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Dataset Title:  Global Ocean, Gridded In Situ reprocessed carbon observations,
SOCATv2019 (yearly)
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Institution:  PMEL, NOAA   (Dataset ID: SOCATv2019_tracks_gridded_yearly_CMEMS)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (Tyear, UTC) ?      49    365 days 6h 0m 0s (uneven)
  < slider >
 latitude (degrees_north) ?      180    1.0 (even)
  < slider >
 longitude (degrees_east) ?      360    1.0 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables)
 count_ncruise_year (Number of cruises, count) ?
 fco2_count_nobs_year (count) ?
 fco2_ave_weighted_year (uatm) ?
 fco2_ave_unwtd_year (fCO2 mean - unweighted all obs, uatm) ?
 fco2_min_unwtd_year (fCO2 min, uatm) ?
 fco2_max_unwtd_year (fCO2 max, uatm) ?
 sst_count_nobs_year (Number of valid sst obs, count) ?
 sst_ave_weighted_year (degree_C) ?
 sst_ave_unwtd_year (SST mean - unweighted all obs, degree_C) ?
 sst_min_unwtd_year (SST min, degree_C) ?
 sst_max_unwtd_year (SST max, degree_C) ?
 salinity_count_nobs_year (count) ?
 salinity_ave_weighted_year (PSU) ?
 salinity_ave_unwtd_year (PSU) ?
 salinity_min_unwtd_year (PSU) ?
 salinity_max_unwtd_year (PSU) ?

File type: (more info)

(Documentation / Bypass this form) ?
 
(Please be patient. It may take a while to get the data.)


 

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5768e+7, 1.5305328e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Tyear";
    String source_name "tyear";
    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 actual_range -89.5, 89.5;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String point_spacing "even";
    String source_name "ylat";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -179.5, 179.5;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    Float64 modulo 360.0;
    String point_spacing "even";
    String source_name "xlon";
    String standard_name "longitude";
    String units "degrees_east";
  }
  count_ncruise_year {
    Int32 _FillValue -9999;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "Number of cruises";
    Int32 missing_value -9999;
    String summary "Counts datasets which returned any data in the month and grid cell. The monthly cruise counts within the year are summed.";
    String units "count";
  }
  fco2_count_nobs_year {
    Int32 _FillValue -9999;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "Number of fco2 obs";
    Int32 missing_value -9999;
    String summary "Counts all observations in the month and grid cell. The monthly observation counts within the year are summed.";
    String units "count";
  }
  fco2_ave_weighted_year {
    Float32 _FillValue -1.0e+34;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "fCO2 mean - per cruise weighted";
    Float32 missing_value -1.0e+34;
    String summary "The weighted cruise means for the months within the year is averaged.";
    String units "uatm";
  }
  fco2_ave_unwtd_year {
    Float32 _FillValue -1.0e+34;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "fCO2 mean - unweighted all obs";
    Float32 missing_value -1.0e+34;
    String summary "Mean of all observations from all datasets. The means for the months within the year are averaged. They are not re-weighted for the varying lengths of the months.";
    String units "uatm";
  }
  fco2_min_unwtd_year {
    Float32 _FillValue -1.0e+34;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "fCO2 min";
    Float32 missing_value -1.0e+34;
    String summary "The minimum monthly value for the year";
    String units "uatm";
  }
  fco2_max_unwtd_year {
    Float32 _FillValue -1.0e+34;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "fCO2 max";
    Float32 missing_value -1.0e+34;
    String summary "The maximum monthly value for the year";
    String units "uatm";
  }
  sst_count_nobs_year {
    Int32 _FillValue -9999;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "Number of valid sst obs";
    Int32 missing_value -9999;
    String summary "Counts all observations in the month and grid cell. The monthly observation counts within the year are summed.";
    String units "count";
  }
  sst_ave_weighted_year {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "SST mean - per cruise weighted";
    Float32 missing_value -1.0e+34;
    String standard_name "sea_surface_temperature";
    String summary "The weighted cruise means for the months within the year is averaged.";
    String units "degree_C";
  }
  sst_ave_unwtd_year {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "SST mean - unweighted all obs";
    Float32 missing_value -1.0e+34;
    String standard_name "sea_surface_temperature";
    String summary "Mean of all observations from all datasets. The means for the months within the year are averaged. They are not re-weighted for the varying lengths of the months.";
    String units "degree_C";
  }
  sst_min_unwtd_year {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "SST min";
    Float32 missing_value -1.0e+34;
    String standard_name "sea_surface_temperature";
    String summary "The minimum monthly value for the year";
    String units "degree_C";
  }
  sst_max_unwtd_year {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "SST max";
    Float32 missing_value -1.0e+34;
    String standard_name "sea_surface_temperature";
    String summary "The maximum monthly value for the year";
    String units "degree_C";
  }
  salinity_count_nobs_year {
    Int32 _FillValue -9999;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "Number of valid salinity obs";
    Int32 missing_value -9999;
    String summary "Counts all observations in the month and grid cell. The monthly observation counts within the year are summed.";
    String units "count";
  }
  salinity_ave_weighted_year {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "Salinity mean - per cruise weighted";
    Float32 missing_value -1.0e+34;
    String standard_name "sea_water_practical_salinity";
    String summary "The weighted cruise means for the months within the year is averaged.";
    String units "PSU";
  }
  salinity_ave_unwtd_year {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "Salinity mean - unweighted all obs";
    Float32 missing_value -1.0e+34;
    String standard_name "sea_water_practical_salinity";
    String summary "Mean of all observations from all datasets. The means for the months within the year are averaged. They are not re-weighted for the varying lengths of the months.";
    String units "PSU";
  }
  salinity_min_unwtd_year {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "Salinity min";
    Float32 missing_value -1.0e+34;
    String standard_name "sea_water_practical_salinity";
    String summary "The minimum monthly value for the year";
    String units "PSU";
  }
  salinity_max_unwtd_year {
    Float32 _FillValue -1.0e+34;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String history "From /home/data/socat/v2019v7/SOCAT_tracks_gridded_monthly_v2019v7.nc";
    String long_name "Salinity max";
    Float32 missing_value -1.0e+34;
    String standard_name "sea_water_practical_salinity";
    String summary "The maximum monthly value for the year";
    String units "PSU";
  }
  NC_GLOBAL {
    String area "Global Ocean";
    String author "SOCAT and Copernicus data provider";
    String caution "NO INTERPOLATION WAS PERFORMED. SIGNIFICANT BIASES ARE PRESENT IN THESE GRIDDED RESULTS DUE TO THE ARBITRARY AND SPARSE LOCATIONS OF DATA VALUES IN BOTH SPACE AND TIME.";
    String cdm_data_type "Grid";
    String citation "These data were collected and made freely available by the Copernicus project and the programs that contribute to it. Cite as Bakker et al. (2016), Bakker et al. (2019); see dois";
    String contact "post@bcdc.uib.no";
    String Conventions "CMEMS-INS-PUM-013-050; CF-1.6 Copernicus-InSituTAC-Manual-1.0, COARDS, ACDD-1.3";
    String creator_email "post@bcdc.uib.no";
    String creator_name "POST";
    String creator_type "institution";
    String creator_url "https://www.pmel.noaa.gov/";
    String data_assembly_center "BERGEN";
    String data_mode "D";
    String data_type "Copernicus Marine gridded data";
    String date_update "2020-02-17T00:00:00Z";
    String distribution_statement "These data follow Copernicus standards; they are public and free of charge. User assumes all risk for use of data. User must display citation in any publication or product using data. User must contact PI prior to any commercial use of data.";
    String doi "0.5194/essd-8-383-2016 10.25921/cpbz-qa92";
    Float64 Easternmost_Easting 179.5;
    String format_version "1.4";
    Float64 geospatial_lat_max 89.5;
    Float64 geospatial_lat_min -89.5;
    Float64 geospatial_lat_resolution 1.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 179.5;
    Float64 geospatial_lon_min -179.5;
    Float64 geospatial_lon_resolution 1.0;
    String geospatial_lon_units "degrees_east";
    String history 
"2020-02-17T16:18:25Z : Creation
2020-09-20T21:10:39Z (local files)
2020-09-20T21:10:39Z https://erddap.emodnet-physics.eu/erddap/griddap/SOCATv2019_tracks_gridded_yearly_CMEMS.das";
    String id "SOCATv2019_tracks_gridded_yearly_CMEMS";
    String infoUrl "http://marine.copernicus.eu";
    String institution "PMEL, NOAA";
    String institution_edmo_code "1440";
    String keywords "all, carbon, circulation, control, count_ncruise_year, cruise, cruises, data, density, earth, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, Earth Science > Oceans > Salinity/Density > Salinity, environmental, experiment, fco2, fco2_ave_unwtd_year, fco2_ave_weighted_year, fco2_count_nobs_year, fco2_max_unwtd_year, fco2_min_unwtd_year, global, gridded, laboratory, marine, max, mean, min, noaa, number, obs, observations, ocean, oceans, pacific, per, pmel, practical, quality, reprocessed, salinity, salinity_ave_unwtd_year, salinity_ave_weighted_year, salinity_count_nobs_year, salinity_max_unwtd_year, salinity_min_unwtd_year, science, sea, sea_surface_temperature, sea_water_practical_salinity, seawater, situ, socatv2019, sst, sst_ave_unwtd_year, sst_ave_weighted_year, sst_count_nobs_year, sst_max_unwtd_year, sst_min_unwtd_year, surface, temperature, tyear, unweighted, valid, water, weighted, woce, world, xlon, ylat";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "These data follow Copernicus standards; they are public and free of charge. User assumes all risk for use of data. User must display citation in any publication or product using data. User must contact PI prior to any commercial use of data.";
    String naming_authority "Copernicus Marine in situ";
    String netcdf_version "netCDF-4 classic model";
    Float64 Northernmost_Northing 89.5;
    String references "http://marine.copernicus.eu https://www.socat.info";
    String SOCAT_history "PyFerret V7.5 (optimized) 21-May-19";
    String SOCAT_Notes "SOCAT gridded v2019 (v7) 22-May-2019";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -89.5;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "Global Ocean - Gridded In Situ reprocessed carbon observations - SOCATv2019. Surface Ocean Carbon Atlas (SOCAT) Gridded (binned) SOCAT observations, with a spatial grid of 1x1 degree and yearly in time. The gridded fields are computed from the monthly 1-degree gridded data, which uses only SOCAT datasets with Quality Control (QC) flags of A through D and SOCAT data points flagged with World Ocean Circulation Experiment (WOCE) flag values of 2. This yearly data is computed using data from the start to the end of each year as described in the summary attribute of each variable.";
    String time_coverage_end "2018-07-02T12:00:00Z";
    String time_coverage_start "1970-07-02T12:00:00Z";
    String title "Global Ocean, Gridded In Situ reprocessed carbon observations, SOCATv2019 (yearly)";
    String update_interval "yearly";
    Float64 Westernmost_Easting -179.5;
  }
}

 

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its projection 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.

griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][latitude][longitude]).

For details, see the griddap Documentation.


 
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