netcdf Parguera_Sargassum/Biochemical/biogeochemical_Varadero.nc {
  dimensions:
    time = UNLIMITED;   // (81 currently)
  variables:
    double time(time=81);
      :coverage_content_type = "coordinate";
      :_ChunkSizes = 512; // int

    String station_id;
      :long_name = "Station identifier";
      :cf_role = "timeseries_id";

    float latitude;
      :standard_name = "latitude";
      :units = "degrees_north";
      :long_name = "Latitude";
      :axis = "Y";
      :coverage_content_type = "coordinate";

    float longitude;
      :standard_name = "longitude";
      :units = "degrees_east";
      :long_name = "Longitude";
      :axis = "X";
      :coverage_content_type = "coordinate";

    float Depth_bottom(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 3L; // long
      :Dimensions = "time";
      :units = "unknown";
      :standard_name = "";
      :comment = "Needs CF-compliant attributes";
      :coverage_content_type = "coordinate";
      :_ChunkSizes = 1024; // int

    float CTDPRES(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 3L; // long
      :Dimensions = "time";
      :units = "dbar";
      :standard_name = "sea_water_pressure";
      :long_name = "Sea water pressure";
      :positive = "down";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    float Depth(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 1L; // long
      :Dimensions = "time";
      :units = "m";
      :standard_name = "depth";
      :long_name = "Depth below sea surface";
      :positive = "down";
      :axis = "Z";
      :instrument = "SBE25 CTD (SBE 29 strain gauge pressure sensor)";
      :analysis_instrument = "SeaTerm and SBE Data Processing";
      :method = "Measured in the field";
      :uncertainty = "0.6 m";
      :measurement_details = "Depth of the insitu sampling. Profile measurements are continually taken at a frequency of 8 hertz. Profiles are subject to the depth of the sampled site. Hexadecimal raw data is downloaded from the CTD using the Seaterm software and converted to comma separated values format with SBE Data Processing.";
      :coverage_content_type = "coordinate";
      :_ChunkSizes = 81; // int

    float CTDTEMP_ITS90(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 3L; // long
      :Dimensions = "time";
      :units = "deg_C";
      :standard_name = "sea_water_temperature";
      :long_name = "Seawater temperature";
      :instrument = "SBE25 CTD (SBE 3F temperature sensor)";
      :analysis_instrument = "SeaTerm and SBE Data Processing";
      :method = "Measured in the field";
      :uncertainty = "0.001 deg_C";
      :comment = "Profile measurements are continually taken at a frequency of 8 hertz. Profiles are subject to the depth of the sampled site. Hexadecimal raw data is downloaded from the CTD using the Seaterm software and converted to comma separated values format with SBE Data Processing.";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    int CTDTEMP_flag(time=81);
      :_FillValue = -128; // int
      :Dimensions = "time";
      :standard_name = "quality_flag";
      :flag_values = 0L, 1L, 2L, 3L, 4L, 9L; // long
      :flag_meanings = "calculated_data, not_analyzed, good_data, questtionable_data, bad_data, missing_data";
      :long_name = "Quality flag for CTDTEMP";
      :coverage_content_type = "qualityInformation";
      :_ChunkSizes = 81; // int

    float CTDSAL_PSS78(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 3L; // long
      :Dimensions = "time";
      :units = "PSU";
      :standard_name = "sea_water_salinity";
      :long_name = "Practical salinity";
      :instrument = "SBE25 CTD (SBE 4C conductivity sensor)";
      :analysis_instrument = "SeaTerm and SBE Data Processing";
      :method = "Measured in the field";
      :uncertainty = "0.0003 PSU";
      :comment = "Profile measurements are continually taken at a frequency of 8 hertz. Profiles are subject to the depth of the sampled site. Hexadecimal raw data is downloaded from the CTD using the Seaterm software and converted to comma separated values format with SBE Data Processing.";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    int CTDSAL_flag(time=81);
      :_FillValue = -128; // int
      :Dimensions = "time";
      :standard_name = "quality_flag";
      :flag_values = 0L, 1L, 2L, 3L, 4L, 9L; // long
      :flag_meanings = "calculated_data, not_analyzed, good_data, questtionable_data, bad_data, missing_data";
      :long_name = "Quality flag for CTDSAL";
      :coverage_content_type = "qualityInformation";
      :_ChunkSizes = 81; // int

    float Oxygen(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 2L; // long
      :Dimensions = "time";
      :units = "µmol kg-1";
      :standard_name = "moles_of_oxygen_per_unit_mass_in_sea_water";
      :long_name = "Dissolved oxygen concentration";
      :instrument = "Van Dorn Bottle";
      :analysis_instrument = "Metler Toledo DL50";
      :method = "Measured in the field";
      :comment = "Samples are fixed using 1 mL of manganese solution and 1 mL of alkaline iodide solution. DO samples are analyzed using a Metler Toledo DL 50 in a period no longer than 24 hours after sampling. The samples are acidified with 10 N sulfuric acid and allowed to stand for one hour to dissolve the precipitate. Thiosulfate solution (0.01 N) is standardize with a potassium iodate standard solution (0.01 N). Samples are titrated with the thiosulfate solution in duplicates. The DO is calculated using the equations of Strickland and Parson (1972).";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    int OXYGEN_flag(time=81);
      :_FillValue = -128; // int
      :Dimensions = "time";
      :standard_name = "quality_flag";
      :flag_values = 0L, 1L, 2L, 3L, 4L, 9L; // long
      :flag_meanings = "calculated_data, not_analyzed, good_data, questtionable_data, bad_data, missing_data";
      :long_name = "Quality flag for OXYGEN";
      :coverage_content_type = "qualityInformation";
      :_ChunkSizes = 81; // int

    float DIC(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 1L; // long
      :Dimensions = "time";
      :units = "µmol kg-1";
      :standard_name = "dissolved_inorganic_carbon_content_per_unit_mass_in_sea_water";
      :long_name = "Dissolved inorganic carbon";
      :instrument = "Van Dorn Bottle";
      :analysis_instrument = "Apollo SciTech AS-C2 automated analyzer";
      :method = "Measured in the field";
      :comment = "DIC samples were analyzed at UNH by measuring the infrared absorption of the CO_2 released upon the acidification of the sample with 10% phosphoric acid using an Apollo SciTech AS-C2 automated DIC analyzer. The instrument and method precision as implemented was ±2 μmol kg-1.";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    int DIC_flag(time=81);
      :_FillValue = -128; // int
      :Dimensions = "time";
      :standard_name = "quality_flag";
      :flag_values = 0L, 1L, 2L, 3L, 4L, 9L; // long
      :flag_meanings = "calculated_data, not_analyzed, good_data, questtionable_data, bad_data, missing_data";
      :long_name = "Quality flag for DIC";
      :coverage_content_type = "qualityInformation";
      :_ChunkSizes = 81; // int

    float TA(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 2L; // long
      :Dimensions = "time";
      :units = "µmol kg-1";
      :standard_name = "total_alkalinity_per_unit_mass_in_sea_water";
      :long_name = "Total alkalinity";
      :instrument = "Van Dorn Bottle";
      :analysis_instrument = "Automated titrator with a Orion ROSS Ultra Glass Triode pH electrode (Thermo Fisher Inc.)";
      :method = "Gran titration";
      :comment = "The Dickson Certified Reference Materials were used to standardize the nominal 0.1 M hydrochloric acid (HCl) titrant. The uncertainty of the instrument and analytical methods as implemented were ± 1 -2 μmol kg-1 SW. The pH electrode use in the TA titration is an Orion ROSS Ultra Glass Triode, Thermo Fisher Inc., calibrated using three low ionic strength pH buffers certified on the U.S. National Bureau of Standards (NBS) scale to ±0.01.";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    int TA_flag(time=81);
      :_FillValue = -128; // int
      :Dimensions = "time";
      :standard_name = "quality_flag";
      :flag_values = 0L, 1L, 2L, 3L, 4L, 9L; // long
      :flag_meanings = "calculated_data, not_analyzed, good_data, questtionable_data, bad_data, missing_data";
      :long_name = "Quality flag for TA";
      :coverage_content_type = "qualityInformation";
      :_ChunkSizes = 81; // int

    float pH_T_measured(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 3L; // long
      :Dimensions = "time";
      :units = "1";
      :standard_name = "sea_water_ph_reported_on_total_scale";
      :long_name = "pH on total scale";
      :instrument = "Van Dorn Bottle";
      :analysis_instrument = "Shimadzu 1800 spectrophotometers";
      :method = "Measured in the field";
      :comment = "The pH analysis are accomplished within 24 hours of sampling, if not the sample is preserved with a saturated solution of mercury chloride. M-cresol purple is used as the indicator dye and absorbances are recorded at  434, 488 ,578 and 730-750 nm. Methanol and distilled water are used to rinse between runs. The pH value is calculated considering the Henderson-Hasselbalch and Beer-Lambert Law equations, in-situ salinities and temperatures, laboratory temperature and extinction coefficients for the dye. Each sample is analyzed in duplicate in 10 cm pathlength quartz cylindrical cells with distilled water in the background over a wavelength range to 430 to 750 nm at 1.0 nm intervals.";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    int pH_flag(time=81);
      :_FillValue = -128; // int
      :Dimensions = "time";
      :standard_name = "quality_flag";
      :flag_values = 0L, 1L, 2L, 3L, 4L, 9L; // long
      :flag_meanings = "calculated_data, not_analyzed, good_data, questtionable_data, bad_data, missing_data";
      :long_name = "Quality flag for pH";
      :coverage_content_type = "qualityInformation";
      :_ChunkSizes = 81; // int

    float Omega(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 2L; // long
      :Dimensions = "time";
      :units = "1";
      :standard_name = "omega_aragonite_in_sea_water";
      :long_name = "Aragonite saturation state";
      :method = "calculated using measured TA and pH and Lueker et al. (2000), Dickson and Uppstrom (1974) constants.";
      :comment = "Aragonite saturation states were calculated in CO2SYS using measured pH and TA and Lueker et al. (2000), Dickson and Uppstrom (1974) constants.";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    int OMEGA_flag(time=81);
      :_FillValue = -128; // int
      :Dimensions = "time";
      :standard_name = "quality_flag";
      :flag_values = 0L, 1L, 2L, 3L, 4L, 9L; // long
      :flag_meanings = "calculated_data, not_analyzed, good_data, questtionable_data, bad_data, missing_data";
      :long_name = "Quality flag for OMEGA";
      :coverage_content_type = "qualityInformation";
      :_ChunkSizes = 81; // int

    float pCO2(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 2L; // long
      :Dimensions = "time";
      :units = "µatm";
      :standard_name = "partial_pressure_of_carbon_dioxide_in_sea_water";
      :long_name = "Seawater pCO2";
      :method = "calculated using measured TA and pH and Lueker et al. (2000), Dickson and Uppstrom (1974) constants.";
      :comment = "pCO2 was calculated in CO2SYS using measured pH and TA and Lueker et al. (2000), Dickson and Uppstrom (1974) constants.";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    int pCO2_flag(time=81);
      :_FillValue = -128; // int
      :Dimensions = "time";
      :standard_name = "quality_flag";
      :flag_values = 0L, 1L, 2L, 3L, 4L, 9L; // long
      :flag_meanings = "calculated_data, not_analyzed, good_data, questtionable_data, bad_data, missing_data";
      :long_name = "Quality flag for pCO2";
      :coverage_content_type = "qualityInformation";
      :_ChunkSizes = 81; // int

    float Unnamed:_24(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 3L; // long
      :Dimensions = "time";
      :units = "unknown";
      :standard_name = "";
      :comment = "Needs CF-compliant attributes";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

    float Unnamed:_25(time=81);
      :_FillValue = -999.0f; // float
      :least_significant_digit = 3L; // long
      :Dimensions = "time";
      :units = "unknown";
      :standard_name = "";
      :comment = "Needs CF-compliant attributes";
      :coverage_content_type = "physicalMeasurement";
      :_ChunkSizes = 81; // int

  // global attributes:
  :title = "Sargassum monitoring program for Varadero station.";
  :acknowledgement = "This dataset is part of the Sargassum Monitoring Program, a collaboration between the University of Puerto Rico at Mayagüez and CARICOOS Inc. Special thanks to Luis Rodrigez, Julian Morell, Adolfo Gonzalez, and Maribel Velez.";
  :Conventions = "CF-1.6, ACDD-1.3";
  :keywords = "oceanography, carbon chemistry, biogeochemistry, Caribbean Sea, time series";
  :summary = "Weekly measurements of seawater biogeochemical parameters from coastal waters in southwestern Puerto Rico";
  :abstract = "This time series dataset includes weekly discrete seawater samples of dissolved oxygen, pH and total alkalinity, dissolved inorganic carbon, aragonite saturation state, pCO2 and measurements of temperature and salinity from 2019 to 2024. These are used to track the dynamics on local carbon chemistry and dissolved oxygen in regional coastal and near-shore zones at the southwest part of Puerto Rico.";
  :investigator_1 = "Julio Morell";
  :investigator_1_email = "julio.morell@upr.edu";
  :investigator_2 = "Loraine Martell-Bonet";
  :investigator_2_email = "loraine.martell@upr.edu";
  :investigator_3 = "Priscilla Molina Cora";
  :investigator_3_email = "priscilla.molina@upr.edu";
  :institution = "CARICOOS Inc.";
  :institution_url = "https://www.caricoos.org/";
  :institution_address = "Road 304 End, Magueyes Island; Lajas, PR 00667";
  :institution_phone = "1-787-899-2564, 1-787-450-0139";
  :creator_name = "Edward L. Cruz Garcia";
  :creator_email = "edward.cruz1@upr.edu";
  :creator_url = "https://www.caricoos.org/";
  :publisher_name = "CARICOOS Inc.";
  :publisher_email = "info@caricoos.org";
  :publisher_url = "https://www.caricoos.org/";
  :funding_agency = "IOOS-NCOOS";
  :project = "Oceanographic monitoring program";
  :Data_submitter = "Loraine Martell-Bonet";
  :Data_submitter_email = "loraine.martell@upr.edu";
  :source = "in situ measurement";
  :platform = "sampling_location";
  :platform_name = "Varadero";
  :platform_vocabulary = "http://mmisw.org/ont/ioos/platform";
  :processing_level = "Level 2";
  :purpose = "Weekly discrete sampling to assess biogeochemical parameters.";
  :date_created = "2025-07-29T16:09:30Z";
  :history = "Created 2025-07-29T16:09:30Z";
  :comment = "This dataset is part of the Sargassum Monitoring Program, a collaboration between the University of Puerto Rico at Mayagüez and CARICOOS Inc.";
  :references = "http://cfconventions.org";
  :featureType = "timeSeries";
  :geospatial_lat_min = 17.97283; // double
  :geospatial_lat_max = 17.97283; // double
  :geospatial_lon_min = -67.06376; // double
  :geospatial_lon_max = -67.06376; // double
  :time_coverage_start = "2023-06-01T12:45:00Z";
  :time_coverage_end = "2025-04-03T13:56:00Z";
  :time_coverage_duration = "P5Y";
  :time_coverage_resolution = "P1W";
  :time_coverage_interval = "P1W";
  :time_coverage_units = "days since 1970-01-01T00:00:00Z";
  :time_coverage_standard_name = "time";
  :cdm_data_type = "TimeSeries";
  :cdm_timeseries_variables = "station_id, latitude, longitude";
}