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Dataset Title:  Baltic Sea, Gulf of Riga, DIVAnd 4D seasonal analysis of Water body dissolved
inorganic nitrogen (DIN) 1994/2018 v2021 [time][depth][lat][lon], 0.01deg, 2006
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Institution:  Swedish Meteorological and Hydrological Institute   (Dataset ID: Gulf_Riga_DIN_4D_b303_b5cd_d6cc)
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 1.1373696e+9, 1.1609568e+9;
    String axis "T";
    String calendar "standard";
    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";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 actual_range 0.0, 50.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 56.8, 58.4;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 22.3, 25.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Water_body_dissolved_inorganic_nitrogen_28DIN_29 {
    Float32 _FillValue 9.96921e+36;
    String cell_methods "time: mean within years time: mean over years";
    String long_name "Water body dissolved inorganic nitrogen (DIN)";
    Float32 missing_value 9.96921e+36;
    String standard_name "water_body_dissolved_inorganic_nitrogen_(din)";
    String units "umol/l";
  }
  Water_body_dissolved_inorganic_nitrogen_28DIN_29_L1 {
    Float32 _FillValue 9.96921e+36;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Water body dissolved inorganic nitrogen (DIN) masked using relative error threshold 0.3";
    Float32 missing_value 9.96921e+36;
    String standard_name "water_body_dissolved_inorganic_nitrogen_(din)";
    String units "umol/l";
  }
  Water_body_dissolved_inorganic_nitrogen_28DIN_29_L2 {
    Float32 _FillValue 9.96921e+36;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Water body dissolved inorganic nitrogen (DIN) masked using relative error threshold 0.5";
    Float32 missing_value 9.96921e+36;
    String standard_name "water_body_dissolved_inorganic_nitrogen_(din)";
    String units "umol/l";
  }
  Water_body_dissolved_inorganic_nitrogen_28DIN_29_relerr {
    Float32 _FillValue 9.96921e+36;
    Float64 colorBarMaximum 0.1;
    Float64 colorBarMinimum 0.0;
    String long_name "Relative error of Water body dissolved inorganic nitrogen (DIN)";
    Float32 missing_value 9.96921e+36;
    Float32 valid_max 1.0;
    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 "Gulf of Riga";
    String area_keywords_urn "SDN:C19::2_5";
    String Author_e_mail "Karin Wesslander <karin.wesslander@smhi.se>";
    String bathymetry_source "The GEBCO 30 sec Digital Atlas published by the British Oceanographic Data Centre on behalf of IOC and IHO, 2003";
    String cdm_data_type "Grid";
    String comment "Seasonal climatology from time period 1994:2019. Horizontal resolution 0.01°.";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_name "Swedish Meteorological and Hydrological Institute";
    String creator_url "https://doi.org/10.6092/A8CFB472-10DB-4225-9737-5A60DA9AF523";
    String data_access "http://ec.oceanbrowser.net/data/emodnet-domains";
    String date "2021-05-23T10:50:25";
    String DIVA_code_doi "10.5281/zenodo.4715361";
    String DIVA_references 
"Barth, A.; Beckers, J.-M.; Troupin, C.; Alvera-Azcárate, A. & Vandenbulcke, L.
divand-1.0: n-dimensional variational data analysis for ocean observations
Geoscientific Model Development, 2014, 7, 225-241. DOI: :10.5194/gmd-7-225-2014";
    String DIVAnd_source "https://github.com/gher-ulg/DIVAnd.jl";
    String DIVAnd_version "2.7.5";
    String documentation "https://doi.org/10.6092/A8CFB472-10DB-4225-9737-5A60DA9AF523";
    String doi "10.6092/yftm-cq55";
    Float64 Easternmost_Easting 25.0;
    String file_name "Coastal areas/Baltic Sea - Gulf of Riga/Water_body_dissolved_inorganic_nitrogen_(DIN).nc";
    Float64 geospatial_lat_max 58.4;
    Float64 geospatial_lat_min 56.8;
    Float64 geospatial_lat_resolution 0.010000000000000009;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 25.0;
    Float64 geospatial_lon_min 22.3;
    Float64 geospatial_lon_resolution 0.009999999999999997;
    String geospatial_lon_units "degrees_east";
    String history 
"Sun May 23 13:53:06 2021: ncks -x -v obslon,obslat,obsdepth,obstime,obsid Water_body_dissolved_inorganic_nitrogen_DIN.nc Water_body_dissolved_inorganic_nitrogen_DIN_BalticSea.nc
Sun May 23 13:19:48 2021: ncks -O --no_tmp_fl --mk_rec_dmn time Water_body_dissolved_inorganic_nitrogen_(DIN)_Winter.nc n_Water_body_dissolved_inorganic_nitrogen_(DIN)_Winter.nc
2023-12-02T17:34:37Z http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/Coastal_areas/Baltic_Sea_-_Gulf_of_Riga/Water_body_dissolved_inorganic_nitrogen_(DIN).nc
2023-12-02T17:34:37Z https://erddap.emodnet.eu/griddap/Gulf_Riga_DIN_4D_b303_b5cd_d6cc.das";
    String id "DatasetScan/emodnet-domains/Coastal_areas/Baltic_Sea_-_Gulf_of_Riga/Water_body_dissolved_inorganic_nitrogen_(DIN).nc";
    String infoUrl "https://doi.org/10.6092/A8CFB472-10DB-4225-9737-5A60DA9AF523";
    String institution "Swedish Meteorological and Hydrological Institute";
    String institution_urn "SDN:EDMO::545";
    String keywords "analysis, baltic, body, data, depth, din, dissolved, divand, gulf, hydrological, inorganic, institute, latitude, longitude, meteorological, nitrogen, riga, sea, seasonal, seawater, swedish, time, v2021, water, water_body_dissolved_inorganic_nitrogen_(din), Water_body_dissolved_inorganic_nitrogen_28DIN_29, Water_body_dissolved_inorganic_nitrogen_28DIN_29_L1, Water_body_dissolved_inorganic_nitrogen_28DIN_29_L2, Water_body_dissolved_inorganic_nitrogen_28DIN_29_relerr";
    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 4.8.1-alpha03 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    Float64 Northernmost_Northing 58.4;
    String parameter_keyword "Water body dissolved inorganic nitrogen (DIN)";
    String parameter_keyword_urn "SDN:P35::EPC00198";
    String product_code "Gulf of Riga-Water_body_dissolved_inorganic_nitrogen_(DIN)-2.0-ANA";
    String product_id "ea75e3b0-bba3-11eb-12da-ddf543e6088a";
    String product_version "2.0";
    String project "EMODnet Chemistry - Phase 4";
    String search_keywords "Dissolved inorganic nitrogen concentration in the water column";
    String search_keywords_urn "SDN:P02::TDIN";
    String source "observational data from SeaDataNet/EMODnet Chemistry Data Network";
    String sourceUrl "http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/Coastal_areas/Baltic_Sea_-_Gulf_of_Riga/Water_body_dissolved_inorganic_nitrogen_(DIN).nc";
    Float64 Southernmost_Northing 56.8;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Baltic Sea - Gulf of Riga - DIVAnd 4D seasonal analysis of Water body dissolved inorganic nitrogen (DIN) 1994/2018 v2021. Seasonal climatology from time period 1994:2019. Horizontal resolution 0.01deg.";
    String time_coverage_end "2006-10-16T00:00:00Z";
    String time_coverage_start "2006-01-16T00:00:00Z";
    String title "Baltic Sea, Gulf of Riga, DIVAnd 4D seasonal analysis of Water body dissolved inorganic nitrogen (DIN) 1994/2018 v2021 [time][depth][lat][lon], 0.01deg, 2006";
    String WEB_visualisation "http://ec.oceanbrowser.net/emodnet/";
    Float64 Westernmost_Easting 22.3;
  }
}

 

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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