
            "scope": "A computer algorithm or model, which was created to represent a simplified version of a real world situation."
        },
        {
            "thcode": 2,
            "code": "822",
            "name": "ocean waves",
            "scope": "A periodic movement of seawater caused by wind, tide, and currents."
        },
        {
            "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": 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": 61,
            "code": "14",
            "name": "coastal processes",
            "scope": "oceanographic and geologic processes that cause changes to the shoreline and coastal zone."
        },
        {
            "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": "28",
            "name": "waves",
            "scope": "used for waves acting as agents of erosion and sediment transport in coastal and nearshore environments."
        }
    ],
    "place_term": [],
    "image": [],
    "fan": []
}