{
    "tag": 7596,
    "title": "Attenuation Factor model results for Upper Floridan aquifer vulnerability to Bromacil and Ethylene Dibromide",
    "pubdate": "20170828",
    "sername": null,
    "series_name": null,
    "issue": "doi:10.5066\/F7S46QTV",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/AF_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "This dataset includes Attenuation Factor (AF; Rao and others, 1985) model results for Upper Floridan aquifer vulnerability to Bromacil and 1,2-Dibromoethane or Ethylene Dibromide (EDB). The AF value serves as an index for assessing the transport of pesticide mass from the vadose zone. The AF model setup requires the input of raster soil bulk density, soil organic carbon content, soil field capacity, soil air filled porosity, recharge to the aquifer, depth to groundwater, the pesticide sorption coefficient, pesticide Henry's Law Constant, and pesticide half-life. These variables were entered into the AF equation using the raster calculator tool in ArcGIS. The resulting AF values are dimensionless and range between 0 and 1. A value of 1 indicates that all of the pesticides in the vadose zone will leach into the groundwater; conversely, a value of 0 suggests that no pesticides will leach into the groundwater.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Douglas, Steven H.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "464",
            "name": "geology",
            "scope": "Study of the planet earth, its composition, structure, physical and chemical processes, and history since its origin."
        },
        {
            "thcode": 2,
            "code": "513",
            "name": "groundwater",
            "scope": "All water that exists beneath the land surface, but more commonly applied to water in fully saturated soils and geologic formations."
        },
        {
            "thcode": 2,
            "code": "554",
            "name": "hydrogeology",
            "scope": "Study of subsurface waters and geologic aspects of surface waters."
        },
        {
            "thcode": 2,
            "code": "1306",
            "name": "water quality",
            "scope": "The chemical, physical, and biological characteristics of water, usually in respect to its suitability for a particular purpose."
        },
        {
            "thcode": 2,
            "code": "1308",
            "name": "water resources",
            "scope": "Stocks of water, the liquid derived from precipitation. A constituent of living matter and necessity for all life, it covers a large proportion of the earth's surface."
        },
        {
            "thcode": 15,
            "code": "007",
            "name": "environment",
            "scope": "Environmental resources, protection and conservation, for example environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape, water quality, air quality, environmental modeling"
        },
        {
            "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": "009",
            "name": "health",
            "scope": "Health, health services, human ecology, and safety, for example disease and illness, factors affecting health, hygiene, substance abuse, mental and physical health, health services, health care providers, public health"
        },
        {
            "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"
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "2018-304-MD"
    ]
}