Data Access Form

Dataset Title:	European seas, DIVAnd 4D monthly analysis of Water_body_chlorophyll-a 1960/ 2023 v2024 [time][depth][lat][lon], 0.25deg, 1991
Institution:	University of LiÃ¨ge, GeoHydrodynamics and Environment Research (Dataset ID: oceanbrowser_opendap_18b5_d15b_ef5f)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Make a graph

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Dimensions	Size	Spacing
time (UTC)	12	30 days 8h 43m 38s (uneven)

depth (m)	102	54.45545 (uneven)

latitude (degrees_north)	237	0.25 (even)

longitude (degrees_east)	461	0.25 (even)

Grid Variables (which always also download all of the dimension variables)

Water_body_chlorophyll_a (mg/m3)

Water_body_chlorophyll_a_L1 (mg/m3)

Water_body_chlorophyll_a_L2 (mg/m3)

Water_body_chlorophyll_a_relerr (1)

File type: (more information)

(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 6.63984e+8, 6.928416e+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, 5500.0;
    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 24.0, 83.0;
    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 -45.0, 70.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Water_body_chlorophyll_a {
    Float32 _FillValue 9.96921e+36;
    String cell_methods "time: mean within years time: mean over years";
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String long_name "Chlorophyll-a";
    String lossy_compression "compression_info";
    Int32 lossy_compression_nsd 3;
    Float32 missing_value 9.96921e+36;
    Int32 QuantizeGranularBitRoundNumberOfSignificantDigits 3;
    String standard_name "mass_concentration_of_chlorophyll_in_sea_water";
    String units "mg/m3";
  }
  Water_body_chlorophyll_a_L1 {
    Float32 _FillValue 9.96921e+36;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Chlorophyll-a masked using relative error threshold 0.3";
    String lossy_compression "compression_info";
    Int32 lossy_compression_nsd 3;
    Float32 missing_value 9.96921e+36;
    Int32 QuantizeGranularBitRoundNumberOfSignificantDigits 3;
    String standard_name "mass_concentration_of_chlorophyll_in_sea_water";
    String units "mg/m3";
  }
  Water_body_chlorophyll_a_L2 {
    Float32 _FillValue 9.96921e+36;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Chlorophyll-a masked using relative error threshold 0.5";
    String lossy_compression "compression_info";
    Int32 lossy_compression_nsd 3;
    Float32 missing_value 9.96921e+36;
    Int32 QuantizeGranularBitRoundNumberOfSignificantDigits 3;
    String standard_name "mass_concentration_of_chlorophyll_in_sea_water";
    String units "mg/m3";
  }
  Water_body_chlorophyll_a_relerr {
    Float32 _FillValue 9.96921e+36;
    Float64 colorBarMaximum 0.1;
    Float64 colorBarMinimum 0.0;
    String long_name "Chlorophyll-a relative error";
    String lossy_compression "compression_info";
    Int32 lossy_compression_nsd 3;
    Float32 missing_value 9.96921e+36;
    Int32 QuantizeGranularBitRoundNumberOfSignificantDigits 3;
    String units "1";
    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 EASME/EMFF/2016/006-lot4, EASME/2019/OP/0003-lot4.";
    String Acknowledgements "Aggregated data products are generated by EMODnet Chemistry under the support of DG MARE Call for Tenders EASME/EMFF/2016/006-lot4, EASME/2019/OP/0003-lot4.";
    String area_keywords_urn "SDN:C19::9, SDN:C19::1, SDN:C19::3_3, SDN:C19::2, SDN:C19::1_2, SDN:C19::3_1";
    String Author_e_mail "Charles Troupin <ctroupin@uliege.be>, Alexander Barth <A.Barth@uliege.be>";
    String bathymetry_source "GEBCO Compilation Group (2020) GEBCO 2020 Grid (doi:10.5285/a29c5465-b138-234d-e053-6c86abc040b9)";
    String cdm_data_type "Grid";
    String citation "Usage is subject to mandatory citation: \"This resource was generated in the framework of EMODnet Chemistry, under the support of DG MARE Call for Tender EASME/EMFF/2020/3.1.11/European Marine Observation and Data Network (EMODnet) - Lot 5 - Chemistry\"";
    String comment "Monthly climatology";
    String Conventions "CF-1.62, COARDS, ACDD-1.3";
    String creator_name "University of Liege, GeoHydrodynamics and Environment Research";
    String creator_type "institution";
    String creator_url "https://doi.org/10.13120/fa5c704a-a5ea-4f60-91b5-2bf6a7aded45";
    String data_access "https://emodnet.ec.europa.eu/geoviewer";
    String date "2024-12-09T21:55:14";
    String DIVA_references "Barth, A., Beckers, J.-M., Troupin, C., Alvera-Azcarate, A., and Vandenbulcke, L. (2014): divand-1.0: n-dimensional variational data analysis for ocean observations, Geosci. Model Dev., 7, 225-241, doi: 10.5194/gmd-7-225-2014";
    String DIVAnd_code_doi "https://doi.org/10.5281/zenodo.1303229";
    String DIVAnd_reference "Barth, A.; Beckers, J.-M.; Troupin, C.; Alvera-Azcarate, 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-uliege/DIVAnd.jl";
    String DIVAnd_version "2.7.12";
    String documentation "https://doi.org/10.13120/fa5c704a-a5ea-4f60-91b5-2bf6a7aded45";
    String doi "https://doi.org/10.13120/e3972848-b66f-11ef-2e7d-65dd7160e34b";
    Float64 Easternmost_Easting 70.0;
    String file_name "/home/ulg/gher/ctroupin/data/EMODnet-Chemistry/Case/Water_body_chlorophyll-a-res-0.25-epsilon2-2.0-varlen1-lb5-maxit-5000-reltol-1.0e-9-bathcl-go-exclude-mL-1960-exNS2-monthly/Results/Water_body_chlorophyll-a_monthly.nc";
    Float64 geospatial_lat_max 83.0;
    Float64 geospatial_lat_min 24.0;
    Float64 geospatial_lat_resolution 0.25;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 70.0;
    Float64 geospatial_lon_min -45.0;
    Float64 geospatial_lon_resolution 0.25;
    String geospatial_lon_units "degrees_east";
    String history 
"Fri May 16 15:36:39 2025: ncks -7 -O -L 5 --baa=4 --ppc default=3 Water_body_chlorophyll-a.nc Water_body_chlorophyll-a_c.nc
Fri Jan 17 09:57:48 2025: ncks -O Water_body_chlorophyll-a_monthly.nc Water_body_chlorophyll-a_monthly.nc
2026-04-05T16:43:24Z http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/All_European_Seas-water_body/Water_body_chlorophyll-a.nc
2026-04-05T16:43:24Z https://erddap.emodnet.eu/erddap/griddap/oceanbrowser_opendap_18b5_d15b_ef5f.das";
    String id "DatasetScan/emodnet-projects/v2025/All_European_Seas-water_body/Water_body_chlorophyll-a.nc";
    String infoUrl "https://doi.org/10.13120/fa5c704a-a5ea-4f60-91b5-2bf6a7aded45";
    String institution "University of LiÃ¨ge, GeoHydrodynamics and Environment Research";
    String institution_urn "SDN:EDMO::1579";
    String keywords "analysis, body, chla, chlorophyll, chlorophyll-a, data, depth, divand, environment, european, geohydrodynamics, latitude, li\\u00c3\\u00a3\\u00c2\\u00a8ge, longitude, month, monthly, research, seas, time, university, v2024, water, Water_body_chlorophyll_a, Water_body_chlorophyll_a_L1, Water_body_chlorophyll_a_L2, Water_body_chlorophyll_a_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 5.2.1 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco, Citation = 10.1016/j.envsoft.2008.03.004)";
    Float64 Northernmost_Northing 83.0;
    String parameter_keyword "Water body chlorophyll-a";
    String parameter_keyword_urn "SDN:P35::EPC00105";
    String product_code "All Europeans Seas-Water body chlorophyll-a-v2024-ANA";
    String product_id "e3972848-b66f-11ef-2e7d-65dd7160e34b";
    String product_version "v2024";
    String production "University of LiÃ¨ge, GeoHydrodynamics and Environment Research";
    String project "EMODnet Chemistry - Phase 5";
    String search_keywords "Chlorophyll pigment concentrations in water bodies";
    String search_keywords_urn "SDN:P02::CPWC";
    String source "Observational data from SeaDataNet/EMODnet Chemistry Data Network";
    String sourceUrl "http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/All_European_Seas-water_body/Water_body_chlorophyll-a.nc";
    Float64 Southernmost_Northing 24.0;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "European seas - DIVAnd 4D monthly analysis of Water_body_chlorophyll-a 1960/2023 v2024. Monthly climatology. University of Liege, GeoHydrodynamics and Environment Research data from http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/All_European_Seas-water_body/Water_body_chlorophyll-a.nc.das .";
    String time_coverage_end "1991-12-16T00:00:00Z";
    String time_coverage_start "1991-01-16T00:00:00Z";
    String title "European seas, DIVAnd 4D monthly analysis of Water_body_chlorophyll-a 1960/2023 v2024 [time][depth][lat][lon], 0.25deg, 1991";
    String WEB_visualisation "https://emodnet.ec.europa.eu/geoviewer";
    Float64 Westernmost_Easting -45.0;
  }
}

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