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  <attribute name="acknowledgement" value="Funded by National Oceanic and Atmospheric Administration (NOAA): Global Ocean Monitoring and Observing (GOMO) Program, and Integrated Ocean Observing System. Supported by Instrument Development Group - Scripps Institution of Oceanography" />
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  <attribute name="contributor_name" value="Daniel Rudnick, Guilherme Castelao" />
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  <attribute name="history" value="readsat - 2021-12-11T04:23:12Z, fixgps3 - 2021-12-11T04:23:12Z, calcvelsat - 2021-12-11T04:23:12Z, autoqcctd - 2021-12-11T04:23:12Z, calox - 2021-12-11T04:23:12Z, calfchl - 2021-12-11T04:23:12Z, adpsat - 2021-12-11T04:23:13Z&#xA;2024-09-19T15:28:02Z (local files)&#xA;2024-09-19T15:28:02Z http://localhost:8080/erddap/tabledap/sp041-20211130T1827.ncCF" />
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  <attribute name="infoUrl" value="https://gliders.ioos.us/erddap/" />
  <attribute name="institution" value="Scripps Institution of Oceanography" />
  <attribute name="instrument" value="Sea-Bird 41CP" />
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  <attribute name="keywords_vocabulary" value="GCMD Science Keywords" />
  <attribute name="license" value="Creative Commons Attribution 4.0 International Public License (https://creativecommons.org/licenses/by/4.0/)" />
  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0, COARDS, CF-1.6" />
  <attribute name="metadata_link" value="http://spraydata.ucsd.edu" />
  <attribute name="naming_authority" value="edu.ucsd.scripps" />
  <attribute name="network" value="California Underwater Glider Network" />
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  <attribute name="platform" value="sp041" />
  <attribute name="platform_institution" value="Scripps" />
  <attribute name="platform_type" value="Spray Glider" />
  <attribute name="processing_level" value="Automatic quality control procedures were applied. For maximum quality assurance, use the delayed mode version of this dataset once it is available." />
  <attribute name="product_version" value="v3" />
  <attribute name="project" value="California Underwater Glider Network - Line 90" />
  <attribute name="publisher_email" value="idgdata@ucsd.edu" />
  <attribute name="publisher_institution" value="University of California - San Diego; Scripps Institution of Oceanography" />
  <attribute name="publisher_name" value="Instrument Development Group" />
  <attribute name="publisher_type" value="group" />
  <attribute name="publisher_url" value="https://spraydata.ucsd.edu" />
  <attribute name="references" value="Rudnick, D. L. (2016). Ocean research enabled by underwater gliders. Annual review of marine science, 8, 519-541, doi:10.1146/annurev-marine-122414-033913&#xA; Rudnick, D. L., Davis, R. E., &amp; Sherman, J. T. (2016). Spray Underwater Glider Operations. Journal of Atmospheric and Oceanic Technology, 33(6), 1113-1122, doi:10.1175/JTECH-D-15-0252.1&#xA; Rudnick, D. L., Davis, R. E., Eriksen, C. C., Fratantoni, D. M., &amp; Perry, M. J. (2004). Underwater gliders for ocean research. Marine Technology Society Journal, 38(2), 73-84, doi:10.4031/002533204787522703&#xA; Sherman, J., Davis, R. E., Owens, W. B., &amp; Valdes, J. (2001). The autonomous underwater glider 'Spray'. IEEE Journal of oceanic Engineering, 26(4), 437-446, doi:10.1109/48.972076" />
  <attribute name="sea_name" value="Coastal Waters of California" />
  <attribute name="site" value="CUGN line 90" />
  <attribute name="source" value="Observational data from a profiling underwater glider." />
  <attribute name="sourceUrl" value="(local files)" />
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  <attribute name="summary" value="The overarching goal of the California Underwater Glider Network is to sustain baseline observations of climate variability off the coast of California. The technical approach is to deploy autonomous underwater gliders in a network to provide real-time data.&#xA;The CUGN uses Spray underwater gliders making repeated dives from the surface to 500 m and back, repeating the cycle every 3 hours, and traveling 3 km in the horizontal during that time. The CUGN includes gliders on three of the traditional cross-shore CalCOFI lines: line 66.7 off Monterey Bay, line 80 off Point Conception, and line 90 off Dana Point.&#xA; The glider missions typically last about 100 days, and cover over 2000 km, thus providing 4-6 sections on lines extending 300-500 km offshore. Since 2005 the CUGN has covered 200,000 km over ground in 28 glider-years, while doing 90,000 dives." />
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  <attribute name="time_coverage_start" value="2021-11-30T19:45:45Z" />
  <attribute name="title" value="sp041-20211130T1827" />
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  <attribute name="xglider_type" value="profileObs" />
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    <attribute name="metadata_creation" value="2026-03-14" />
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    <attribute name="_Encoding" value="ISO-8859-1" />
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    <attribute name="long_name" value="Profile ID" />
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    <attribute name="colorBarMaximum" type="double" value="0.5" />
    <attribute name="colorBarMinimum" type="double" value="-0.5" />
    <attribute name="comment" value="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." />
    <attribute name="coordinates" value="lon_uv lat_uv time_uv" />
    <attribute name="coverage_content_type" value="physicalMeasurement" />
    <attribute name="ioos_category" value="Currents" />
    <attribute name="long_name" value="Depth-averaged Eastward Sea Water Velocity" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="eastward_sea_water_velocity" />
    <attribute name="units" value="m s-1" />
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    <attribute name="ancillary_variables" value="v_qc" />
    <attribute name="colorBarMaximum" type="double" value="0.5" />
    <attribute name="colorBarMinimum" type="double" value="-0.5" />
    <attribute name="comment" value="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." />
    <attribute name="coordinates" value="lon_uv lat_uv time_uv" />
    <attribute name="coverage_content_type" value="physicalMeasurement" />
    <attribute name="ioos_category" value="Currents" />
    <attribute name="long_name" value="Depth-averaged Northward Sea Water Velocity" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="northward_sea_water_velocity" />
    <attribute name="units" value="m s-1" />
    <attribute name="valid_max" type="double" value="10.0" />
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  <variable name="trajectoryIndex" shape="profile" type="int">
    <attribute name="instance_dimension" value="trajectory" />
    <attribute name="ioos_category" value="Identifier" />
    <attribute name="long_name" value="The trajectory to which this profile is associated." />
  </variable>
  <variable name="rowSize" shape="profile" type="int">
    <attribute name="ioos_category" value="Identifier" />
    <attribute name="long_name" value="Number of Observations for this Profile" />
    <attribute name="sample_dimension" value="obs" />
  </variable>
  <variable name="chlorophyll_a" shape="obs" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="actual_range" type="double" value="0.12 2.202" />
    <attribute name="comment" value="Chlorophyll-a concentration estimated from fluorescence measurements." />
    <attribute name="coordinates" value="time latitude longitude depth" />
    <attribute name="coverage_content_type" value="physicalMeasurement" />
    <attribute name="instrument" value="instrument_fchl" />
    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="Chlorophyll-a concentration" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="mass_concentration_of_chlorophyll_a_in_sea_water" />
    <attribute name="units" value="mg/m3" />
  </variable>
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    <attribute name="coordinates" value="time latitude longitude depth" />
    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="chlorophyll_a Quality Flag" />
  </variable>
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    <attribute name="actual_range" type="float" value="3.33903 4.413546" />
    <attribute name="ancillary_variables" value="conductivity_qc qartod_conductivity_flat_line_flag qartod_conductivity_gross_range_flag qartod_conductivity_rate_of_change_flag qartod_conductivity_spike_flag qartod_conductivity_primary_flag qartod_conductivity_flat_line_flag qartod_conductivity_gross_range_flag qartod_conductivity_rate_of_change_flag qartod_conductivity_spike_flag qartod_conductivity_primary_flag" />
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    <attribute name="coverage_content_type" value="physicalMeasurement" />
    <attribute name="instrument" value="instrument_ctd" />
    <attribute name="ioos_category" value="Salinity" />
    <attribute name="long_name" value="Sea Water Electrical Conductivity" />
    <attribute name="observation_type" value="measured" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="sea_water_electrical_conductivity" />
    <attribute name="units" value="S m-1" />
    <attribute name="valid_max" type="float" value="10.0" />
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    <attribute name="coordinates" value="time latitude longitude depth" />
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    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="conductivity Quality Flag" />
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  <variable name="density" shape="obs" type="float">
    <attribute name="_FillValue" type="float" value="-999.0" />
    <attribute name="actual_range" type="float" value="1024.046 1029.325" />
    <attribute name="ancillary_variables" value="density_qc qartod_density_flat_line_flag qartod_density_gross_range_flag qartod_density_rate_of_change_flag qartod_density_spike_flag qartod_density_primary_flag qartod_density_flat_line_flag qartod_density_gross_range_flag qartod_density_rate_of_change_flag qartod_density_spike_flag qartod_density_primary_flag" />
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    <attribute name="instrument" value="instrument_ctd" />
    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="Sea Water Density" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="sea_water_density" />
    <attribute name="units" value="kg m-3" />
    <attribute name="valid_max" type="float" value="1040.0" />
    <attribute name="valid_min" type="float" value="1015.0" />
  </variable>
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    <attribute name="coordinates" value="time latitude longitude depth" />
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    <attribute name="flag_values" type="int" value="0 1 2 3 4 5 6 7 8 9" />
    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="density Quality Flag" />
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    <attribute name="coordinates" value="time latitude longitude depth" />
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    <attribute name="flag_values" type="int" value="0 1 2 3 4 5 6 7 8 9" />
    <attribute name="ioos_category" value="Other" />
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    <attribute name="standard_name" value="depth status_flag" />
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    <attribute name="coordinates" value="time latitude longitude depth" />
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    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="Dissolved oxygen" />
    <attribute name="platform" value="platform" />
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    <attribute name="units" value="micromol kg-1" />
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    <attribute name="comment" value="pumped CTD" />
    <attribute name="coordinates" value="time latitude longitude depth" />
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    <attribute name="long_name" value="CTD Metadata" />
    <attribute name="make_model" value="Seabird SBE 41CP" />
    <attribute name="platform" value="platform" />
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    <attribute name="coordinates" value="time latitude longitude depth" />
    <attribute name="ioos_category" value="Other" />
    <attribute name="platform" value="platform" />
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    <attribute name="type" value="instrument" />
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    <attribute name="ioos_category" value="Other" />
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    <attribute name="long_name" value="temperature Quality Flag" />
    <attribute name="standard_name" value="sea_water_temperature status_flag" />
    <attribute name="valid_max" type="byte" value="9" />
    <attribute name="valid_min" type="byte" value="0" />
  </variable>
  <variable name="time_qc" shape="obs" type="byte">
    <attribute name="_FillValue" type="byte" value="-127" />
    <attribute name="actual_range" type="byte" value="0 0" />
    <attribute name="coordinates" value="time latitude longitude depth" />
    <attribute name="flag_meanings" value="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" />
    <attribute name="flag_values" type="int" value="0 1 2 3 4 5 6 7 8 9" />
    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="time Quality Flag" />
    <attribute name="standard_name" value="time status_flag" />
    <attribute name="valid_max" type="byte" value="9" />
    <attribute name="valid_min" type="byte" value="0" />
  </variable>
  <variable name="time_uv_qc" shape="obs" type="byte">
    <attribute name="_FillValue" type="byte" value="-127" />
    <attribute name="actual_range" type="byte" value="0 0" />
    <attribute name="coordinates" value="time latitude longitude depth" />
    <attribute name="flag_meanings" value="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" />
    <attribute name="flag_values" type="int" value="0 1 2 3 4 5 6 7 8 9" />
    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="time_uv Quality Flag" />
    <attribute name="standard_name" value="time status_flag" />
    <attribute name="valid_max" type="byte" value="9" />
    <attribute name="valid_min" type="byte" value="0" />
  </variable>
  <variable name="u_qc" shape="obs" type="byte">
    <attribute name="_FillValue" type="byte" value="-127" />
    <attribute name="actual_range" type="byte" value="0 0" />
    <attribute name="coordinates" value="time latitude longitude depth" />
    <attribute name="flag_meanings" value="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" />
    <attribute name="flag_values" type="int" value="0 1 2 3 4 5 6 7 8 9" />
    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="Quality Flag" />
    <attribute name="standard_name" value="eastward_sea_water_velocity status_flag" />
    <attribute name="valid_max" type="byte" value="9" />
    <attribute name="valid_min" type="byte" value="0" />
  </variable>
  <variable name="v_qc" shape="obs" type="byte">
    <attribute name="_FillValue" type="byte" value="-127" />
    <attribute name="actual_range" type="byte" value="0 0" />
    <attribute name="coordinates" value="time latitude longitude depth" />
    <attribute name="flag_meanings" value="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" />
    <attribute name="flag_values" type="int" value="0 1 2 3 4 5 6 7 8 9" />
    <attribute name="ioos_category" value="Other" />
    <attribute name="long_name" value="Quality Flag" />
    <attribute name="standard_name" value="northward_sea_water_velocity status_flag" />
    <attribute name="valid_max" type="byte" value="9" />
    <attribute name="valid_min" type="byte" value="0" />
  </variable>
  <variable name="trajectory" shape="trajectory trajectory_strlen" type="char">
    <attribute name="_Encoding" value="ISO-8859-1" />
    <attribute name="cf_role" value="trajectory_id" />
    <attribute name="comment" value="A trajectory is one deployment of a glider." />
    <attribute name="ioos_category" value="Identifier" />
    <attribute name="long_name" value="Trajectory Name" />
  </variable>
  <variable name="time" shape="profile" type="double">
    <attribute name="_CoordinateAxisType" value="Time" />
    <attribute name="actual_range" type="double" value="1.638301545E9 1.6400979E9" />
    <attribute name="ancillary_variables" value="profile_time_qc" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="comment" value="Timestamp corresponding to the mid-point of the profile." />
    <attribute name="ioos_category" value="Time" />
    <attribute name="long_name" value="Profile Time" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="time" />
    <attribute name="time_origin" value="01-JAN-1970 00:00:00" />
    <attribute name="units" value="seconds since 1970-01-01T00:00:00Z" />
  </variable>
  <variable name="latitude" shape="profile" type="double">
    <attribute name="_CoordinateAxisType" value="Lat" />
    <attribute name="_FillValue" type="double" value="-999.0" />
    <attribute name="actual_range" type="double" value="31.476725 33.33155" />
    <attribute name="ancillary_variables" value="profile_lat_qc" />
    <attribute name="axis" value="Y" />
    <attribute name="colorBarMaximum" type="double" value="90.0" />
    <attribute name="colorBarMinimum" type="double" value="-90.0" />
    <attribute name="comment" value="Value is interpolated to provide an estimate of the latitude at the mid-point of the profile." />
    <attribute name="ioos_category" value="Location" />
    <attribute name="long_name" value="Profile Latitude" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="latitude" />
    <attribute name="units" value="degrees_north" />
    <attribute name="valid_max" type="double" value="90.0" />
    <attribute name="valid_min" type="double" value="-90.0" />
  </variable>
  <variable name="longitude" shape="profile" type="double">
    <attribute name="_CoordinateAxisType" value="Lon" />
    <attribute name="_FillValue" type="double" value="-999.0" />
    <attribute name="actual_range" type="double" value="-121.95815 -117.306975" />
    <attribute name="ancillary_variables" value="profile_lon_qc" />
    <attribute name="axis" value="X" />
    <attribute name="colorBarMaximum" type="double" value="180.0" />
    <attribute name="colorBarMinimum" type="double" value="-180.0" />
    <attribute name="comment" value="Value is interpolated to provide an estimate of the longitude at the mid-point of the profile." />
    <attribute name="ioos_category" value="Location" />
    <attribute name="long_name" value="Profile Longitude" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="longitude" />
    <attribute name="units" value="degrees_east" />
    <attribute name="valid_max" type="double" value="180.0" />
    <attribute name="valid_min" type="double" value="-180.0" />
  </variable>
  <variable name="lat_uv" shape="profile" type="double">
    <attribute name="_FillValue" type="double" value="-999.0" />
    <attribute name="actual_range" type="double" value="31.478749999999998 33.331599999999995" />
    <attribute name="ancillary_variables" value="lat_uv_qc" />
    <attribute name="colorBarMaximum" type="double" value="90.0" />
    <attribute name="colorBarMinimum" type="double" value="-90.0" />
    <attribute name="comment" value="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." />
    <attribute name="ioos_category" value="Location" />
    <attribute name="long_name" value="Depth-averaged Latitude" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="latitude" />
    <attribute name="units" value="degrees_north" />
    <attribute name="valid_max" type="double" value="90.0" />
    <attribute name="valid_min" type="double" value="-90.0" />
    <attribute name="_CoordinateAxisType" value="Lat" />
  </variable>
  <variable name="lon_uv" shape="profile" type="double">
    <attribute name="_FillValue" type="double" value="-999.0" />
    <attribute name="actual_range" type="double" value="-121.9525 -117.30574999999999" />
    <attribute name="ancillary_variables" value="lon_uv_qc" />
    <attribute name="colorBarMaximum" type="double" value="180.0" />
    <attribute name="colorBarMinimum" type="double" value="-180.0" />
    <attribute name="comment" value="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." />
    <attribute name="ioos_category" value="Location" />
    <attribute name="long_name" value="Depth-averaged Longitude" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="platform" value="platform" />
    <attribute name="standard_name" value="longitude" />
    <attribute name="units" value="degrees_east" />
    <attribute name="valid_max" type="double" value="180.0" />
    <attribute name="valid_min" type="double" value="-180.0" />
    <attribute name="_CoordinateAxisType" value="Lon" />
  </variable>
  <variable name="time_uv" shape="profile" type="double">
    <attribute name="actual_range" type="double" value="1.63830093E9 1.64009544E9" />
    <attribute name="ancillary_variables" value="time_uv_qc" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="comment" value="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." />
    <attribute name="ioos_category" value="Time" />
    <attribute name="long_name" value="Depth-averaged Time" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="standard_name" value="time" />
    <attribute name="time_origin" value="01-JAN-1970 00:00:00" />
    <attribute name="units" value="seconds since 1970-01-01T00:00:00Z" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="depth" shape="obs" type="float">
    <attribute name="_CoordinateAxisType" value="Height" />
    <attribute name="_CoordinateZisPositive" value="down" />
    <attribute name="_FillValue" type="float" value="-999.0" />
    <attribute name="actual_range" type="float" value="0.9929903 502.6679" />
    <attribute name="ancillary_variables" value="depth_qc" />
    <attribute name="axis" value="Z" />
    <attribute name="colorBarMaximum" type="double" value="2000.0" />
    <attribute name="colorBarMinimum" type="double" value="0.0" />
    <attribute name="colorBarPalette" value="OceanDepth" />
    <attribute name="coverage_content_type" value="coordinate" />
    <attribute name="instrument" value="instrument_ctd" />
    <attribute name="ioos_category" value="Location" />
    <attribute name="long_name" value="Depth" />
    <attribute name="observation_type" value="calculated" />
    <attribute name="platform" value="platform" />
    <attribute name="positive" value="down" />
    <attribute name="reference_datum" value="sea-surface" />
    <attribute name="standard_name" value="depth" />
    <attribute name="units" value="m" />
    <attribute name="valid_max" type="float" value="2000.0" />
    <attribute name="valid_min" type="float" value="0.0" />
  </variable>
  <variable name="precise_time" shape="obs" type="double">
    <attribute name="actual_range" type="double" value="1.6382997E9 1.64010036E9" />
    <attribute name="ancillary_variables" value="time_qc" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="comment" value="Timestamp at each point in the time-series" />
    <attribute name="coordinates" value="time latitude longitude depth" />
    <attribute name="coverage_content_type" value="coordinate" />
    <attribute name="ioos_category" value="Time" />
    <attribute name="long_name" value="Precise Time" />
    <attribute name="observation_type" value="measured" />
    <attribute name="standard_name" value="time" />
    <attribute name="time_origin" value="01-JAN-1970 00:00:00" />
    <attribute name="units" value="seconds since 1970-01-01T00:00:00Z" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
