netcdf VirtualBuoys/East_Region/virtual_buoys_SST_VIR02.nc {
  dimensions:
    daily_records_sst = 9278;
    mean_pixel_value = 1;
  variables:
    byte sst_quality_flag(mean_pixel_value=1, daily_records_sst=9278);
      :_FillValue = -1B; // byte
      :description = "QUARTOD quality flag for SST (physical thresholds + 3×STD outlier detection on final time series)";
      :flag_values = 1B, 2B, 3B, 4B, 9B; // byte
      :flag_meanings = "good not_evaluated questionable bad missing";
      :valid_range = 1B, 9B; // byte
      :standard_name = "quality_flag";
      :references = "IOOS QUARTOD";
      :outlier_method = "Physical range filter (22-34°C) + 3×STD (mean ± 3×standard_deviation) on daily averaged time series";
      :flag_1_description = "Good data that passed all quality control tests";
      :flag_2_description = "Not evaluated (missing data)";
      :flag_3_description = "Questionable data flagged as statistical outliers";
      :flag_4_description = "Bad data that failed all quality control tests";
      :flag_9_description = "Missing data (NaN values)";
      :physical_thresholds = "SST: 22°C ≤ valid ≤ 33°C";
      :_ChunkSizes = 1, 9278; // int

    float time_sst(daily_records_sst=9278);
      :description = "Time for sst product (averaged for multiple measurements per day)";
      :long_name = "Time coordinate for sea surface temperature measurements";
      :standard_name = "time";
      :time_origin = "01-JAN-1970 00:00:00";
      :units = "seconds since 1970-01-01T00:00:00Z";
      :time_coverage_start = "February of 2000";
      :frequency = "Daily (averaged when multiple measurements per day)";
      :resolution = "250 meter/64 satellite pixels";
      :_ChunkSizes = 9278; // int

    float sst(mean_pixel_value=1, daily_records_sst=9278);
      :Alt_products = "UNSUPPORTED DATATYPE";
      :Alt_sats = "UNSUPPORTED DATATYPE";
      :units = "Celsius";
      :standard_name = "sea_surface_temperature";
      :long_name = "Sea Surface Temperature";
      :coverage_content_type = "physicalMeasurement";
      :_FillValue = 9.96921E36f; // float
      :_ChunkSizes = 1, 9278; // int

  // global attributes:
  :Conventions = "CF-1.8, ACDD-1.3";
  :title = "Satellite-derived water quality data for  Hind Bank 02";
  :summary = "Satellite-derived sea surface temperature data for Caribbean coastal waters. Data are quality controlled using IOOS QUARTOD standards with 3-sigma outlier detection and physical range validation.";
  :keywords = "sea surface temperature, SST, satellite, MODIS, VIIRS, QUARTOD, quality control, Caribbean, oceanography, remote sensing";
  :institution = "Caribbean Coastal Ocean Observing System (CARICOOS IOOS)";
  :publisher_url = "https://www.caricoos.org/";
  :publisher_name = "Caribbean Coastal Ocean Observing System (CARICOOS)";
  :publisher_email = "dmac@caricoos.org";
  :source = "Optical Oceanography Laboratory (OOL) University of South Florida";
  :created_by = "Dr. Brian Barnes (bbarnes4@usf.edu)";
  :project_web_site = "http://www.caricoos.org/ & https://www.usf.edu/marine-science/research/optical-oceanography-lab/";
  :comment = "Implemented by Edward Cruz Garcia (edward.cruz@upr.edu). Data processing: Multiple measurements per day are averaged to produce one measurement per day.";
  :data_processing = "When multiple measurements exist for the same date, values are averaged and time is set to the mean time of all measurements for that date";
  :outlier_detection_method = "3×STD: Values beyond mean ± 3×standard_deviation on final time series are flagged as questionable (flag 3)";
  :physical_thresholds = "SST: 22-33°C";
  :qc_methodology = "IOOS QUARTOD compliant QC: (1) Physical range filtering before averaging, (2) 3×STD outlier detection on final daily time series";
  :qc_standards = "IOOS QUARTOD - Integrated Ocean Observing System Quality Assurance/Quality Control of Real-Time Oceanographic Data";
  :quality_flag_system = "Flag 1: Good data, Flag 2: Not Evaluated, Flag 3: Questionable (outliers), Flag 4: Bad data, Flag 9: Missing (NaN)";
  :processing_order = "1) Apply physical range filters, 2) Average pixels and days, 3) Detect outliers on final time series, 4) Assign quality flags";
  :file_date_created = "29-Aug-2025";
  :station_id = "VIR02";
  :id = "CARICOOS_SST_VIR02_20250829";
  :naming_authority = "edu.upr.caricoos";
  :history = "2025-08-29 08:35:42 - Data processed and quality controlled using IOOS QUARTOD standards";
  :creator_name = "Dr. Brian Barnes";
  :creator_email = "bbarnes4@usf.edu";
  :creator_url = "https://www.usf.edu/marine-science/research/optical-oceanography-lab/";
  :project = "Caribbean Coastal Ocean Observing System (CARICOOS)";
  :processing_level = "L3";
  :acknowledgment = "This work was supported by NOAA through the Integrated Ocean Observing System (IOOS) and the Caribbean Coastal Ocean Observing System (CARICOOS).";
  :geospatial_lat_min = 18.214758; // double
  :geospatial_lat_max = 18.214758; // double
  :geospatial_lon_min = -65.040606; // double
  :geospatial_lon_max = -65.040606; // double
  :geospatial_vertical_min = 0.0; // double
  :geospatial_vertical_max = 0.0; // double
  :geospatial_bounds = "POLYGON((-65.041 18.215, -65.041 18.215, -65.041 18.215, -65.041 18.215, -65.041 18.215))";
  :time_coverage_start = "2000-02-24T15:15:00Z";
  :time_coverage_end = "2025-08-28T07:39:30Z";
  :time_coverage_duration = "P9317D";
  :time_coverage_resolution = "P1D";
  :standard_name_vocabulary = "CF Standard Name Table v79";
  :Long_name = "Hind Bank 02";
  :Latitude = 18.214758f; // float
  :Longitude = -65.0406f; // float
  :Depth = -44.0f; // float
  :Sats_to_use_meaning = "\"A\"=MODIS on Sat. Aqua, \"T\"=MODIS on Sat. Terra, \"V\"=VIIRS on SNPP, \"W\"=VIRRS on NOAA-20";
}