{
    "tag": 15430,
    "title": "Sound velocity vs. depth plots and CTD cast data collected in April 2021 offshore Santa Cruz, California during USGS field activity 2021-619-FA",
    "pubdate": "20220920",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P9EHITBI",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/CMGDS_DR_tool\/DR_P9EHITBI\/2021-619-FA_RVPS_SoundVelCTD_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "Sound velocity and CTD (conductivity, temperature, depth) cast data were collected at 9 sites offshore Santa Cruz, CA during USGS field activity 2021-619-FA in April of 2021. Aboard the R\/V Parke Snavely (RVPS), a SonTek CastAway-CTD was used to collect these data at in the upper 67 meters of the water column. these data is provided in csv format, a shapefile of cast locations, as well as PNG plots of the speed of sound as a function of depth for each cast location.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Balster-Gee, Alicia F.",
            "role": "Author"
        },
        {
            "name": "Baldwin, Wayne E.",
            "role": "Author"
        },
        {
            "name": "Hart, Patrick E.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "474",
            "name": "geospatial datasets",
            "scope": "Collections of related digital information that are geographically referenced."
        },
        {
            "thcode": 2,
            "code": "703",
            "name": "marine chemistry",
            "scope": "Branch of chemistry that deals with the properties, composition, structure, and interaction of substances in the seas and oceans."
        },
        {
            "thcode": 2,
            "code": "707",
            "name": "marine geophysics",
            "scope": "Branch of earth sciences concerned with the physical processes of the oceans and continental margins.  We include here studies of large bodies of brackish and fresh water, such as lakes and rivers."
        },
        {
            "thcode": 2,
            "code": "2078",
            "name": "navigational data",
            "scope": "Geospatial data indicating the locations of instruments, vessels, aircraft, or other vehicles used to collect scientific observations.  These data include horizontal coordinates in sequence, and may include time or vertical position."
        },
        {
            "thcode": 2,
            "code": "2078",
            "name": "navigational data",
            "scope": "Geospatial data indicating the locations of instruments, vessels, aircraft, or other vehicles used to collect scientific observations.  These data include horizontal coordinates in sequence, and may include time or vertical position."
        },
        {
            "thcode": 2,
            "code": "817",
            "name": "ocean salinity",
            "scope": "Measure of the percentage of dissolved salts in seawater."
        },
        {
            "thcode": 2,
            "code": "818",
            "name": "ocean sciences",
            "scope": "Sciences involved in the study of geological, biological, chemical, and physical characteristics and processes of the oceans."
        },
        {
            "thcode": 2,
            "code": "818",
            "name": "ocean sciences",
            "scope": "Sciences involved in the study of geological, biological, chemical, and physical characteristics and processes of the oceans."
        },
        {
            "thcode": 2,
            "code": "819",
            "name": "ocean temperature",
            "scope": "Distribution of heat in the oceans, including surface water, thermocline and mode waters, and deep waters.  Includes discussion and measures of both in-situ and potential temperature."
        },
        {
            "thcode": 2,
            "code": "2081",
            "name": "profiles",
            "scope": "Observations or calculations given for a series of depths, at or near the same horizontal position."
        },
        {
            "thcode": 2,
            "code": "2080",
            "name": "sound velocity",
            "scope": "Estimates of the velocity of sound in water, indexed by depth at a specific location, usually calculated from other water properties."
        },
        {
            "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": "013",
            "name": "location",
            "scope": "Positional information and services, for example addresses, geodetic networks, geodetic control points, postal zones and services, place names, geographic names"
        },
        {
            "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": "24",
            "name": "Water Column Features",
            "scope": "Includes persistent or regularly occurring waves, layers, water masses, upwellings, stratifications, and fronts that are defined by patterns of water velocity, physical properties, and biogeochemical properties; these features are listed and defined in the Layer, Hydroform, and Biogeochemical Feature layers of the Water Column Component of CMECS. Distributions are records of currents, physical properties, or biogeochemical water properties, often based on shipboard surveys or coastal monitoring programs, and maps of currents or water property climatology, which indicate the expected locations of features under present conditions or apply a classification structure like that of CMECS. Assessments are data that provide information about the ecological or economic values, impacts, drivers, connections, or functions of water column features in their present distributions. Predictions are the results of models projecting future changes to currents or other persistent oceanographic features (for example, clines, stratification, connectivity, linkages, and zones of separation) due to climate change, ice-cap melt, and changing freshwater inputs; models predicting the ecological or economic impacts of these changes; and scenario-testing models comparing ecological or economic outcomes of different management actions."
        },
        {
            "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": "399",
            "name": "data processing",
            "scope": "using computers to manage, analyze, and convert data into usable forms."
        },
        {
            "thcode": 61,
            "code": "417",
            "name": "Global Positioning System (GPS) observations",
            "scope": "the use of satellite signals from the Global Positioning System to determine the precise location of a terrestrial receiver."
        },
        {
            "thcode": 61,
            "code": "437",
            "name": "oceanographic observations",
            "scope": "used for field observations related to all aspects of oceanography: physical, chemical, and biological; may also be used for field studies of freshwater bodies that use oceanographic techniques."
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "2021-619-FA"
    ]
}