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 data       graph     Northeast Atlantic Ocean, DIVAnd 4D seasonal 6-year average analysis of Water body dissolved
inorganic nitrogen 1971/2024 v2025 [lat][lon], 0.1° 		   ?   F   I   M   background (external link) RSS Subscribe
IFREMER, SISMER, ...  ?
oceanbrowser_opendap_f4df_7588_12d4

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL abstract String Moving 6-year analysis of Water body dissolved inorganic nitrogen in the NorthEast Atlantic for each season:
- winter: January-March,
- spring: April-June,
- summer: July-September,
- autumn: October-December.
Every year of the time dimension corresponds to the 6-year centred average of each season. 6-year periods span from 1971/1976 until 2019/2024. Observation data span from 1971 to 2024.
Depth levels (IODE standard depths): [0.0, 5.0, 10.0, 20.0, 30.0, 40.0, 50.0, 75.0, 100.0, 125.0, 150.0, 200.0, 250.0, 300.0, 400.0, 500.0, 600.0, 700.0, 800.0, 900.0, 1000.0, 1100.0, 1200.0, 1300.0, 1400.0, 1500.0, 1750.0, 2000.0].
Data sources: observational data from SeaDataNet/EMODNet Chemistry Data Network.
Description of DIVAnd analysis: the computation was done with DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.12, using GEBCO 30 sec topography for the spatial connectivity of water masses. The horizontal resolution of the produced DIVAnd maps is 0.1 degrees. Horizontal correlation length varies from 400km in open sea regions to 50km at the coast. Vertical correlation length is defined as twice the vertical resolution. Signal-to-noise ratio was fixed to 1 for vertical profiles and 0.1 for time series to account for the redundancy in the time series observations. A logarithmic transformation (DIVAnd.loglin) was applied to the data prior to the analysis. Background field: a vertically-filtered profile of the seasonal data mean value (including all years) is substracted from the data.
Detrending of data: no, advection constraint applied: no.
Units: umol/l.
attribute NC_GLOBAL Acknowledgements String Aggregated data products are generated by EMODnet Chemistry under the support of DG MARE Call for Tenders EASME/2020/OP/0006 (EASME/EMFF/2020/3.1.11/Lot 5/SI2.846161).
attribute NC_GLOBAL area_keywords String Northeast Atlantic Ocean (40W)
attribute NC_GLOBAL area_keywords_urn String SDN:C19::SVX00015
attribute NC_GLOBAL Author_email String Quitterie CAZENAVE <quitterie.cazenave@ifremer.fr> Gaëlle HERBERT <gaelle.herbert@ifremer.fr> Julie GATTI <julie.gatti@ifremer.fr>
attribute NC_GLOBAL bathymetry_source String resolution: 0.1°, based on the global GEBCO Digital Atlas, 30 sec, 2014
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL Conventions String CF-1.6, COARDS, ACDD-1.3
attribute NC_GLOBAL creator_name String IFREMER, SISMER, Scientific Information Systems for the SEA
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://wwz.ifremer.fr/ (external link)
attribute NC_GLOBAL date String 2025-11-03T12:30:11.509
attribute NC_GLOBAL DIVAnd_code_doi String 10.5281/zenodo.7016823
attribute NC_GLOBAL DIVAnd_references String 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
attribute NC_GLOBAL DIVAnd_source String https://github.com/gher-uliege/DIVAnd.jl (external link)
attribute NC_GLOBAL DIVAnd_version String v2.7.12
attribute NC_GLOBAL doi String https://doi.org/10.13120/3ffdd845-d11d-4288-b727-5d69539b047e (external link)
attribute NC_GLOBAL Easternmost_Easting double -0.1
attribute NC_GLOBAL file_name String Water_body_dissolved_inorganic_nitrogen.4Danl.nc
attribute NC_GLOBAL geospatial_lat_max double 47.9
attribute NC_GLOBAL geospatial_lat_min double 25.0
attribute NC_GLOBAL geospatial_lat_resolution double 0.09999999999999999
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -0.1
attribute NC_GLOBAL geospatial_lon_min double -42.0
attribute NC_GLOBAL geospatial_lon_resolution double 0.09999999999999999
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String Thu Nov 6 16:37:59 2025: ncks -7 -O -L 5 --baa=4 --ppc default=3 /media/ctroupin/T7 Shield/data/EMODnet-Chemistry/Eutrophication2024/Results/By_sea_regions-water_body/Northeast_Atlantic_Ocean/Water_body_dissolved_inorganic_nitrogen.4Danl.nc /media/ctroupin/T7 Shield/data/EMODnet-Chemistry/Eutrophication2024/Results/By_sea_regions-water_body/Northeast_Atlantic_Ocean/Water_body_dissolved_inorganic_nitrogen.4Danl.nc
attribute NC_GLOBAL id String DatasetScan/emodnet-projects/v2025/By_sea_regions-water_body/Northeast_Atlantic_Ocean/Water_body_dissolved_inorganic_nitrogen.4Danl.nc
attribute NC_GLOBAL infoUrl String http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/By_sea_regions-water_body/Northeast_Atlantic_Ocean/Water_body_dissolved_inorganic_nitrogen.4Danl.nc.html (external link)
attribute NC_GLOBAL institution String IFREMER, SISMER, Scientific Information Systems for the SEA
attribute NC_GLOBAL institution_urn String SDN:EDMO::486
attribute NC_GLOBAL keywords String 6-year, analysis, atlantic, average, body, data, deepest, depth, dissolved, divand, exchange, exploitation, francais, ifremer, information, inorganic, institut, international, iode, latitude, longitude, mer, nitrogen, northeast, ocean, oceanographic, pour, recherche, scientific, sea, seasonal, seawater, sismer, systems, v2025, water, Water_body_dissolved_inorganic_nitrogen_deepest_depth, year
attribute NC_GLOBAL license String 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.
attribute NC_GLOBAL NCO String 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)
attribute NC_GLOBAL Northernmost_Northing double 47.9
attribute NC_GLOBAL parameter_keyword String Water body dissolved inorganic nitrogen
attribute NC_GLOBAL parameter_keyword_urn String SDN:P35::EPC00198
attribute NC_GLOBAL product_code String Atlantic-Water_body_dissolved_inorganic_nitrogen-v2025-ANA
attribute NC_GLOBAL product_id String 3ffdd845-d11d-4288-b727-5d69539b047e
attribute NC_GLOBAL product_version String 1
attribute NC_GLOBAL project String EMODNET Chemistry â€" Phase 5
attribute NC_GLOBAL search_keywords String Dissolved inorganic nitrogen concentration in the water column
attribute NC_GLOBAL search_keywords_urn String SDN:P02::TDIN
attribute NC_GLOBAL source String observational data from SeaDataNet/EMODnet Chemistry Data Network
attribute NC_GLOBAL sourceUrl String http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/By_sea_regions-water_body/Northeast_Atlantic_Ocean/Water_body_dissolved_inorganic_nitrogen.4Danl.nc (external link)
attribute NC_GLOBAL Southernmost_Northing double 25.0
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String Northeast Atlantic Ocean - DIVAnd 4D seasonal 6-year average analysis of Water body dissolved inorganic nitrogen 1971/2024 v2025. Moving 6-year analysis of Water body dissolved inorganic nitrogen in the NorthEast Atlantic for each season:
- winter: January-March,
- spring: April-June,
- summer: July-September,
- autumn: October-December.
Every year of the time dimension corresponds to the 6-year centred average of each season. 6-year periods span from 1971/1976 until 2019/2024. Observation data span from 1971 to 2024.
Depth levels (International Oceanographic Data Exchange (IODE) standard depths): [0.0, 5.0, 10.0, 20.0, 30.0, 40.0, 50.0, 75.0, 100.0, 125.0, 150.0, 200.0, 250.0, 300.0, 400.0, 500.0, 600.0, 700.0, 800.0, 900.0, 1000.0, 1100.0, 1200.0, 1300.0, 1400.0, 1500.0, 1750.0, 2000.0].
Data sources: observational data from SeaDataNet/EMODNet Chemistry Data Network.
Description of DIVAnd analysis: the computation was done with DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.12, using GEBCO 30 sec topography for the spatial connectivity of water masses. The horizontal resolution of the produced DIVAnd maps is 0.1 degrees. Horizontal correlation length varies from 400km in open sea regions to 50km at the coast. Vertical correlation length is defined as twice the vertical resolution. Signal-to-noise ratio was fixed to 1 for vertical profiles and 0.1 for time series to account for the redundancy in the time series observations. A logarithmic transformation (DIVAnd.loglin) was applied to the data prior to the analysis. Background field: a vertically-filtered profile of the seasonal data mean value (including all years) is substracted from the data.
Detrending of data: no, advection constraint applied: no.
Units: umol/l.
attribute NC_GLOBAL title String Northeast Atlantic Ocean, DIVAnd 4D seasonal 6-year average analysis of Water body dissolved inorganic nitrogen 1971/2024 v2025 [lat][lon], 0.1°
attribute NC_GLOBAL Westernmost_Easting double -42.0
dimension latitude   double nValues=230, evenlySpaced=true, averageSpacing=0.09999999999999999
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double 25.0, 47.9
attribute latitude axis String Y
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
dimension longitude   double nValues=420, evenlySpaced=true, averageSpacing=0.09999999999999999
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double -42.0, -0.1
attribute longitude axis String X
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable Water_body_dissolved_inorganic_nitrogen_deepest_depth   float latitude, longitude
attribute Water_body_dissolved_inorganic_nitrogen_deepest_depth _FillValue float 9.96921E36
attribute Water_body_dissolved_inorganic_nitrogen_deepest_depth long_name String Inorganic nitrogen_dissolved deepest depth
attribute Water_body_dissolved_inorganic_nitrogen_deepest_depth lossy_compression String compression_info
attribute Water_body_dissolved_inorganic_nitrogen_deepest_depth lossy_compression_nsd int 3
attribute Water_body_dissolved_inorganic_nitrogen_deepest_depth missing_value float 9.96921E36
attribute Water_body_dissolved_inorganic_nitrogen_deepest_depth positive String down
attribute Water_body_dissolved_inorganic_nitrogen_deepest_depth QuantizeGranularBitRoundNumberOfSignificantDigits int 3
attribute Water_body_dissolved_inorganic_nitrogen_deepest_depth units String meters

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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