netcdf frf/oceanography/waterlevel/eopNoaaTide/eopNoaaTide.ncml {
  dimensions:
    station_name_length = 21;
    time = 3900240;
  variables:
    double latitude;
      :standard_name = "latitude";
      :long_name = "Latitude";
      :short_name = "Lat";
      :_FillValue = -999.99; // double
      :units = "degrees_north";

    double longitude;
      :_FillValue = -999.99; // double
      :units = "degrees_east";
      :standard_name = "longitude";
      :long_name = "Longitude";
      :short_name = "Lon";

    char station_name(station_name_length=21);
      :units = ;
      :long_name = "station name";
      :short_name = "station_name";
      :cf_role = "timeseries_id";
      :_ChunkSizes = 21U; // uint

    double time(time=3900240);
      :_FillValue = -999.99; // double
      :units = "seconds since 1970-01-01 00:00:00";
      :standard_name = "time";
      :long_name = "UTC Sample Time";
      :calendar = "gregorian";
      :short_name = "time";
      :_ChunkSizes = 1000U; // uint

    double residualWaterLevel(time=3900240);
      :units = "m";
      :long_name = "Water Level Setup, measured - predicted";
      :description = "Water Level Setup/Surge, measured - predicted";
      :short_name = "Residual";
      :coordinates = "lat lon";
      :_FillValue = -999.99; // double
      :_ChunkSizes = 7440U; // uint

    double predictedWaterLevel(time=3900240);
      :_FillValue = -999.99; // double
      :units = "m";
      :long_name = "Predicted Water Level Height";
      :short_name = "Predicted Tide";
      :coordinates = "lat lon";
      :_ChunkSizes = 7440U; // uint

    double waterLevel(time=3900240);
      :_FillValue = -999.99; // double
      :units = "m";
      :standard_name = "water_surface_height_above_reference_datum";
      :long_name = "Water Level Height";
      :short_name = "Tide";
      :coordinates = "lat lon";
      :_ChunkSizes = 7440U; // uint

    byte gapGauge(time=3900240);
      :_FillValue = -99B; // byte
      :long_name = "Gap Gauge Key";
      :short_name = "Gap Gauge Key";
      :description = "Identifies what gauge was used to fill gaps - see attributes summary";
      :coordinates = "lat lon";
      :units = ;
      :_ChunkSizes = 7440U; // uint

  // global attributes:
  :cdm_data_type = "Station";
  :featureType = "timeSeries";
  :title = "FRF NOAA Tide Station";
  :summary = "USACE/CHL/COAB downloads NOAA preliminary tide data at 30 minute intervals from the FRF \n  end-of-pier (EOP) NOAA station (8651370).  These data have not undergone NOAA quality checks.\n  For the Link to the NOAA site for this station, and quality controlled archive data use\n  http://tidesandcurrents.noaa.gov/noaatidepredictions/NOAATidesFacade.jsp?Stationid=8651370.\n  An dataSource variable (1-byte) identifies what gauge was used to fill times when the NOAA gauge \n  was not operational.  The following values indicate the data source -\n    0 = missing value\n    1 = NOAA QC archive data\n    2 = NOAA preliminary data (realtime data)\n    3 = FRF EOP Paros Pressure gauge, ID=1861\n    4 = FRF 8m Array median pressure gauge\n    5 = Other FRF gauge\n";
  :history = "1981-01-01:dataset created";
  :source = "In situ observations from FRF-ocean_waterlevel_eopNoaaTide_YYYYMM.mat";
  :sourceUrl = "(local files)";
  :standard_name_vocabulary = "CFv25";
  :Metadata_Conventions = "Unidata Dataset Discovery v1.0, CF-1.6";
  :metadata_link = "N/A";
  :Conventions = "CF-1.6";
  :creator_name = "USACE/CHL/COAB";
  :creator_url = "http://frf.usace.army.mil/";
  :creator_email = "frfwebmaster@usace.army.mil";
  :license = "These data may be redistributed and used without restriction. Data are intended for scholarly use by the research community, with the express agreement that users will properly acknowledge the USACE Field Research Facility and the supporting investigator(s). Use or reproduction of these data for commercial purposes is prohibited without prior written permission.";
  :keywords_vocabulary = "Global Change Master Directory (GCMD) Earth Science Keywords; CF Standard Name Table (v23, 23 March 2013)";
  :keywords = "Oceans > Tides > Tidal Height, Oceans > Coastal Processes > Sea Surface Height, DOD > DOD/USARMY/USACE/CHL/FRF > Field Research Facility, Coastal And Hydraulics Laboratory, U. S. Army Corps Of Engineers, U.S. Army, U. S. Department Of Defense, water_surface_height_above_reference_datum\n";
  :processing = "realtime";
  :organization = "USACE/CHL/COAB";
  :publisher_url = "http://frf.usace.army.mil";
  :infoUrl = "http://frf.usace.army.mil";
  :publisher_email = "frfwebmaster@usace.army.mil";
  :publisher_name = "USACE/CHL/COAB";
  :format_version = "v1.0";
  :institution = "USACE/CHL/COAB";
  :contact = "USACE/CHL/COAB";
  :contact_info = "USACE/FRF";
  :contact_role = "Owner";
  :contributor_name = "USACE/CHL/COAB";
  :contributor_role = "USACE/CHL/COAB";
  :naming_authority = "FRF";
  :origin = "USACE/CHL/COAB";
  :date_created = "2025-05-31";
  :date_issued = "2025-05-31";
  :project = "USACE/FRF observations";
  :id = "FRF-ocean_waterlevel_NOAAtide";
  :acknowledgement = "Data are provided by the Coastal Observations and Analysis Branch, Coastal and Hydraulics Laboratory, US Army Corps of Engineers, Duck, North Carolina.";
  :processing_level = "L1";
  :geospatial_vertical_units = "m";
  :geospatial_vertical_resolution = 0.0; // double
  :geospatial_vertical_min = 0.0; // double
  :geospatial_vertical_max = 0.0; // double
  :geospatial_lat_min = 36.183639; // double
  :geospatial_lat_max = 36.183639; // double
  :geospatial_lat_units = "degrees_north";
  :geospatial_lon_min = -75.74528; // double
  :geospatial_lon_max = -75.74528; // double
  :geospatial_lon_units = "degrees_east";
  :geospatial_vertical_origin = "NAVD88";
  :geospatial_vertical_positive = "up";
  :time_coverage_start = "2025-05-01T00:00:00";
  :time_coverage_end = "2025-05-31T23:54:00";
  :deployment_start = "1981-01-01T00:00:00Z";
  :deployment_end = "present";
  :comment = ; // double
  :datum = "NAVD88";
  :timezone = "GMT";
  :sensor_type = "Varies; NOAA Stilling well (float), NOAA next-gen gauge (Acoustic)";
}