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Dataset Title:  DIVA 4D analysis of Water body silicate (Black Sea, Water body silicate.
4Danl) [time][lat][lon], 0.050000004deg, 1973-2016
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Institution:  University of Liege, GeoHydrodynamics and Environment Research   (Dataset ID: Black_Sea_Si_3D_85b9_2a4e_d091)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Data Access Form
 
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 9.59904e+7, 1.476576e+9;
    String axis "T";
    String cell_methods "time: mean";
    String climatology "climatology_bounds";
    String ioos_category "Time";
    String long_name "Time";
    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";
    Float32 actual_range 40.0, 47.95;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range 26.5, 41.95;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Water_body_silicate_deepest {
    Float32 _FillValue -99.0;
    String cell_methods "time: mean";
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Deepest values of Water body silicate";
    Float32 missing_value -99.0;
    String standard_name "mole_concentration_of_silicate_in_sea_water";
    String units "umol/l";
    Float32 valid_max 207.0;
    Float32 valid_min 0.0;
  }
  Water_body_silicate_deepest_L1 {
    Float32 _FillValue -99.0;
    String cell_methods "time: mean";
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Deepest values of Water body silicate masked using relative error threshold 0.3";
    Float32 missing_value -99.0;
    String units "umol/l";
    Float32 valid_max 123.0;
    Float32 valid_min 0.0;
  }
  Water_body_silicate_deepest_L2 {
    Float32 _FillValue -99.0;
    String cell_methods "time: mean";
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Deepest values of Water body silicate masked using relative error threshold 0.5";
    Float32 missing_value -99.0;
    String units "umol/l";
    Float32 valid_max 123.0;
    Float32 valid_min 0.0;
  }
  NC_GLOBAL {
    String acknowledgement "Aggregated data products are generated by EMODnet Chemistry under the support of DG MARE Call for Tenders MARE/2008/03-lot3, MARE/2012/10-lot4,EASME/EMFF/2016/006-lot4, EASME/2019/OP/0003-lot4.";
    String area_keywords "Black Sea, Sea of Azov, Sea of Marmara";
    String Author_e_mail "Luminita Buga <lbuga@web.de>, Gheorghe Sarbu <ghesarbu@gmail.com>";
    String cdm_data_type "Grid";
    String comment "Every year of the time dimension corresponds to a 6-year running average for Winter (December - February), Spring (March - May), Summer (June - August) or Autumn (September - November). Horizontal resolution 0.05° X 0.05°.";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_name "University of Liege, GeoHydrodynamics and Environment Research";
    String creator_type "institution";
    String creator_url "http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Black_Sea/Water_body_silicate.4Danl.nc.html";
    String date "2021-03-17T00:00:00";
    String doi "10.6092/9521c33f-d8d1-4576-b184-6651c1c0145b";
    Float64 Easternmost_Easting 41.95;
    String file_name "Black Sea/Water_body_silicate.4Danl.nc";
    Float64 geospatial_lat_max 47.95;
    Float64 geospatial_lat_min 40.0;
    Float64 geospatial_lat_resolution 0.05000000000000002;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 41.95;
    Float64 geospatial_lon_min 26.5;
    Float64 geospatial_lon_resolution 0.05000000000000001;
    String geospatial_lon_units "degrees_east";
    String history 
"Wed Jul 20 11:17:05 2022: ncatted -a history,global,d,, Water_body_silicate.4Danl.nc Water_body_silicate.4Danl.nc
2023-12-08T05:22:06Z http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Black_Sea/Water_body_silicate.4Danl.nc
2023-12-08T05:22:06Z https://erddap.emodnet.eu/griddap/Black_Sea_Si_3D_85b9_2a4e_d091.das";
    String id "DatasetScan/emodnet-domains/By_sea_regions/Black_Sea/Water_body_silicate.4Danl.nc";
    String infoUrl "http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Black_Sea/Water_body_silicate.4Danl.nc.html";
    String institution "University of Liege, GeoHydrodynamics and Environment Research";
    String institution_edmo_code "697";
    String keywords "analysis, black, body, chemistry, concentration, data, deepest, diva, earth, Earth Science > Oceans > Ocean Chemistry > Silicate, environment, error, geohydrodynamics, latitude, liege, longitude, masked, mole, mole_concentration_of_silicate_in_sea_water, ocean, oceans, relative, research, science, sea, seawater, silicate, silicate.4danl, threshold, time, university, using, values, water, Water_body_silicate_deepest, Water_body_silicate_deepest_L1, Water_body_silicate_deepest_L2";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String NCO "netCDF Operators version 4.9.9 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    Int32 nco_openmp_thread_number 1;
    Float64 Northernmost_Northing 47.95;
    String parameter_keywords "Water body silicate";
    String preview "http://ec.oceanbrowser.net/emodnet/Python/web/wms?styles=vmax%3A61.04212%2Bvmin%3A8.471057&format=image%2Fpng&height=500&bbox=26.5%2C40.0%2C41.95%2C47.95&decorated=true&transparent=true&layers=Black+Sea%2FWinter+%28December-February%29+-+6-years+running+averages%2FWater+body+silicate.4Danl.nc%2AWater+body+silicate&crs=CRS%3A84&service=WMS&request=GetMap&width=800&version=1.3.0";
    String product_id "494676cf-ba43-11e8-a1b8-6805ca696f0e";
    String product_version "1.0";
    String production "Diva group. E-mails : a.barth@ulg.ac.be ; swatelet@ulg.ac.be";
    String project "EMODnet Chemistry - Phase 4";
    String search_keywords "Silicate concentration parameters in the water column";
    String source "observational data from EMODNet Chemistry Data Network";
    String sourceUrl "http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/By_sea_regions/Black_Sea/Water_body_silicate.4Danl.nc";
    Float64 Southernmost_Northing 40.0;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "DIVA 4D analysis of Water body silicate. Every year of the time dimension corresponds to a 6-year running average for Winter (December - February), Spring (March - May), Summer (June - August) or Autumn (September - November). Horizontal resolution 0.05deg X 0.05deg.";
    String time_coverage_end "2016-10-16T00:00:00Z";
    String time_coverage_start "1973-01-16T00:00:00Z";
    String title "DIVA 4D analysis of Water body silicate (Black Sea, Water body silicate.4Danl) [time][lat][lon], 0.050000004deg, 1973-2016";
    Float64 Westernmost_Easting 26.5;
  }
}

 

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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