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Dataset Title:  Northeast Atlantic Ocean, Loire estuary, DIVAnd 4D seasonal analysis of Water
body phosphate 1964/2019 v2021 [time][depth][lat][lon], 1990
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Institution:  IFREMER, SISMER, Scientific Information Systems for the SEA   (Dataset ID: Loire_PO_4D_ec85_32d2_0a7c)
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 6.351264e+8, 6.587136e+8;
    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, 125.0;
    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 46.25, 47.99970626831055;
    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 -4.010000228881836, -1.0099315643310547;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Water_body_phosphate {
    Float32 _FillValue 9.96921e+36;
    String cell_methods "time: mean within years time: mean over years";
    String long_name "Water_body_phosphate";
    Float32 missing_value 9.96921e+36;
    String standard_name "water_body_phosphate";
    String units "umol/l";
  }
  Water_body_phosphate_L1 {
    Float32 _FillValue 9.96921e+36;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Water_body_phosphate masked using relative error threshold 0.3";
    Float32 missing_value 9.96921e+36;
    String standard_name "water_body_phosphate";
    String units "umol/l";
  }
  Water_body_phosphate_L2 {
    Float32 _FillValue 9.96921e+36;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Water_body_phosphate masked using relative error threshold 0.5";
    Float32 missing_value 9.96921e+36;
    String standard_name "water_body_phosphate";
    String units "umol/l";
  }
  Water_body_phosphate_relerr {
    Float32 _FillValue 9.96921e+36;
    Float64 colorBarMaximum 0.1;
    Float64 colorBarMinimum 0.0;
    String long_name "Relative error of Water_body_phosphate";
    Float32 missing_value 9.96921e+36;
    Float32 valid_max 1.0;
    Float32 valid_min 0.0;
  }
  NC_GLOBAL {
    String Acknowledgements "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 "Northeast Atlantic Ocean (40W)";
    String area_keywords_urn "SDN:C19::SVX00015";
    String author_e_mail "Nolwenn PAGES <nolwenn.pages@ifremer.fr>, Delphine LEROY <delphine.leroy@ifremer.fr>, Julie GATTI <julie.gatti@ifremer.fr>";
    String bathymetry_source "resolution: 0.01°. The tool Diva On Web (http://ec.oceanbrowser.net/emodnet/diva.html) based on the global GEBCO Digital Atlas, 30 sec";
    String cdm_data_type "Grid";
    String comment "Every range of the time corresponds to a season (Winter=Jan-Mar,Spring=Apr-Jun, Summer=Jul-Sep, Autumn=Oct-Dec). Horizontal resolution 0.01°.";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_name "IFREMER, SISMER, Scientific Information Systems for the SEA";
    String creator_type "institution";
    String creator_url "https://wwz.ifremer.fr/";
    String date "2021-04-09T22:56:19";
    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 "v2.7.4";
    String documentation "10.6092/A8CFB472-10DB-4225-9737-5A60DA9AF523";
    String doi "10.6092/6825-3g19";
    Float64 Easternmost_Easting -1.0099315643310547;
    String file_name "Coastal areas/Northeast Atlantic Ocean - Loire/Water_body_phosphate.nc";
    Float64 geospatial_lat_max 47.99970626831055;
    Float64 geospatial_lat_min 46.25;
    Float64 geospatial_lat_resolution 0.009998321533203125;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -1.0099315643310547;
    Float64 geospatial_lon_min -4.010000228881836;
    Float64 geospatial_lon_resolution 0.010000228881835938;
    String geospatial_lon_units "degrees_east";
    String history 
"observational data from SeaDataNet/EMODnet Chemistry Data Network
2023-12-01T14:13:49Z http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/Coastal_areas/Northeast_Atlantic_Ocean_-_Loire_River/Water_body_phosphate.nc
2023-12-01T14:13:49Z https://erddap.emodnet.eu/griddap/Loire_PO_4D_ec85_32d2_0a7c.das";
    String id "DatasetScan/emodnet-domains/Coastal_areas/Northeast_Atlantic_Ocean_-_Loire_River/Water_body_phosphate.nc";
    String infoUrl "http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/Coastal_areas/Northeast_Atlantic_Ocean_-_Loire_River/Water_body_phosphate.nc.html";
    String institution "IFREMER, SISMER, Scientific Information Systems for the SEA";
    String institution_urn "SDN:EDMO::486";
    String keywords "analysis, atlantic, body, data, depth, divand, error, estuary, exploitation, francais, ifremer, information, institut, latitude, loire, longitude, masked, mer, northeast, ocean, phosphate, po4, pour, recherche, relative, scientific, sea, seasonal, seawater, sismer, systems, threshold, time, using, v2021, water, water_body_phosphate, Water_body_phosphate_L1, Water_body_phosphate_L2, Water_body_phosphate_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.";
    Float64 Northernmost_Northing 47.99970626831055;
    String parameter_keywords "Water body phosphate";
    String parameter_keywords_urn "SDN:P35::EPC00007";
    String product_code "Loire-Water_body_phosphate-v2021-ANA";
    String product_id "ef713d60-a19f-11eb-194f-f5f8305af22d";
    String product_version "2.0";
    String project "EMODNET Chemistry - Phase 4";
    String search_keywords "Phosphate concentration parameters in the water column";
    String search_keywords_urn "SDN:P02::PHOS";
    String source "observational data from SeaDataNet/EMODnet Chemistry Data Network";
    String sourceUrl "http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-domains/Coastal_areas/Northeast_Atlantic_Ocean_-_Loire_River/Water_body_phosphate.nc";
    Float64 Southernmost_Northing 46.25;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Northeast Atlantic Ocean - Loire estuary - DIVAnd 4D seasonal analysis of Water body phosphate 1964/2019 v2021. Every range of the time corresponds to a season (Winter=Jan-Mar,Spring=Apr-Jun, Summer=Jul-Sep, Autumn=Oct-Dec). Horizontal resolution 0.01deg.";
    String time_coverage_end "1990-11-16T00:00:00Z";
    String time_coverage_start "1990-02-16T00:00:00Z";
    String title "Northeast Atlantic Ocean, Loire estuary, DIVAnd 4D seasonal analysis of Water body phosphate 1964/2019 v2021 [time][depth][lat][lon], 1990";
    Float64 Westernmost_Easting -4.010000228881836;
  }
}

 

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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