nucos.js

(function (root, factory) {
    if(typeof define === "function" && define.amd) {
        define([], factory);
    } else if(typeof module === "object" && module.exports) {
        module.exports = factory();
    } else {
        root.nucos = factory();
    }
}(this, function() {
    //
    // BEGIN UNIT_DICT DECLARATION

var unitDict =
{
  "Length":{
    "meter":[
      1.0,
      [
        "m",
        "meters",
        "metre"
      ]
    ],
    "centimeter":[
      0.01,
      [
        "cm",
        "centimeters"
      ]
    ],
    "millimeter":[
      0.001,
      [
        "mm",
        "millimeters"
      ]
    ],
    "micron":[
      1e-06,
      [
        "\u00b5m",
        "micrometer",
        "microns"
      ]
    ],
    "kilometer":[
      1000.0,
      [
        "km",
        "kilometers"
      ]
    ],
    "foot":[
      0.3048,
      [
        "ft",
        "feet"
      ]
    ],
    "inch":[
      0.0254,
      [
        "in",
        "inches"
      ]
    ],
    "yard":[
      0.9144,
      [
        "yrd",
        "yards"
      ]
    ],
    "mile":[
      1609.344,
      [
        "mi",
        "miles"
      ]
    ],
    "nautical mile":[
      1852.0,
      [
        "nm",
        "nauticalmiles"
      ]
    ],
    "fathom":[
      1.8288,
      [
        "fthm",
        "fathoms"
      ]
    ],
    "latitude degree":[
      111120.0,
      [
        "latitudedegrees"
      ]
    ],
    "latitude minute":[
      1852.0,
      [
        "latitudeminutes"
      ]
    ]
  },
  "Oil Concentration":{
    "micron":[
      1.0,
      [
        "\u00b5m",
        "microns",
        "micrometer"
      ]
    ],
    "cubic meter per square kilometer":[
      1.0,
      [
        "m\u00b3/km\u00b2",
        "m^3/km^2"
      ]
    ],
    "millimeter":[
      1000.0,
      [
        "mm",
        "millimeters"
      ]
    ],
    "inch":[
      25400.0,
      [
        "in",
        "inches"
      ]
    ],
    "barrel per acre":[
      39.2866176,
      [
        "bbl/acre"
      ]
    ],
    "barrel per square mile":[
      0.06138533995,
      [
        "bbl/mile\u00b2",
        "bbl/sq.mile"
      ]
    ],
    "gallon per acre":[
      0.935395632026874,
      [
        "gal/acre"
      ]
    ],
    "liter per hectare":[
      0.1,
      [
        "liter/hectare",
        "l/hectare"
      ]
    ],
    "liter per square meter":[
      1000.0,
      [
        "l/m\u00b2",
        "l/m^2"
      ]
    ],
    "gram per square meter":[
      1.0526315789473684,
      [
        "g/m\u00b2",
        "g/m^2"
      ]
    ],
    "kilogram per square meter":[
      1052.6315789473683,
      [
        "kg/m\u00b2",
        "kg/m^2"
      ]
    ],
    "kilogram per square kilometer":[
      0.0010526315789473684,
      [
        "g/km\u00b2",
        "kg/km^2"
      ]
    ]
  },
  "Area":{
    "square meter":[
      1.0,
      [
        "m\u00b2",
        "m^2",
        "sq m"
      ]
    ],
    "square centimeter":[
      0.0001,
      [
        "cm\u00b2",
        "cm^2",
        "sq cm"
      ]
    ],
    "square kilometer":[
      1000000.0,
      [
        "km\u00b2",
        "km^2",
        "sq km"
      ]
    ],
    "acre":[
      4046.8564,
      [
        "ac",
        "acres"
      ]
    ],
    "square mile":[
      2589988.1,
      [
        "sq miles"
      ]
    ],
    "square nautical mile":[
      3429904,
      [
        "nm\u00b2",
        "sq nm",
        "nm^2"
      ]
    ],
    "square yard":[
      0.83612736,
      [
        "yd\u00b2",
        "sq yards",
        "square yards"
      ]
    ],
    "square foot":[
      0.09290304,
      [
        "ft\u00b2",
        "ft^2",
        "sq foot",
        "square feet"
      ]
    ],
    "square inch":[
      0.00064516,
      [
        "in\u00b2",
        "in^2",
        "sq inch",
        "square inches"
      ]
    ],
    "hectare":[
      10000.0,
      [
        "hectares",
        "ha"
      ]
    ]
  },
  "Volume":{
    "cubic meter":[
      1.0,
      [
        "m\u00b3",
        "m^3",
        "cu m",
        "cubic meters"
      ]
    ],
    "cubic kilometer":[
      1000000000.0,
      [
        "km\u00b3",
        "km^3",
        "cu km",
        "cubic kilometers"
      ]
    ],
    "cubic centimeter":[
      1e-06,
      [
        "cm\u00b3",
        "cm^3",
        "cu cm",
        "cc"
      ]
    ],
    "milliliter":[
      1e-06,
      [
        "ml",
        "milliters"
      ]
    ],
    "barrel (petroleum)":[
      0.1589873,
      [
        "bbl",
        "barrels",
        "barrel",
        "bbls"
      ]
    ],
    "liter":[
      0.001,
      [
        "l",
        "liters"
      ]
    ],
    "gallon":[
      0.0037854118,
      [
        "gal",
        "gallons",
        "usgal"
      ]
    ],
    "gallon (UK)":[
      0.00454609,
      [
        "ukgal",
        "gallons(uk)"
      ]
    ],
    "million US gallon":[
      3785.4118,
      [
        "milliongallons",
        "milgal"
      ]
    ],
    "cubic foot":[
      0.028316847,
      [
        "ft\u00b3",
        "ft^3",
        "cu feet",
        "cubicfeet"
      ]
    ],
    "cubic inch":[
      1.6387064e-05,
      [
        "in\u00b3",
        "in^3",
        "cu inch",
        "cubicinches"
      ]
    ],
    "cubic yard":[
      0.76455486,
      [
        "yd\u00b3",
        "yd^3",
        "cu yard",
        "cubicyards"
      ]
    ],
    "fluid ounce":[
      2.957353e-05,
      [
        "oz",
        "ounces(fluid)",
        "fluid oz"
      ]
    ],
    "fluid ounce (UK)":[
      2.841306e-05,
      [
        "ukoz",
        "fluid oz(uk)"
      ]
    ]
  },
  "Temperature":{
    "Kelvin":[
      [
        1.0,
        0.0
      ],
      [
        "K",
        "degrees k",
        "degree k",
        "degrees kelvin",
        "degree kelvin",
        "deg k"
      ]
    ],
    "Celsius":[
      [
        1.0,
        273.15
      ],
      [
        "C",
        "degrees c",
        "degrees celsius",
        "deg c",
        "centigrade"
      ]
    ],
    "Fahrenheit":[
      [
        0.5555555555555556,
        459.66999999999996
      ],
      [
        "F",
        "degrees f",
        "degree f",
        "degrees fahrenheit",
        "deg f"
      ]
    ]
  },
  "Delta Temperature":{
    "Kelvin":[
      1.0,
      [
        "K",
        "degrees k",
        "degree k",
        "degrees kelvin",
        "degree kelvin",
        "deg k"
      ]
    ],
    "Celsius":[
      1.0,
      [
        "C",
        "degrees c",
        "degrees celsius",
        "deg c",
        "centigrade"
      ]
    ],
    "Fahrenheit":[
      0.5555555555555556,
      [
        "F",
        "degrees f",
        "degree f",
        "deg f",
        "degrees fahrenheit"
      ]
    ]
  },
  "Mass":{
    "kilogram":[
      1.0,
      [
        "kg",
        "kilograms"
      ]
    ],
    "pound":[
      0.45359237,
      [
        "lb",
        "pounds",
        "lbs"
      ]
    ],
    "gram":[
      0.001,
      [
        "g",
        "grams"
      ]
    ],
    "milligram":[
      1e-06,
      [
        "mg"
      ]
    ],
    "microgram":[
      1e-09,
      [
        "\u00b5g",
        "ug"
      ]
    ],
    "ton":[
      907.18474,
      [
        "tons",
        "uston"
      ]
    ],
    "metric ton (tonne)":[
      1000.0,
      [
        "tonnes",
        "metric ton",
        "metric tons",
        "mt"
      ]
    ],
    "slug":[
      14.5939,
      [
        "slugs"
      ]
    ],
    "ounce":[
      0.028349523,
      [
        "oz",
        "ounces"
      ]
    ],
    "ton (UK)":[
      1016.0469,
      [
        "ukton",
        "long ton"
      ]
    ]
  },
  "Time":{
    "second":[
      1.0,
      [
        "s",
        "sec",
        "seconds"
      ]
    ],
    "minute":[
      60.0,
      [
        "min",
        "minutes"
      ]
    ],
    "hour":[
      3600.0,
      [
        "hr",
        "hours",
        "hrs"
      ]
    ],
    "day":[
      86400.0,
      [
        "days"
      ]
    ]
  },
  "Velocity":{
    "meter per second":[
      1.0,
      [
        "m/s",
        "meters per second",
        "mps",
        "meter second-1",
        "meters s-1",
        "m s-1",
        "meter/sec"
      ]
    ],
    "centimeter per second":[
      0.01,
      [
        "cm/s"
      ]
    ],
    "meter per minute":[
      0.01666666666,
      [
        "m/min",
        "meters per minute"
      ]
    ],
    "kilometer per hour":[
      0.277777,
      [
        "km/h",
        "km/hr"
      ]
    ],
    "kilometer per day":[
      0.0115740416666666,
      [
        "km/day",
        "km/d"
      ]
    ],
    "knot":[
      0.514444,
      [
        "kts",
        "knots"
      ]
    ],
    "mile per hour":[
      0.44704,
      [
        "mph",
        "miles per hour"
      ]
    ],
    "foot per second":[
      0.3048,
      [
        "ft/s",
        "ft/sec",
        "feet per second",
        "feet/s"
      ]
    ],
    "foot per minute":[
      0.00508,
      [
        "ft/min",
        "feet per minute",
        "feet/min"
      ]
    ],
    "foot per hour":[
      8.4666e-05,
      [
        "ft/hr",
        "feet per hour",
        "feet/hour"
      ]
    ]
  },
  "Discharge":{
    "cubic meter per second":[
      1.0,
      [
        "m\u00b3/s",
        "m^3/s",
        "cu m/s",
        "cms"
      ]
    ],
    "cubic meter per min":[
      0.016666666666666666,
      [
        "m\u00b3/min",
        "m^3/min"
      ]
    ],
    "cubic meter per hour":[
      0.0002777777777777778,
      [
        "m\u00b3/hr",
        "m^3/hr"
      ]
    ],
    "liter per second":[
      0.001,
      [
        "l/s",
        "lps"
      ]
    ],
    "liter per minute":[
      1.6666666666666667e-05,
      [
        "l/min"
      ]
    ],
    "cubic foot per second":[
      0.02831685,
      [
        "ft\u00b3/s",
        "cfs",
        "cu feet/s",
        "feet^3/s"
      ]
    ],
    "cubic foot per minute":[
      0.00047194744,
      [
        "ft\u00b3/min",
        "ft^3/min"
      ]
    ],
    "gallon per day":[
      4.3812636805555563e-08,
      [
        "gal/day"
      ]
    ],
    "gallon per hour":[
      1.0515032833333335e-06,
      [
        "gal/hr"
      ]
    ],
    "gallon per minute":[
      6.3090197e-05,
      [
        "gal/min",
        "gpm"
      ]
    ],
    "gallon per second":[
      0.0037854118,
      [
        "gal/s",
        "gal/sec"
      ]
    ],
    "barrel per hour":[
      4.4163138888888885e-05,
      [
        "bbl/hr"
      ]
    ],
    "barrel per day":[
      1.84013078e-06,
      [
        "bbl/day",
        "bbl/d"
      ]
    ]
  },
  "Mass Discharge":{
    "kilogram per second":[
      1.0,
      [
        "kg/s"
      ]
    ],
    "gram per second":[
      0.001,
      [
        "g/s"
      ]
    ]
  },
  "Density":{
    "gram per cubic centimeter":[
      1.0,
      [
        "g/cm\u00b3",
        "g/cm^3",
        "grams per cubic centimeter"
      ]
    ],
    "gram per liter":[
      0.001,
      [
        "g/L",
        "gram per litre"
      ]
    ],
    "kilogram per liter":[
      1.0,
      [
        "kg/L",
        "kilogram per litre"
      ]
    ],
    "gram per milliliter":[
      1.0,
      [
        "g/mL",
        "gram per millilitre"
      ]
    ],
    "specific gravity (15\u00b0C)":[
      0.999016,
      [
        "S",
        "specificgravity",
        "Spec grav",
        "SG",
        "specificgravity(15C)"
      ]
    ],
    "kilogram per cubic meter":[
      0.001,
      [
        "kg/m\u00b3",
        "kg/m^3"
      ]
    ],
    "tonne per cubic meter":[
      1.0,
      [
        "tonne/m\u00b3",
        "tonne/m^3",
        "t/m^3",
        "t/m\u00b3"
      ]
    ],
    "pound per cubic foot":[
      0.016018463,
      [
        "lb/ft\u00b3",
        "lbs/ft^3",
        "lb/ft^3"
      ]
    ],
    "pound per gallon":[
      0.11982643,
      [
        "lbs/gal",
        "lb/gal"
      ]
    ],
    "API degree":[
      1,
      [
        "api"
      ]
    ]
  },
  "Kinematic Viscosity":{
    "Stoke":[
      1.0,
      [
        "St",
        "stokes"
      ]
    ],
    "centiStoke":[
      0.01,
      [
        "cSt",
        "centistokes"
      ]
    ],
    "square millimeter per second":[
      0.01,
      [
        "mm\u00b2/s",
        "mm^2/s"
      ]
    ],
    "square centimeter per second":[
      1.0,
      [
        "cm\u00b2/s",
        "cm^2/s"
      ]
    ],
    "square meter per second":[
      10000,
      [
        "m\u00b2/s",
        "m^2/s"
      ]
    ],
    "square inch per second":[
      6.4516,
      [
        "in\u00b2/s",
        "in^2/s",
        "squareinchespersecond"
      ]
    ],
    "Saybolt Universal Second":[
      0.0021645021645021645,
      [
        "SSU",
        "SUS"
      ]
    ],
    "Saybolt Furol Second":[
      0.02116959064,
      [
        "SSF",
        "SFS"
      ]
    ]
  },
  "Dynamic Viscosity":{
    "kilogram per meter per second":[
      1.0,
      [
        "kg/(m s)"
      ]
    ],
    "Pascal second":[
      1.0,
      [
        "Pa s"
      ]
    ],
    "milliPascal second":[
      0.001,
      [
        "mPa s"
      ]
    ],
    "Newton seconds per square meter":[
      1.0,
      [
        "N s/m\u00b2",
        "N s/m^2"
      ]
    ],
    "gram per centimeter per second":[
      0.1,
      [
        "g/(cm s)"
      ]
    ],
    "poise":[
      0.1,
      [
        "p"
      ]
    ],
    "dyne seconds per square centimeter":[
      0.1,
      [
        "dyne s/cm\u00b2",
        "dyne s/cm^2"
      ]
    ],
    "centipoise":[
      0.001,
      [
        "cP"
      ]
    ]
  },
  "Interfacial Tension":{
    "Newton per meter":[
      1.0,
      [
        "N/m"
      ]
    ],
    "milliNewton per meter":[
      0.001,
      [
        "mN/m"
      ]
    ],
    "dyne per centimeter":[
      0.001,
      [
        "dyne/cm",
        "dyn/cm"
      ]
    ],
    "Poundal per inch":[
      5.443108492,
      [
        "pdl/in"
      ]
    ],
    "Pound force per inch":[
      175.126837,
      [
        "lbf/in"
      ]
    ],
    "erg per square centimeter":[
      0.001,
      [
        "erg/cm\u00b2",
        "erg/cm^2"
      ]
    ],
    "erg per square millimeter":[
      0.1,
      [
        "erg/mm\u00b2",
        "erg/mm^2"
      ]
    ],
    "joule per square meter":[
      1.0,
      [
        "j/m\u00b2",
        "j/m^2"
      ]
    ]
  },
  "Pressure":{
    "Pascal":[
      1.0,
      [
        "Pa"
      ]
    ],
    "kiloPascal":[
      1000.0,
      [
        "kPa"
      ]
    ],
    "megaPascal":[
      1000000.0,
      [
        "MPa"
      ]
    ],
    "Newton per square meter":[
      1.0,
      [
        "N/m\u00b2",
        "N/m^2"
      ]
    ],
    "bar":[
      100000.0,
      [
        "bars"
      ]
    ],
    "millibar":[
      100.0,
      [
        "mbar"
      ]
    ],
    "dyne per square centimeter":[
      0.1,
      [
        "dyn/cm\u00b2",
        "dyn/cm^2"
      ]
    ],
    "pound per square inch":[
      6894.76,
      [
        "lb/in\u00b2",
        "lb/in^2",
        "psi"
      ]
    ]
  },
  "Concentration In Water":{
    "kilogram per cubic meter":[
      1.0,
      [
        "kg/m\u00b3",
        "kg/m^3"
      ]
    ],
    "gram per cubic meter":[
      0.001,
      [
        "g/m\u00b3",
        "g/m^3"
      ]
    ],
    "part per million":[
      0.001,
      [
        "ppm",
        "parts per million"
      ]
    ],
    "part per billion":[
      1e-06,
      [
        "ppb",
        "parts per billion"
      ]
    ],
    "part per thousand":[
      1.0,
      [
        "\u2030",
        "0/00",
        "ppt",
        "parts per thousand"
      ]
    ],
    "part per trillion":[
      1e-09,
      [
        "pptr",
        "parts per trillion"
      ]
    ],
    "fraction (decimal)":[
      1000.0,
      [
        "fraction",
        "mass per mass",
        "1"
      ]
    ],
    "percent":[
      10.0,
      [
        "%",
        "parts per hundred"
      ]
    ],
    "pound per cubic foot":[
      16.018450433864,
      [
        "lb/ft\u00b3",
        "lb/ft^3"
      ]
    ],
    "milligram per liter":[
      0.001,
      [
        "mg/l"
      ]
    ],
    "gram per liter":[
      1.0,
      [
        "g/l"
      ]
    ],
    "kilogram per liter":[
      1000.0,
      [
        "kg/l"
      ]
    ],
    "milligram per gram":[
      1.0,
      [
        "mg/g"
      ]
    ],
    "milligram per kilogram":[
      0.001,
      [
        "mg/kg"
      ]
    ],
    "milligram per milliliter":[
      1.0,
      [
        "mg/ml"
      ]
    ],
    "microgram per liter":[
      1e-06,
      [
        "\u00b5g/l",
        "ug/l"
      ]
    ],
    "microgram per gram":[
      0.001,
      [
        "\u00b5g/g",
        "ug/g"
      ]
    ],
    "nanogram per liter":[
      1e-09,
      [
        "ng/l"
      ]
    ]
  },
  "Concentration":{
    "fraction (decimal)":[
      1.0,
      [
        "fraction",
        "mass per mass",
        "1"
      ]
    ],
    "percent":[
      0.01,
      [
        "%",
        "parts per hundred"
      ]
    ],
    "part per thousand":[
      0.001,
      [
        "\u2030",
        "0/00",
        "parts per thousand"
      ]
    ],
    "part per million":[
      1e-06,
      [
        "ppm",
        "parts per million"
      ]
    ],
    "part per billion":[
      1e-09,
      [
        "ppb",
        "parts per billion"
      ]
    ],
    "part per trillion":[
      1e-12,
      [
        "parts per trillion"
      ]
    ]
  },
  "Dimensionless":{
    "fraction (decimal)":[
      1.0,
      [
        "number",
        "fraction",
        "1"
      ]
    ],
    "percent":[
      0.01,
      [
        "%",
        "parts per hundred"
      ]
    ],
    "part per thousand":[
      0.001,
      [
        "\u2030",
        "0/00",
        "ppt",
        "parts per thousand"
      ]
    ]
  },
  "Mass Fraction":{
    "fraction (decimal)":[
      1.0,
      [
        "fraction",
        "1",
        "mass per mass"
      ]
    ],
    "percent":[
      0.01,
      [
        "%",
        "parts per hundred"
      ]
    ],
    "part per thousand":[
      0.001,
      [
        "\u2030",
        "0/00",
        "ppt",
        "parts per thousand"
      ]
    ],
    "part per million":[
      1e-06,
      [
        "ppm",
        "parts per million"
      ]
    ],
    "part per billion":[
      1e-09,
      [
        "ppb",
        "parts per billion"
      ]
    ],
    "part per trillion":[
      1e-12,
      [
        "parts per trillion"
      ]
    ],
    "gram per kilogram":[
      0.001,
      [
        "g/kg"
      ]
    ],
    "milligram per gram":[
      0.001,
      [
        "mg/g"
      ]
    ],
    "milligram per kilogram":[
      1e-06,
      [
        "mg/kg"
      ]
    ],
    "microgram per gram":[
      1e-06,
      [
        "\u00b5g/g",
        "ug/g"
      ]
    ],
    "nanogram per gram":[
      1e-09,
      [
        "ng/g",
        "nanograms per gram"
      ]
    ]
  },
  "Volume Fraction":{
    "fraction (decimal)":[
      1.0,
      [
        "fraction",
        "1",
        "mass per mass"
      ]
    ],
    "percent":[
      0.01,
      [
        "%",
        "parts per hundred"
      ]
    ],
    "part per thousand":[
      0.001,
      [
        "\u2030",
        "0/00",
        "ppt",
        "parts per thousand"
      ]
    ],
    "part per million":[
      1e-06,
      [
        "ppm",
        "parts per million"
      ]
    ],
    "part per billion":[
      1e-09,
      [
        "ppb",
        "parts per billion"
      ]
    ],
    "part per trillion":[
      1e-12,
      [
        "parts per trillion"
      ]
    ],
    "milliliter per liter":[
      0.001,
      [
        "ml/l",
        "mL/L",
        "mL/dm^3"
      ]
    ],
    "liter per cubic meter":[
      0.001,
      [
        "l/m^3",
        "L/m^3"
      ]
    ]
  },
  "Angular Measure":{
    "radians":[
      1.0,
      [
        "radian",
        "rad"
      ]
    ],
    "degrees":[
      0.017453292519943295,
      [
        "degree",
        "deg"
      ]
    ]
  },
  "Angular Velocity":{
    "rad/s":[
      1.0,
      [
        "1/s",
        "radians/sec"
      ]
    ],
    "hertz":[
      6.283185307179586,
      [
        "hz",
        "cycles/sec"
      ]
    ],
    "rpm":[
      0.10471975511965977,
      [
        "rotations per minute"
      ]
    ]
  }
};

// END UNIT_DICT DECLARATION

    var decimalReg = new RegExp(/[\d.]+/g);

    /**
     * @param str String that is parsed to determine the decimal degree value
     * @return The decimal degree amount
    **/
    var sexagesimal2decimal = function(str){
        /**
         * This version mirrors what the Python version does
         * https://github.com/NOAA-ORR-ERD/lat_lon_parser
        **/

        str = str.trim();
        str = str.toLowerCase();
        str = str.replace("north", "n");
        str = str.replace("south", "s");
        str = str.replace("east", "e");
        str = str.replace("west", "w");

        // change W and S to a negative value
        negative = str.endsWith("w") || str.endsWith("s") ? -1 : 1;
        // capture minus sign
        negative = str.startsWith("-") ? -1 : negative;

        // find the parts
        // var decimalReg = new RegExp(/[\d.]+/g);
        var numbers = str.match(decimalReg);

        var deg = 0.0;
        var min = 0.0;
        var sec = 0.0;
        if (numbers.length == 1) { // decimal degrees
            deg = Number(numbers[0]);
        }
        else if (numbers.length == 2) { // degrees, minutes
            deg = Number(numbers[0]);
            if (!Number.isInteger(deg)){
                throw "Value Error: Degrees must be an integer if minutes are there";
            }
            min = Number(numbers[1]);
        }
        else if (numbers.length === 3) { // degrees, minutes, seconds
            deg = Number(numbers[0]);
            if (!Number.isInteger(deg)){
                throw "Value Error: Degrees must be an integer if minutes are there";
            }
            min = Number(numbers[1]);
            if (!Number.isInteger(min)){
                throw "Value Error: Minutes must be an integer if seconds are there.";
            }
            sec = Number(numbers[2]);
        }

        if (deg > 180){
            throw "Degrees can not be greater than 180"
        }
        if ((min > 60) || (sec > 60)){
            throw "Minutes and seconds can not be greater than 60"
        }
        var dec = deg + (min / 60) + (sec / 3600);
        // set the sign
        dec = (Math.sign(dec) === Math.sign(negative)) ? dec : -dec ;
        if (Number.isNaN(dec)){
            throw "Value Error: invalid numbers";
        }
        // This used to return a string, which seems like a bad idea.
        // but rounding makes tests easier ??
        dec = Number(dec.toFixed(8))
        return dec;
    };



    /**
     * Method used to calculate the total duration of an in-situ burn
     *
     * @param thickness The initial thickness of the oil
     *                  immediately preceding the burn in meters
     * @param waterFract The emulsion water fraction value associated with
     *                   the burned oil between 0 and 1
     * @return The time duration in seconds for how long the burn will take
     *         to complete
    **/
    var _BurnDuration = function(thickness, waterFract){
        return (thickness - 0.002) / (0.000058 * (1 - waterFract));
    };

    /**
    *
    * Modifies The string with the whitespace and capitalization removed.
    * Also treats the '.' as a space.
    * 
    * @param str String that is manipulated
    * @return The simplified string
    **/
    var _Simplify = function(str){
        return str.toLowerCase().replace('.' , ' ').split(' ').join('');
    };

    /**
    * @return a list of all the unit types available
    * a unit type is something like "mass", "velocity", etc.
    **/
    var _GetUnitTypes = function(){
        var keysArray = [];
        for (var key in unitDict){
            keysArray.push(key);
        }
        return keysArray;
    };

    /**
    * @return a list of all the units available for a given unit
    * type available
    * a unit type is something like "mass" while a unit of mass
    * would be "kilogram", "slug", etc.
    **/
    var _GetUnitNames = function(unitType){
        var namesArray = [];
        for (var key in unitDict[unitType]){
            namesArray.push(key);
        }
        return namesArray;
    };

    var _items = function(obj){
        var itemsArray = [];
        for (var key in obj){
            itemsArray.push(obj[key]);
        }
        return itemsArray;
    };

    /**
    * @return a mapping of all the unit names to the unit types
    **/
    var _FindUnitTypes = function(){
        var unitTypes = {};
        var unitKeys = _GetUnitTypes();
        for (var i = 0; i < unitKeys.length; i++){
            var unitType = unitKeys[i];
            if (unitType === "Oil Concentration" || unitType === "Concentration In Water"){
                continue;
            }
            for (var primaryName in unitDict[unitType]){
                var pname = primaryName;
                unitTypes[pname] = unitType;
                for (var key in unitDict[unitType]){
                    for (var k = 0; k < unitDict[unitType][key][1].length; k++){
                        if (unitType === "Volume" && unitDict[unitType][key][1][k] === "oz"){
                            continue;
                        }
                        unitTypes[unitDict[unitType][key][1][k]] = unitType;
                    }
                }
            }
        }
        return unitTypes;
    };

    /**
    * @param unitType the type of unit: "mass", "length", etc.
    * @param unit the unit you want the abbreviation for: "gram", etc.
    * @return the standard abbreviation for a given unit
    **/
    var _GetUnitAbbreviation = function(unitType, unit){
        return unitDict[unitType][unit][1][0];
    };

    /**
    * @param unit1 string of unit to compare
    * @param unit2 string of unit to compare
    * @return boolean showing if the units are synonyms or not
    **/
    var _isSameUnit = function(unit1, unit2){
        var allTypes = FindUnitTypes();
        var typeOne = allTypes[unit1];
        var typeTwo = allTypes[unit2];
        if (typeOne !== typeTwo){
            return false;
        } else {

        }
    };

    var ConverterClass = function(TypeName, UnitsDict){
        this.Name = TypeName;
        this.Synonyms = {};
        this.Convertdata = {};
        this.PrimaryUnitNames = {};


        // loop through the UnitsDict to construct the a per term value and synomym set.
        // ['degrees', ((1.0, 273.15), ['C', 'degrees c', 'degrees celsius', 'deg c', 'centigrade'])]

        var dataDict = [];
        for (var unitTerm in UnitsDict){
            dataDict.push([unitTerm, UnitsDict[unitTerm]]);
        }

        dataDict.forEach(dataSet => {
            var [primaryName, data] = dataSet;

            var pname = _Simplify(primaryName);

            this.PrimaryUnitNames[pname] = primaryName.replace(/\w\S*/g, (txt) => {
                return txt.charAt(0).toUpperCase() + txt.substr(1);
            });

            this.Convertdata[pname] = data[0];
            this.Synonyms[pname] = pname;

            data[1].forEach(synonym => {
                this.Synonyms[_Simplify(synonym)] = pname;
            });
        });

        this.Convert = function(FromUnit, ToUnit, Value){
            var fromUnit = _Simplify(FromUnit);
            var toUnit = _Simplify(ToUnit);
            var value = Value;

            toUnit = this.Synonyms[toUnit];
            fromUnit = this.Synonyms[fromUnit];
            return value * this.Convertdata[fromUnit] / this.Convertdata[toUnit];
        };
    };

    var DensityConverterClass = function(TypeName, UnitsDict){
        ConverterClass.call(this, TypeName, UnitsDict);
        this.Convert = function(FromUnit, ToUnit, Value){
            var fromUnit = _Simplify(FromUnit);
            var toUnit = _Simplify(ToUnit);
            var value = Value;
            var toVal;

            toUnit = this.Synonyms[toUnit];
            fromUnit = this.Synonyms[fromUnit];
            if (fromUnit === "apidegree"){
                value = 141.5 / (value + 131.5);
                fromUnit = "specificgravity(15\xb0c)";
            }
            if (toUnit === "apidegree"){
                toVal = 141.5 / (value * this.Convertdata[fromUnit] / this.Convertdata["specificgravity(15\xb0c)"]) - 131.5;
            } else {
                toVal = value * this.Convertdata[fromUnit] / this.Convertdata[toUnit];
            }
            return toVal;
        };
    };

    DensityConverterClass.prototype = Object.create(ConverterClass.prototype);

    DensityConverterClass.prototype.constructor = DensityConverterClass;

    var TempConverterClass = function(TypeName, UnitsDict){
        ConverterClass.call(this, TypeName, UnitsDict);
        this.Convert = function(FromUnit, ToUnit, Value){
            var fromUnit = _Simplify(FromUnit);
            var toUnit = _Simplify(ToUnit);

            fromUnit = this.Synonyms[fromUnit];
            toUnit = this.Synonyms[toUnit];

            var a1 = this.Convertdata[fromUnit][0];
            var b1 = this.Convertdata[fromUnit][1];
            var a2 = this.Convertdata[toUnit][0];
            var b2 = this.Convertdata[toUnit][1];

            var toVal = ((Value + b1) * a1 / a2) - b2;

            return toVal;
        };
    };

    TempConverterClass.prototype = Object.create(ConverterClass.prototype);

    TempConverterClass.prototype.constructor = TempConverterClass;

    // loop through the UnitsDict to construct the a per term value and synomym set.
    // ['degrees', ((1.0, 273.15), ['C', 'degrees c', 'degrees celsius', 'deg c', 'centigrade'])]
    var Converters = {};
    var dataDict = [];

    for (var unitType in unitDict){
        dataDict.push([unitType, unitDict[unitType]]);
    }

    dataDict.forEach(dataSet => {
        var [unitType, data] = dataSet;

        if (unitType.toLowerCase() === "density") {
            Converters["density"] = new DensityConverterClass(unitType, data);
        }
        else if (unitType.toLowerCase() === "temperature") {
            Converters["temperature"] = new TempConverterClass(unitType, data);
        }
        else {
            Converters[_Simplify(unitType)] = new ConverterClass(unitType, data);
        }
    });

    var convert = function(UnitType, FromUnit, ToUnit, Value){
        var unitType = _Simplify(UnitType);
        var Converter = Converters[unitType];
        return Converter.Convert(FromUnit, ToUnit, Value);
    };

    var unitMap = _FindUnitTypes();

    /**
    * class for Oil Quantity conversion -- mass to/from Volume
    * requires density info as well
    **/
    var OilQuantityConverter = function(){

        /**
        * @param fromAmount: The amount of the substance you are converting from
        * @param fromUnit: The unit of the amount you are converting from
        * @param Density: The density of the substance you are converting
        * @param DensityUnits: The units of the density the user provided
        * @param toUnit: The units the user would like to see the amount returned in
        **/
        var Convert = function(fromAmount, fromUnit, Density, DensityUnits, toUnit){
            if (unitMap[fromUnit] !== unitMap[toUnit]){
                if (unitMap[fromUnit] === "Volume" && unitMap[toUnit] === "Mass"){
                    return ToMass(fromAmount, fromUnit, Density, DensityUnits, toUnit);
                } else if (unitMap[fromUnit] === "Mass" && unitMap[toUnit] === "Volume"){
                    return ToVolume(fromAmount, fromUnit, Density, DensityUnits, toUnit);
                }
            } else {
                return convert(unitMap[fromUnit], fromUnit, toUnit, fromAmount);
            }
        };

        /**
         * @param Mass: mass you want converted to volume
         * @param MassUnits: unit of mass input
         * @param Density: density of oil
         * @param DensityUnits: units of density
         * @param VolumeUnits: units of volume desired
        **/
        var ToVolume = function(Mass, MassUnits, Density, DensityUnits, VolumeUnits){
            var density = convert("Density", DensityUnits, "kg/m^3", Density);
            var mass = convert("Mass", MassUnits, "kg", Mass);
            var volume = mass / density;
            volume = convert("Volume", "m^3", VolumeUnits, volume);
            return volume;
        };

        /**
         * @param Volume: volume you want converted to mass
         * @param VolumeUnits: units of volume input
         * @param Density: density of oil
         * @param DensityUnits: units of density
         * @param MassUnits: unit of mass desired for output
        **/
        var ToMass = function(Volume, VolUnits, Density, DensityUnits, MassUnits){
            var density = convert("Density", DensityUnits, "kg/m^3", Density);
            var volume = convert("Volume", VolUnits, "m^3", Volume);
            var mass = volume * density;
            mass = convert("Mass", "kg", MassUnits, mass);
            return mass;
        };

        return {
            Convert: Convert
        };
    };

    var waterDensity = function(){

        var calcRho = function(temp){
            var rho;
            rho = 1000 * (1.0 - (temp + 288.9414) / (508929.2 * (temp + 68.12963)) * (Math.pow(temp - 3.9863, 2)));
            return rho;
        };

        var calcRhos = function(rho, conc, temp){
            var rhos, coeffA, coeffB;
            coeffA = 0.824493 - 0.0040899 * temp + 0.000076438 * Math.pow(temp,2) - 0.00000082467 * Math.pow(temp,3) + 0.0000000053675 * Math.pow(temp,4);
            coeffB = -0.005724 + 0.00010227 * temp - 0.0000016546 * Math.pow(temp,2);
            rhos = rho + coeffA * conc + coeffB * Math.pow(conc, (3/2)) + 0.00048314 * Math.pow(conc, 2);
            return rhos;
        };

        var calcDensity = function(temp, conc){
            var rho = calcRho(temp);
            var rhos = calcRhos(rho, conc, temp);
            return rhos;
        };

        return {
            calcDensity: calcDensity
        };
    };

    var rayleighDist = function(){

        var rayleigh_sigma_from_wind = function(avg_speed){
            return Math.sqrt(2.0 / Math.PI) * avg_speed;
        };

        var rayleigh_pdf = function(x, sigma){
            var exponentForE = (-1.0 / 2.0) * (Math.pow(x, 2) / Math.pow(sigma, 2.0));
            return (x / Math.pow(sigma, 2) * Math.pow(Math.E, exponentForE));
        };

        var rayleigh_cdf = function(x, sigma){
            var exponentForE = (-1.0 / 2.0) * (Math.pow(x, 2) / Math.pow(sigma, 2.0));
            return 1.0 - Math.pow(Math.E, exponentForE);
        };

        var rayleigh_quantile = function(f, sigma){
            return (sigma * Math.sqrt((-1.0 * Math.log(Math.pow((1.0 - f), 2)))));
        };

        var rangeFinder = function(avg_speed, uncertainty){
            var sigma = rayleigh_sigma_from_wind(avg_speed);
            var low = rayleigh_quantile(0.5 - uncertainty, sigma);
            var high = rayleigh_quantile(0.5 + uncertainty, sigma);
            return {"low": low, "high": high};
        };

        return {
            rangeFinder: rangeFinder
        };

    };

    var nucos = {
        _Simplify: _Simplify,
        _GetUnitTypes: _GetUnitTypes,
        OilQuantityConverter: OilQuantityConverter,
        Converters: Converters,
        convert: convert,
        sexagesimal2decimal: sexagesimal2decimal,
        _BurnDuration: _BurnDuration,
        rayleighDist: rayleighDist,
        waterDensity: waterDensity
    };
    return nucos;
}));