{
    "tag": 14449,
    "title": "Turbidity data from the Carmel River, central California, 2014 to 2017",
    "pubdate": "20220331",
    "sername": null,
    "series_name": null,
    "issue": "doi:10.5066\/P9HG8UDS",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P9HG8UDS\/Carmel_2013to2017_Turbidity.faq.html",
    "format": null,
    "email": null,
    "descript": "This data provides river turbidity measurements collected on the Carmel River, CA. Turbidity was measured to study any changes in the Carmel River\u2019s sediment loads following the removal of the San Clemente Dam. The USGS-run DTS-12 turbidity sensor was deployed above the Sleepy Hollow Weir on the Carmel River, CA (instrument was located at 36.445250 degrees North, 121.710494 degrees West). Deployment began on December 9, 2014. After June 16, 2016, the instrument was removed for calibration. A new instrument was re-deployed on October 14, 2016, and continued to record until recovery on July 13, 2017. Due to the instrument removal and calibration, there exists an approximately 4-month long gap in data collection from June 16 to October 14, 2016. The sensor recorded turbidity, water temperature, and battery voltage at 15-minute intervals. The data are in Formazin Nephelometric Units (FNU), which are similar to Nephelometric Turbidity Units (NTU) in that both measure scattered light at 90 degrees from the incident light beam. FNU are measured with an infrared light source (by the ISO 7027 method), whereas NTU requires a white light source (EPA method 180.1). For more information on FNU and water turbidity data, please visit http:\/\/or.water.usgs.gov\/grapher\/fnu.html. Apparently spurious data points were removed during processing. Those included: data points in which the temperature reading dropped abruptly to zero [both temperature and turbidity values were set to \"NaN\" (Not A Number)], data points in which the turbidity value abruptly dropped from a non-zero value to zero and recovered immediately to near the original non-zero reading (in which case turbidity, but not temperature, values were set to \"NaN\"), and several points were deleted in the record in which turbidity spiked rapidly by two or three orders of magnitude and then immediately returned to much lower values. This may occur, for example, if a leaf blocked the sensor momentarily, but we considered it was likely not a real increase in turbidity. Several rapid apparent increases in turbidity remain in the record. These may be real or spurious; they did not appear abrupt enough to be clearly spurious, and so are left in the record. Turbidity spikes were also removed that coincided with equipment deployment at the site.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "East, Amy E.",
            "role": "Author"
        },
        {
            "name": "Harrison, Lee R.",
            "role": "Author"
        },
        {
            "name": "Smith, Douglas P.",
            "role": "Author"
        },
        {
            "name": "Bond, Rosealea",
            "role": "Author"
        },
        {
            "name": "Logan, Joshua B.",
            "role": "Author"
        },
        {
            "name": "Nicol, Colin",
            "role": "Author"
        },
        {
            "name": "Chow, Kaitlyn",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "375",
            "name": "field inventory and monitoring",
            "scope": "Repeated observation or sampling at a site, on a scheduled or event basis, for study and analysis.  In general, this category excludes sampling programs in which materials are obtained in the field and brought back to a laboratory for study and analysis."
        },
        {
            "thcode": 2,
            "code": "589",
            "name": "inland fishery resources",
            "scope": "Stocks of fish available to be taken in lakes, streams, ponds, rivers, and other inland bodies of water."
        },
        {
            "thcode": 2,
            "code": "1001",
            "name": "river reaches",
            "scope": "Continuous parts of streams between two specified points."
        },
        {
            "thcode": 2,
            "code": "1002",
            "name": "river systems",
            "scope": "Long water courses including main streams and tributaries."
        },
        {
            "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": "012",
            "name": "inlandWaters",
            "scope": "Inland water features, drainage systems and characteristics, for example rivers and glaciers, salt lakes, water utilization plans, dams, currents, floods and flood hazards, water quality, hydrographic charts, watersheds, wetlands, hydrography"
        },
        {
            "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": "316",
            "name": "sediment transport",
            "scope": "the movement of sediments from source to sink."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/61ef2fb5d34e8b818adb7bb5?name=CarmelRiver.JPG&allowOpen=true",
            "description": "image of Carmel River channel in the former reservoir above the San Clemente Dam"
        }
    ],
    "fan": [
        "2014-643-FA",
        "2015-638-FA",
        "2016-638-FA",
        "2017-635-FA"
    ]
}