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 data       graph  M    Northeast Atlantic Ocean, DIVAnd 4D seasonal 6-year average analysis of Water body dissolved
inorganic nitrogen 1971/2021 v2023 [time][depth][lat][lon], 0.1°, 1973-2018 		   ?   F   I   M   background (external link) RSS Subscribe
IFREMER, SISMER, ...  ?
V2023_chemistry_f746_0d80_f342

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 2016/2021. Observation data span from 1971 to 2021.
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.
Descrption of DIVAnd analysis: the computation was done with DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.4, 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> Julie GATTI <julie.gatti@ifremer.fr>
attribute NC_GLOBAL bathymetry_source String resolution: 0.1 degree, based on the global GEBCO Digital Atlas, 30 sec, 2014
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL citation String 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"
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 2023-05-17T16:13:16.298
attribute NC_GLOBAL DIVA_references String 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
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 v2.7.9
attribute NC_GLOBAL doi String https://doi.org/10.13120/fde9b782-cb3d-4c83-9f4c-2546b78e092f (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 Fri Sep 1 10:35:43 2023: ncks -O Water_body_dissolved_inorganic_nitrogen.4Danl.nc Water_body_dissolved_inorganic_nitrogen.4Danl.nc
attribute NC_GLOBAL id String DatasetScan/emodnet-projects/v2023/By_sea_regions/Northeast_Atlantic_Ocean/Water_body_dissolved_inorganic_nitrogen.4Danl.nc
attribute NC_GLOBAL infoUrl String http://opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2023/By_sea_regions/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, depth, dissolved, divand, error, exchange, exploitation, francais, ifremer, information, inorganic, institut, international, iode, latitude, longitude, masked, mer, nitrogen, northeast, ocean, oceanographic, pour, recherche, relative, scientific, sea, seasonal, seawater, sismer, statistics, systems, threshold, time, using, v2023, water, water_body_dissolved_inorganic_nitrogen, Water_body_dissolved_inorganic_nitrogen_L1, Water_body_dissolved_inorganic_nitrogen_L2, Water_body_dissolved_inorganic_nitrogen_relerr, 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 4.9.9 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)
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-v2023-ANA
attribute NC_GLOBAL product_id String fde9b782-cb3d-4c83-9f4c-2546b78e092f
attribute NC_GLOBAL product_version String 3
attribute NC_GLOBAL project String EMODNET Chemistry - 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/v2023/By_sea_regions/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 1971/2021 v2023. 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 2016/2021. Observation data span from 1971 to 2021.
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.
Descrption of DIVAnd analysis: the computation was done with DIVAnd (Data-Interpolating Variational Analysis in n dimensions), version 2.7.4, 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 time_coverage_end String 2018-11-16T00:00:00Z
attribute NC_GLOBAL time_coverage_start String 1973-02-16T00:00:00Z
attribute NC_GLOBAL title String Northeast Atlantic Ocean, DIVAnd 4D seasonal 6-year average analysis of Water body dissolved inorganic nitrogen 1971/2021 v2023 [time][depth][lat][lon], 0.1°, 1973-2018
attribute NC_GLOBAL Westernmost_Easting double -42.0
dimension time   double nValues=184, evenlySpaced=false, averageSpacing=91 days 7h 20m 39s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 9.86688E7, 1.5423264E9
attribute time axis String T
attribute time calendar String standard
attribute time climatology String climatology_bounds
attribute time ioos_category String Time
attribute time long_name String Time
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
dimension depth   double nValues=28, evenlySpaced=false, averageSpacing=74.07407407407408
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth actual_range double 0.0, 2000.0
attribute depth axis String Z
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
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_L1   float time, depth, latitude, longitude
attribute Water_body_dissolved_inorganic_nitrogen_L1 _FillValue float 9.96921E36
attribute Water_body_dissolved_inorganic_nitrogen_L1 colorBarMaximum double 50.0
attribute Water_body_dissolved_inorganic_nitrogen_L1 colorBarMinimum double 0.0
attribute Water_body_dissolved_inorganic_nitrogen_L1 ioos_category String Statistics
attribute Water_body_dissolved_inorganic_nitrogen_L1 long_name String Water body dissolved inorganic nitrogen masked using relative error threshold 0.3
attribute Water_body_dissolved_inorganic_nitrogen_L1 missing_value float 9.96921E36
attribute Water_body_dissolved_inorganic_nitrogen_L1 standard_name String water_body_dissolved_inorganic_nitrogen
attribute Water_body_dissolved_inorganic_nitrogen_L1 units String umol/l
variable Water_body_dissolved_inorganic_nitrogen_L2   float time, depth, latitude, longitude
attribute Water_body_dissolved_inorganic_nitrogen_L2 _FillValue float 9.96921E36
attribute Water_body_dissolved_inorganic_nitrogen_L2 colorBarMaximum double 50.0
attribute Water_body_dissolved_inorganic_nitrogen_L2 colorBarMinimum double 0.0
attribute Water_body_dissolved_inorganic_nitrogen_L2 ioos_category String Statistics
attribute Water_body_dissolved_inorganic_nitrogen_L2 long_name String Water body dissolved inorganic nitrogen masked using relative error threshold 0.5
attribute Water_body_dissolved_inorganic_nitrogen_L2 missing_value float 9.96921E36
attribute Water_body_dissolved_inorganic_nitrogen_L2 standard_name String water_body_dissolved_inorganic_nitrogen
attribute Water_body_dissolved_inorganic_nitrogen_L2 units String umol/l
variable Water_body_dissolved_inorganic_nitrogen_relerr   float time, depth, latitude, longitude
attribute Water_body_dissolved_inorganic_nitrogen_relerr _FillValue float 9.96921E36
attribute Water_body_dissolved_inorganic_nitrogen_relerr colorBarMaximum double 0.1
attribute Water_body_dissolved_inorganic_nitrogen_relerr colorBarMinimum double 0.0
attribute Water_body_dissolved_inorganic_nitrogen_relerr ioos_category String Statistics
attribute Water_body_dissolved_inorganic_nitrogen_relerr long_name String Relative error of Water body dissolved inorganic nitrogen
attribute Water_body_dissolved_inorganic_nitrogen_relerr missing_value float 9.96921E36
attribute Water_body_dissolved_inorganic_nitrogen_relerr units String 1
attribute Water_body_dissolved_inorganic_nitrogen_relerr valid_max float 1.0
attribute Water_body_dissolved_inorganic_nitrogen_relerr valid_min float 0.0

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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