{
    "tag": 6394,
    "title": "Distribution of particle size in suspension at various depths from San Pablo Bay and Grizzly Bay, California, 2020",
    "pubdate": "20210915",
    "sername": null,
    "series_name": null,
    "issue": "doi:10.5066\/P9N88U5G",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P9N88U5G\/ERO20_Suspended_particle_profiles_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "These data present suspended particle size distributions collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center within two embayments of San Francisco Bay. Data were collected at one site in San Pablo Bay and one site in Grizzly Bay from January through February 2020 by deploying a Sequoia Scientific Laser In-situ Scattering and Transmissometry instrument (LISST 200x) from a small vessel near pre-established USGS instrument moorings. At both sites, data were collected on four dates at three depths, generally near the water surface, at mid depth, and near the sediment bed, for 1-3 minutes at each depth. LISST volume concentrations are most accurate when the optical percent transmission is above 30; when this is true, light passing through the sample volume is unlikely to be scattered by more than one particle. These files contain all samples collected; judgment should be applied when using them. Users are advised to check metadata and instrument information carefully for applicable time periods of specific data.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Allen, Rachel M.",
            "role": "Author"
        },
        {
            "name": "McGill, Samantha C.",
            "role": "Author"
        },
        {
            "name": "Lacy, Jessica R.",
            "role": "Author"
        },
        {
            "name": "Ferreira, Joanne C. T.",
            "role": "Author"
        },
        {
            "name": "Winklerprins, Lukas T.",
            "role": "Author"
        },
        {
            "name": "Tan, Angela C.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "708",
            "name": "marine water quality",
            "scope": "Observed intrinsic characteristics of marine waters affecting their ability to support life or facilitate biological processes such as waste decomposition."
        },
        {
            "thcode": 2,
            "code": "1129",
            "name": "suspended material (water)",
            "scope": "Sediment or organic material carried in suspension in the water column, in contrast to material that moves on or near the bottom. May be measured directly by sampling, or indirectly by acoustic or optical backscatter or transmission."
        },
        {
            "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": "25",
            "name": "Water-Quality Parameters",
            "scope": "Includes measures of the ranges and distributions of the chemical, physical, and biological constituents of waters, including temperature, salinity, pH, dissolved oxygen, turbidity, total suspended solids, chlorophyll, nutrients, bacteria, and toxicants. Distributions are recorded observations as a function of time and place, including measures of one or more parameters; maps that use observations and consider hydrodynamic factors to estimate present distributions or ranges; or categorizations of areas using classification systems such as CMECS to identify ranges. Assessments evaluate the current ecological, human health, or economic effects, values, or harms linked to water-quality parameters as well as evaluating effects on ecosystems, biotic distributions, and ecological processes. In the case of temperature, this includes ecological, industrial, and human service values but does not include values related to energy production, which are covered in the Energy Resources category. Predictions are the results of models or projections of future distributions, values, and human health or ecological impacts of water-quality parameters; Predictions include predicted effects due to changes in climate, industrial or residential needs, land use, or other natural and human forces and include scenario-based models of the impacts of changes to parameters on ecological, human health, or economic values under different management strategies or other human alterations."
        },
        {
            "thcode": 61,
            "code": "719",
            "name": "marine geology",
            "scope": "used for geological and related studies of ocean basins and margins."
        },
        {
            "thcode": 61,
            "code": "220",
            "name": "sediment",
            "scope": "unconsolidated weathering products that have been eroded, transported, and deposited in another location."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/60a45570d34ea221ce45ed30?name=ERO20_study_area.jpg&allowOpen=true",
            "description": "Digital elevation model (DEM) of study area showing locations of USGS moorings in San Pablo Bay (PBM) and Grizzly Bay (GBM)."
        }
    ],
    "fan": [
        "2020-603-FA"
    ]
}