netcdf ots/Stellwagen/MATANZAS_18/11123absss-a.nc {
  dimensions:
    lat = 1;
    lon = 1;
    time = 1891;
    depth = 150;
  variables:
    float lat(lat=1);
      :units = "Degrees North";
      :type = "EVEN";
      :epic_code = 500.0; // double
      :name = "LAT";
      :long_name = "LATITUDE";
      :datum = "NAD83";

    float lon(lon=1);
      :units = "Degrees East";
      :type = "EVEN";
      :epic_code = 502.0; // double
      :name = "LON";
      :long_name = "LONGITUDE";
      :datum = "NAD83";

    int time(time=1891);
      :units = "True Julian Day";
      :name = "time";
      :type = "EVEN";
      :epic_code = 624.0; // double
      :datum = "Time (UTC) in True Julian Days: 2440000 = 0000 h on May 23, 1968";
      :note = "Linear clock drift correction applied";

    int time2(time=1891);
      :units = "msec since 0:00 GMT";
      :type = "EVEN";
      :name = "time";
      :epic_code = 624.0; // double
      :datum = "Time (UTC) in True Julian Days: 2440000 = 0000 h on May 23, 1968";
      :note = "Linear clock drift correction applied";

    float depth(depth=150);
      :_FillValue = 1.0E35f; // float
      :units = "m";
      :type = "EVEN";
      :epic_code = 3.0; // double
      :long_name = "Depth of bin relative to input Mean Water depth (m)";
      :bin_size = 0.01, 0.01, 0.01; // double
      :bin_count = 150.0; // double
      :WATER_DEPTH = 14.9; // double
      :WATER_DEPTH_source = "(meters), nominal depth";
      :transducer_offset_from_bottom = 1.3, 1.3, 1.3; // double
      :NOTE = "downlooking bin depths = water_depth - transducer offset from bottom + bindist";

    int burst(time=1891);
      :minimum = 1; // int
      :maximum = 1891; // int
      :_FillValue = -2147483648; // int
      :units = "count";
      :name = "burst";
      :generic_name = "record";
      :long_name = "Burst Number";

    float bindist1(depth=150);
      :_FillValue = 1.0E35f; // float
      :units = "m";
      :long_name = "distance from transducer head";
      :frequency = "2.5 Mhz";
      :bin_size = 0.01, 0.01, 0.01; // double
      :transducer_offset_from_bottom = 1.3; // double
      :bin_count = 150.0; // double
      :WATER_DEPTH = 14.9; // double
      :WATER_DEPTH_source = "(meters), nominal depth";
      :NOTE = "distance is along profile from instrument head to center of bin";
      :minimum = 0.01f; // float
      :maximum = 1.5f; // float

    float bindist2(depth=150);
      :_FillValue = 1.0E35f; // float
      :units = "m";
      :long_name = "distance from transducer head";
      :frequency = "4.0 Mhz";
      :bin_size = 0.01, 0.01, 0.01; // double
      :transducer_offset_from_bottom = 1.3; // double
      :bin_count = 150.0; // double
      :WATER_DEPTH = 14.9; // double
      :WATER_DEPTH_source = "(meters), nominal depth";
      :NOTE = "distance is along profile from instrument head to center of bin";
      :minimum = 0.01f; // float
      :maximum = 1.5f; // float

    float bindist3(depth=150);
      :_FillValue = 1.0E35f; // float
      :units = "m";
      :long_name = "distance from transducer head";
      :frequency = "0.5 Mhz";
      :bin_size = 0.01, 0.01, 0.01; // double
      :transducer_offset_from_bottom = 1.3; // double
      :bin_count = 150.0; // double
      :WATER_DEPTH = 14.9; // double
      :WATER_DEPTH_source = "(meters), nominal depth";
      :NOTE = "distance is along profile from instrument head to center of bin";
      :minimum = 0.01f; // float
      :maximum = 1.5f; // float

    float ABS1(time=1891, depth=150, lat=1, lon=1);
      :minimum = 7.3209405E-5f; // float
      :maximum = 0.37422517f; // float
      :frequency = "2.5 Mhz";
      :transducer_offset_from_bottom = 1.3; // double
      :_FillValue = 1.0E35f; // float
      :units = "Normalized counts";
      :long_name = "Transducer 1 burst mean backscatter amplitude";

    float ABS2(time=1891, depth=150, lat=1, lon=1);
      :minimum = 7.211417E-5f; // float
      :maximum = 0.10104818f; // float
      :_FillValue = 1.0E35f; // float
      :units = "Normalized counts";
      :long_name = "Transducer 2 burst mean backscatter amplitude";
      :frequency = "4.0 Mhz";
      :transducer_offset_from_bottom = 1.3; // double

    float ABS3(time=1891, depth=150, lat=1, lon=1);
      :minimum = 1.7330796E-4f; // float
      :maximum = 0.88370377f; // float
      :_FillValue = 1.0E35f; // float
      :units = "Normalized counts";
      :long_name = "Transducer 3 burst mean backscatter amplitude";
      :frequency = "0.5 Mhz";
      :transducer_offset_from_bottom = 1.3; // double

    float Sv1_1233(time=1891, depth=150, lat=1, lon=1);
      :_FillValue = 1.0E35f; // float
      :name = "Sv1";
      :units = "decibels (dB)";
      :long_name = "Transducer 1 burst mean backscatter strength";
      :frequency = "2.5 Mhz";
      :transducer_offset_from_bottom = 1.3; // double
      :epic_code = 1233.0; // double
      :minimum = 13.546918f; // float
      :maximum = 87.63731f; // float

    float Sv2_1234(time=1891, depth=150, lat=1, lon=1);
      :_FillValue = 1.0E35f; // float
      :name = "Sv2";
      :units = "decibels (dB)";
      :long_name = "Transducer 2 burst mean backscatter strength";
      :frequency = "4.0 Mhz";
      :transducer_offset_from_bottom = 1.3; // double
      :epic_code = 1234.0; // double
      :minimum = 13.3932295f; // float
      :maximum = 76.32641f; // float

    float Sv3_1235(time=1891, depth=150, lat=1, lon=1);
      :_FillValue = 1.0E35f; // float
      :name = "Sv3";
      :units = "decibels (dB)";
      :long_name = "Transducer 3 burst mean backscatter strength";
      :frequency = "0.5 Mhz";
      :transducer_offset_from_bottom = 1.3; // double
      :epic_code = 1235.0; // double
      :minimum = 21.08207f; // float
      :maximum = 95.25483f; // float

    float brange1(time=1891, lat=1, lon=1);
      :maximum = 1.3f; // float
      :minimum = 1.17f; // float
      :_FillValue = 1.0E35f; // float
      :units = "m";
      :long_name = "Transducer 1 range to boundary";
      :frequency = "2.5 Mhz";

    float brange2(time=1891, lat=1, lon=1);
      :minimum = 1.15f; // float
      :maximum = 1.28f; // float
      :_FillValue = 1.0E35f; // float
      :units = "m";
      :long_name = "Transducer 2 range to boundary";
      :frequency = "4.0 Mhz";

    float brange3(time=1891, lat=1, lon=1);
      :minimum = 1.18f; // float
      :maximum = 1.31f; // float
      :_FillValue = 1.0E35f; // float
      :units = "m";
      :long_name = "Transducer 3 range to boundary";
      :frequency = "0.5 Mhz";

    float P_1(time=1891, lat=1, lon=1);
      :_FillValue = 1.0E35f; // float
      :name = "P";
      :units = "decibar";
      :long_name = "Pressure (dbar)";
      :sensor_offset_from_bottom = 1.64; // double
      :epic_code = 1.0; // double
      :note = "Pressure data corrected using offset = -31.442 and scale factor = 2.00;";
      :minimum = 11.735314544677735; // double
      :maximum = 14.093808349609375; // double

    float Tx_1211(time=1891, lat=1, lon=1);
      :_FillValue = 1.0E35f; // float
      :name = "Tx";
      :units = "C";
      :long_name = "instrument Transducer Temp.";
      :sensor_offset_from_bottom = 1.64; // double
      :epic_code = 1211.0; // double
      :note = "Temperature data corrected using offset = 24.644 and scale factor = 1.00;";
      :minimum = 11.466940661621095; // double
      :maximum = 17.31936146850586; // double

    float Battery(time=1891, lat=1, lon=1);
      :note = "Battery data corrected using offset =  0.000 and scale factor = 2.00;";
      :minimum = 15.415351867675781; // double
      :maximum = 18.244173049926758; // double
      :_FillValue = 1.0E35f; // float
      :units = "Volts";
      :long_name = "Battery Voltage";

    float P_1ac(time=1891, lat=1, lon=1);
      :_FillValue = 1.0E35f; // float
      :name = "pressure (corrected for atmospheric)";
      :long_name = "pressure (corrected for atmospheric)";
      :standard_name = "sea_water_pressure_due_to_sea_water";
      :units = "dbar";
      :initial_instrument_height = 1.3, 1.3, 1.3; // double
      :minimum = 11.803002f; // float
      :maximum = 14.117977f; // float
      :note = "Corrected for variations in atmospheric pressure using local barometric pressure record";
      :_ChunkSizes = 1891U, 1U, 1U; // uint

  // global attributes:
  :SciPi = "J. Warner";
  :PROJECT = "USGS Coastal Marine Geology Program";
  :EXPERIMENT = "Matanzas Inlet Sediment Transport";
  :DESCRIPTION = "offshore site quadpod";
  :DATA_SUBTYPE = "MOORED";
  :DATA_ORIGIN = "USGS WHCMSC Sediment Transport Group";
  :COORD_SYSTEM = "GEOGRAPHIC";
  :Conventions = "PMEL/EPIC";
  :MOORING = "1112";
  :WATER_DEPTH = 14.9; // double
  :WATER_DEPTH_NOTE = "(meters), ship\'s echosounder";
  :latitude = 29.713267; // double
  :longitude = -81.2146; // double
  :magnetic_variation = -6.7; // double
  :Deployment_date = "24-Jan-2018";
  :Recovery_date = "13-Apr-2018";
  :platform_type = "large Quadpod bottom lander";
  :DRIFTER = 0.0; // double
  :POS_CONST = 0.0; // double
  :DEPTH_CONST = 0.0; // double
  :institution = "United States Geological Survey, Woods Hole Coastal and Marine Science Center";
  :institution_url = "http://woodshole.er.usgs.gov";
  :instnum = 3.0; // double
  :initial_instrument_height = 1.3, 1.3, 1.3; // double
  :pressure_sensor_height = 1.64; // double
  :ClockError = 507.0; // double
  :auxsampon = "y";
  :orientation = "down";
  :frequency = 2500000.0, 4000000.0, 500000.0; // double
  :BurstDuration = 2.0, 2.0, 2.0; // double
  :PingRate = 64.0; // double
  :NumPings = 65536.0; // double
  :nXducers = 3.0; // double
  :burst_count = 1891.0; // double
  :serial_number = "910-130";
  :bin_count = 150.0; // double
  :bin_size = 0.01, 0.01, 0.01; // double
  :sampling_rate = 2.0; // double
  :cdffile = "11123abss-raw.cdf";
  :CREATION_DATE = "18-Apr-2019 16:18:33";
  :DESCRIPT = "Aquascat ABS processed EPIC stats file";
  :DATA_TYPE = "ABS";
  :COMPOSITE = 0.0; // double
  :INST_TYPE = "Aquatec Aquascat ABS";
  :DATA_CMNT = "Instrument clock gained(+)/lost(-) 507 sec during deployment when compared to reference time, will need to be corrected in processed output netcdf files;";
  :samples_per_average = 2048.0; // double
  :DELTA_T = "3600";
  :VAR_FILL = 1.0E35f; // float
  :FILL_FLAG = 0.0; // double
  :VAR_DESC = "burst:bindist1:bindist2:bindist3:ABS1:ABS2:ABS3:Sv1_1233:Sv2_1234:Sv3_1235:brange1:brange2:brange3:P_1:Tx_1211:Battery";
  :start_time = "24-Jan-2018 17:08:13";
  :stop_time = "13-Apr-2018 11:00:17";
  :history = "Linear clock drift correction applied to time variables, Data burst averaged, converted to EPIC variables, and cropped data before deployment and after recovery by aqacdf2statsnc4; Converted to netCDF via Matlab by aqa2cdfNative4.m V 0.0; Raw data from Aquatec Aquascat1000 ABS translated to NetCDF4 by aqamat2cdfNative4";
  :DATA_NOTE = "This netCDF file contains burst averaged data from 3 ABS transducers.";
}