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Dataset Title:	ng497-20250718T0000
Institution:	Naval Oceanographic Office (Dataset ID: ng497-20250718T0000)
Range:	longitude = 142.98543 to 144.85652°E, latitude = 14.112978 to 17.59736°N, depth = -0.08903388 to 947.8729m, time = 2025-07-18T07:27:15Z to 2025-08-28T22:26:16Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form \| Files
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The Dataset Attribute Structure (.das) for this Dataset

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 18800001, 19101022;
    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 1.752823635e+9, 1.756419976e+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 14.112978263617462, 17.597359658837092;
    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 142.98542928704575, 144.8565241475049;
    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 -0.08903388, 947.87286;
    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 32.9271, 58.031002;
    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 1020.89966, 1031.7695;
    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";
    Byte actual_range 0, 0;
    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 14.114945, 17.594315;
    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 142.97299, 144.8429;
    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";
    Byte actual_range 0, 0;
    String comment "Slocum Glider NG497";
    String id "NG497";
    String instrument "instrument_ctd";
    String ioos_category "Identifier";
    String long_name "Platform Metadata";
    String type "platform";
    String units "1";
  }
  precise_lat {
    Float64 _FillValue -999.0;
    Float64 actual_range 14.110669931586889, 17.605060401421404;
    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 142.98490247192302, 144.85950940864169;
    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 1.752822497e+9, 1.756423247e+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 -0.089999996, 955.75;
    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 33.5937, 35.214073;
    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 4.387, 30.2786;
    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 1.752829644e+9, 1.756404058e+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 -0.2236538529396057, 0.05163450166583061;
    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 -0.1480097472667694, 0.06563039869070053;
    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 _NCProperties "version=2,netcdf=4.7.0,hdf5=1.10.5,";
    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 "2025-08-28T23:46:47Z";
    String date_issued "2025-08-28T23:46:47Z";
    Float64 Easternmost_Easting 144.8565241475049;
    String featureType "TrajectoryProfile";
    String format_version "IOOS_Glider_NetCDF_v2.0.nc";
    Float64 geospatial_lat_max 17.597359658837092;
    Float64 geospatial_lat_min 14.112978263617462;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 144.8565241475049;
    Float64 geospatial_lon_min 142.98542928704575;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 947.8729;
    Float64 geospatial_vertical_min -0.08903388;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String gts_ingest "true";
    String history 
"2025-08-28T23:46:47Z Processing/QC using SPECTRE3
2025-11-03T21:48:05Z (local files)
2025-11-03T21:48:05Z http://gliders.ioos.us/tabledap/ng497-20250718T0000.das";
    String id "NG497-20250718T0000";
    String infoUrl "https://gliders.ioos.us/erddap/";
    String institution "Naval Oceanographic Office";
    String ioos_dac_checksum "d41d8cd98f00b204e9800998ecf8427e";
    String ioos_dac_completed "False";
    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 17.597359658837092;
    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 "Philippine Sea";
    String source "Observational data from a profiling glider";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 14.112978263617462;
    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 "2025-08-28T22:26:16Z";
    String time_coverage_start "2025-07-18T07:27:15Z";
    String title "ng497-20250718T0000";
    Float64 Westernmost_Easting 142.98542928704575;
  }
}
Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link)
Data Access Protocol (DAP) (external link)
and its selection constraints (external link)
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.
(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.
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.