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| Dataset Title: | ng644-20230614T0957
       
       
      
     | 
  
| Institution: | Naval Oceanographic Office (Dataset ID: ng644-20230614T0957) | 
| Information: | Summary  
    | License  
     | FGDC
     | ISO 19115
     | Metadata
     | Background 
     | Subset
     | Files
     | Make a graph
 | 
  
Attributes {
 s {
  trajectory {
    String cf_role "trajectory_id";
    String comment "A trajectory is one deployment of a glider.";
    String ioos_category "Identifier";
    String long_name "Trajectory Name";
  }
  wmo_id {
    String ioos_category "Identifier";
    String long_name "WMO ID";
  }
  profile_id {
    Int32 _FillValue -999;
    Int32 actual_range 256010501, 259001002;
    String cf_role "profile_id";
    String comment "Sequential profile number within the trajectory. This value is unique in each file that is part of a single trajectory/deployment.";
    String ioos_category "Identifier";
    String long_name "Profile ID";
    Int32 valid_max 2147483647;
    Int32 valid_min 1;
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.686736664e+9, 1.690893024e+9;
    String axis "T";
    String calendar "gregorian";
    String comment "Timestamp corresponding to the mid-point of the profile.";
    String ioos_category "Time";
    String long_name "Profile Time";
    String observation_type "calculated";
    String platform "platform";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue -999.0;
    Float64 actual_range 35.47201793532338, 36.81206901830283;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String comment "Value is interpolated to provide an estimate of the latitude at the mid-point of the profile.";
    String ioos_category "Location";
    String long_name "Profile Latitude";
    String observation_type "calculated";
    String platform "platform";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue -999.0;
    Float64 actual_range -125.21625911276949, -121.99739572259136;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String comment "Value is interpolated to provide an estimate of the longitude at the mid-point of the profile.";
    String ioos_category "Location";
    String long_name "Profile Longitude";
    String observation_type "calculated";
    String platform "platform";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 180.0;
    Float64 valid_min -180.0;
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 _FillValue -999.0;
    Float32 actual_range 0.019823764, 963.66693;
    String ancillary_variables "depth_qc";
    String axis "Z";
    Float64 colorBarMaximum 2000.0;
    Float64 colorBarMinimum 0.0;
    String colorBarPalette "OceanDepth";
    String instrument "instrument_ctd";
    String ioos_category "Location";
    String long_name "Depth";
    String observation_type "calculated";
    String platform "platform";
    String positive "down";
    String reference_datum "sea-surface";
    String standard_name "depth";
    String units "m";
    Float32 valid_max 2000.0;
    Float32 valid_min 0.0;
  }
  conductivity {
    Float32 _FillValue -999.0;
    Float32 actual_range 32.1295, 41.3719;
    String ancillary_variables "conductivity_qc";
    Float64 colorBarMaximum 9.0;
    Float64 colorBarMinimum 0.0;
    String instrument "instrument_ctd";
    String ioos_category "Salinity";
    String long_name "Sea Water Electrical Conductivity";
    String observation_type "measured";
    String platform "platform";
    String standard_name "sea_water_electrical_conductivity";
    String units "S m-1";
    Float32 valid_max 10.0;
    Float32 valid_min 0.0;
  }
  conductivity_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "conductivity Quality flag";
    String standard_name "sea_water_electrical_conductivity status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  density {
    Float32 _FillValue -999.0;
    Float32 actual_range 1022.99713, 1031.878;
    String ancillary_variables "density_qc";
    Float64 colorBarMaximum 1032.0;
    Float64 colorBarMinimum 1020.0;
    String instrument "instrument_ctd";
    String ioos_category "Other";
    String long_name "Sea Water Density";
    String observation_type "calculated";
    String platform "platform";
    String standard_name "sea_water_density";
    String units "kg m-3";
    Float32 valid_max 1040.0;
    Float32 valid_min 1015.0;
  }
  density_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "density Quality flag";
    String standard_name "sea_water_density status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  depth_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "depth Quality flag";
    String standard_name "depth status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  instrument_ctd {
    Byte _FillValue 127;
    String _Unsigned "false";
    String comment "pumped CTD";
    String ioos_category "Identifier";
    String long_name "CTD Metadata";
    String plaform "platform";
    String type "platform";
    String units "1";
  }
  lat_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 8;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "latitude Quality flag";
    String standard_name "latitude status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  lat_uv {
    Float64 _FillValue -999.0;
    Float64 actual_range 18.07424, 36.80753;
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String comment "The depth-averaged current is an estimate of the net current measured while the glider is underwater. The value is calculated over the entire underwater segment, which may consist of 1 or more dives.";
    String ioos_category "Location";
    String long_name "Depth-averaged Latitude";
    String observation_type "calculated";
    String platform "platform";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
  lat_uv_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 8, 8;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "lat_uv Quality flag";
    String standard_name "latitude status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  lon_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 8;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "longitude Quality flag";
    String standard_name "longitude status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  lon_uv {
    Float64 _FillValue -999.0;
    Float64 actual_range -125.213205, -63.07666;
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String comment "The depth-averaged current is an estimate of the net current measured while the glider is underwater. The value is calculated over the entire underwater segment, which may consist of 1 or more dives.";
    String ioos_category "Location";
    String long_name "Depth-averaged Longitude";
    String observation_type "calculated";
    String platform "platform";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 180.0;
    Float64 valid_min -180.0;
  }
  lon_uv_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 8, 8;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "lon_uv Quality flag";
    String standard_name "longitude status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  platform {
    Byte _FillValue 127;
    String _Unsigned "false";
    String comment "Slocum Glider NG644";
    String id "NG644";
    String instrument "instrument_ctd";
    String ioos_category "Identifier";
    String long_name "Platform Metadata";
    String type "platform";
    String units "1";
    String wmo_id "4803936";
  }
  precise_lat {
    Float64 _FillValue -999.0;
    Float64 actual_range 35.46805, 36.8120996672213;
    String ancillary_variables "lat_qc";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String comment "Interpolated latitude at each point in the time-series";
    String coordinate_reference_frame "urn:ogc:crs:EPSG::4326";
    String ioos_category "Location";
    String long_name "Precise Latitude";
    String observation_type "measured";
    String platform "platform";
    String reference "WGS84";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
  precise_lon {
    Float64 _FillValue -999.0;
    Float64 actual_range -125.22429503333333, -121.99595;
    String ancillary_variables "lon_qc";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String comment "Interpolated longitude at each point in the time-series";
    String coordinate_reference_frame "urn:ogc:crs:EPSG::4326";
    String ioos_category "Location";
    String long_name "Precise Longitude";
    String observation_type "measured";
    String platform "platform";
    String reference "WGS84";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 180.0;
    Float64 valid_min -180.0;
  }
  precise_time {
    Float64 actual_range 1.686732366e+9, 1.690893685e+9;
    String ancillary_variables "time_qc";
    String calendar "gregorian";
    String comment "Timestamp at each point in the time-series";
    String ioos_category "Time";
    String long_name "Precise Time";
    String observation_type "measured";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  pressure {
    Float32 _FillValue -999.0;
    Float32 actual_range 0.020000001, 974.92;
    String ancillary_variables "pressure_qc";
    Float64 colorBarMaximum 2000.0;
    Float64 colorBarMinimum 0.0;
    String instrument "instrument_ctd";
    String ioos_category "Pressure";
    String long_name "Sea Water Pressure";
    String observation_type "measured";
    String platform "platform";
    String positive "down";
    String reference_datum "sea-surface";
    String standard_name "sea_water_pressure";
    String units "dbar";
    Float32 valid_max 2000.0;
    Float32 valid_min 0.0;
  }
  pressure_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "pressure Quality flag";
    String standard_name "sea_water_pressure status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  profile_lat_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 8, 8;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "profile_lat Quality flag";
    String standard_name "latitude status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  profile_lon_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 8, 8;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "profile_lon Quality flag";
    String standard_name "longitude status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  profile_time_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "profile_time Quality flag";
    String standard_name "time status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qartod_conductivity_flat_line_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_electrical_conductivity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "flat_line_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_conductivity_gross_range_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Gross Range Test for sea_water_electrical_conductivity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "gross_range_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_conductivity_primary_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Primary Flag for sea_water_electrical_conductivity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "aggregate_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_conductivity_rate_of_change_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Rate of Change Test for sea_water_electrical_conductivity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "rate_of_change_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_conductivity_spike_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Spike Test for sea_water_electrical_conductivity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "spike_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_density_flat_line_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_density";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "flat_line_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_density_gross_range_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_density";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "gross_range_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_density_primary_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_density";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "aggregate_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_density_rate_of_change_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_density";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "rate_of_change_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_density_spike_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_density";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "spike_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_location_test_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Location Test for longitude and latitude";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "location_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_pressure_flat_line_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_pressure";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "flat_line_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_pressure_gross_range_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_pressure";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "gross_range_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_pressure_primary_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_pressure";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "aggregate_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_pressure_rate_of_change_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_pressure";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "rate_of_change_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_pressure_spike_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_pressure";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "spike_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_salinity_flat_line_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_practical_salinity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "flat_line_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_salinity_gross_range_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_practical_salinity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "gross_range_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_salinity_primary_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_practical_salinity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "aggregate_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_salinity_rate_of_change_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_practical_salinity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "rate_of_change_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_salinity_spike_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_practical_salinity";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "spike_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_temperature_flat_line_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_temperature";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "flat_line_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_temperature_gross_range_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_temperature";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "gross_range_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_temperature_primary_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_temperature";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "aggregate_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_temperature_rate_of_change_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_temperature";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "rate_of_change_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  qartod_temperature_spike_flag {
    Byte _FillValue 2;
    String _Unsigned "false";
    String dac_comment "QARTOD TESTS NOT RUN";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "QARTOD Flat Line Test for sea_water_temperature";
    String references "https://gliders.ioos.us/files/Manual-for-QC-of-Glider-Data_05_09_16.pdf";
    String standard_name "spike_test_quality_flag";
    String units "1";
    Byte valid_max 9;
    Byte valid_min 1;
  }
  salinity {
    Float32 _FillValue -999.0;
    Float32 actual_range 30.882532, 34.468834;
    String ancillary_variables "salinity_qc";
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 30.0;
    String instrument "instrument_ctd";
    String ioos_category "Salinity";
    String long_name "Sea Water Practical Salinity";
    String observation_type "calculated";
    String platform "platform";
    String standard_name "sea_water_practical_salinity";
    String units "1";
    Float32 valid_max 40.0;
    Float32 valid_min 0.0;
  }
  salinity_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "salinity Quality flag";
    String standard_name "sea_water_salinity status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  temperature {
    Float32 _FillValue -999.0;
    Float32 actual_range 3.7915, 15.9332;
    String ancillary_variables "temperature_qc";
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String instrument "instrument_ctd";
    String ioos_category "Temperature";
    String long_name "Sea Water Temperature";
    String observation_type "measured";
    String platform "platform";
    String standard_name "sea_water_temperature";
    String units "degrees_C";
    Float32 valid_max 40.0;
    Float32 valid_min -5.0;
  }
  temperature_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "temperature Quality flag";
    String standard_name "sea_water_temperature status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  time_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "Time Quality flag";
    String standard_name "time status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  time_uv {
    Float64 actual_range 1.686740675e+9, 1.690892117e+9;
    String calendar "gregorian";
    String comment "The depth-averaged current is an estimate of the net current measured while the glider is underwater. The value is calculated over the entire underwater segment, which may consist of 1 or more dives.";
    String ioos_category "Time";
    String long_name "Depth-averaged Time";
    String observation_type "calculated";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  time_uv_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "time_uv Quality flag";
    String standard_name "time status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  u {
    Float64 _FillValue -999.0;
    Float64 actual_range -0.20163922011852264, 0.21351481974124908;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String comment "The depth-averaged current is an estimate of the net current measured while the glider is underwater. The value is calculated over the entire underwater segment, which may consist of 1 or more dives.";
    String coordinates "lon_uv lat_uv time_uv";
    String ioos_category "Currents";
    String long_name "Depth-averaged Eastward Sea Water Velocity";
    String observation_type "calculated";
    String platform "platform";
    String standard_name "eastward_sea_water_velocity";
    String units "m s-1";
    Float64 valid_max 10.0;
    Float64 valid_min -10.0;
  }
  u_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 8, 8;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "u Quality flag";
    String standard_name "eastward_sea_water_velocity status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  v {
    Float64 _FillValue -999.0;
    Float64 actual_range -0.16820934414863586, 0.09027127176523209;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String comment "The depth-averaged current is an estimate of the net current measured while the glider is underwater. The value is calculated over the entire underwater segment, which may consist of 1 or more dives.";
    String coordinates "lon_uv lat_uv time_uv";
    String ioos_category "Currents";
    String long_name "Depth-averaged Northward Sea Water Velocity";
    String observation_type "calculated";
    String platform "platform";
    String standard_name "northward_sea_water_velocity";
    String units "m s-1";
    Float64 valid_max 10.0;
    Float64 valid_min -10.0;
  }
  v_qc {
    Byte _FillValue -127;
    String _Unsigned "false";
    Byte actual_range 8, 8;
    String flag_meanings "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used not_used interpolated_value missing_value";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9;
    String ioos_category "Other";
    String long_name "v Quality flag";
    String standard_name "northward_sea_water_velocity status_flag";
    Byte valid_max 9;
    Byte valid_min 0;
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TrajectoryProfile";
    String cdm_profile_variables "time_uv,lat_uv,lon_uv,u,v,profile_id,time,latitude,longitude";
    String cdm_trajectory_variables "trajectory,wmo_id";
    String Conventions "Unidata Dataset Discovery v1.0, COARDS, CF-1.6";
    String creator_email "glider@ocean.navo.navy.mil";
    String creator_name "Glider Operations Center";
    String date_created "2023-08-01T11:04:02Z";
    String date_issued "2023-08-01T11:04:02Z";
    Float64 Easternmost_Easting -121.99739572259136;
    String featureType "TrajectoryProfile";
    String format_version "IOOS_Glider_NetCDF_v2.0.nc";
    Float64 geospatial_lat_max 36.81206901830283;
    Float64 geospatial_lat_min 35.47201793532338;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -121.99739572259136;
    Float64 geospatial_lon_min -125.21625911276949;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 963.6669;
    Float64 geospatial_vertical_min 0.01982376;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String gts_ingest "true";
    String history 
"2023-08-01T11:04:02Z Processing/QC using SPECTRE3
2025-11-04T02:43:48Z (local files)
2025-11-04T02:43:48Z http://gliders.ioos.us/erddap/tabledap/ng644-20230614T0957.html";
    String id "NG644-20230316T0000";
    String infoUrl "https://gliders.ioos.us/erddap/";
    String institution "Naval Oceanographic Office";
    String ioos_dac_checksum "34fdec50c858e27994e57c4bed301ee1";
    String ioos_dac_completed "True";
    String keywords "AUVS > Autonomous Underwater Vehicles, Earth Science > Oceans > Ocean Pressure > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Conductivity, Earth Science > Oceans > Salinity/Density > Density, Earth Science > Oceans > Salinity/Density > Salinity, glider, In Situ Ocean-based platforms > Seaglider, Slocum, Spray, trajectory, underwater glider, water, wmo";
    String keywords_vocabularity "GCMD Science Keywords";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"*** UNCLASSIFIED PUBLIC DOMAIN *** DISTRIBUTION STATEMENT A: APPROVED FOR PUBLIC RELEASE;
 DISTRIBUTION IS UNLIMITED.";
    String Metadata_Conventions "Unidata Dataset Discovery v1.0, COARDS, CF-1.6";
    String naming_authority "mil.navy.navo";
    Float64 Northernmost_Northing 36.81206901830283;
    String platform_type "Slocum Glider";
    String processing_level "Data QC'd by SPECTRE using Argo QC methodology";
    String project "NAVOCEANO";
    String publisher_email "glider@ocean.navo.navy.mil";
    String publisher_name "Glider Operations Center";
    String sea_name "North Pacific Ocean";
    String source "Observational data from a profiling glider";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 35.47201793532338;
    String standard_name_vocabulary "Standard Name Table (v73, 23 June 2020)";
    String subsetVariables "wmo_id,trajectory,profile_id,time,latitude,longitude";
    String summary "Slocum Glider data collected by Naval Oceanographic Office for public release purposes.";
    String time_coverage_end "2023-08-01T12:30:24Z";
    String time_coverage_start "2023-06-14T09:57:44Z";
    String title "ng644-20230614T0957";
    Float64 Westernmost_Easting -125.21625911276949;
  }
}
  Data Access Protocol (DAP)
 and its
  selection constraints
.
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names,
   followed by a collection of
  constraints (e.g., variable<value),
  each preceded by '&' (which is interpreted as "AND").
For details, see the tabledap Documentation.