Catalogue PIGMA
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 (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.
Simple
- Alternate title
- Atlantic-Water_body_dissolved_inorganic_nitrogen-v2025-ANA
- Date (Creation)
- 2025-11-03
- Edition
- 1
- Identifier
- 3ffdd845-d11d-4288-b727-5d69539b047e
- Credit
- EMODnet Chemistry
+33 (0)2 98.22.46.44
http://data.ifremer.fr/SISMER
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https://lpg-umr6112.fr/index.php?lang=en
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https://www-iuem.univ-brest.fr/lemar/
http://www.cefas.co.uk/
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http://www.ieo.es/vigo
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https://www.locean-ipsl.upmc.fr/index.php?lang=fr
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http://www.qub.ac.uk/schools/SchoolofBiologicalSciences/
+351 292 200 401
http://www.horta.uac.pt/port
- GEMET - INSPIRE themes, version 1.0
- Theme
-
- EMODnet Chemistry
- Use limitation
- The data are available under the Creative Commons Attribution 4.0 International Public License (https://creativecommons.org/licenses/by/4.0/).
- Access constraints
- Other restrictions
- Other constraints
- Usage is subject to mandatory citation: "This resource was generated by EMODnet Chemistry under the support of DG MARE Call for Tender EASME/2019/OP/0003-lot4."
- Distance
- 0.1 degree
- Metadata language
- eng
- Topic category
-
- Oceans
- Description
- bounding box
))
- Begin date
- 1971
- End date
- 2024
Vertical extent
- Reference system identifier
- EPSG / WGS 84 (EPSG 4326)
- Number of dimensions
- 2
- Dimension name
- Vertical
- Dimension size
- 28
- Dimension name
- Time
- Resolution
- 89 day
- Cell geometry
- surface
- Transformation parameter availability
- No
- Distribution format
-
-
Climate and Forecast NetCDF
(
1.6
)
-
Climate and Forecast NetCDF
(
1.6
)
- OnLine resource
-
By sea regions/Northeast Atlantic Ocean/Water_body_dissolved_inorganic_nitrogen.4Danl.nc*Water_body_dissolved_inorganic_nitrogen_L1
(
OGC:WMS
)
WMS layer for Inorganic nitrogen_dissolved masked using relative error threshold 0.3
- OnLine resource
-
point:By sea regions/Northeast Atlantic Ocean/Water_body_dissolved_inorganic_nitrogen.4Danl.nc*obsid
(
OGC:WMS
)
WMS layer for Observations
- OnLine resource
- https://emodnet.ec.europa.eu/geoviewer/ ( WWW:LINK )
- OnLine resource
-
Digital Object Identifier (DOI)
(
DOI
)
Data Access and Citation
- OnLine resource
-
OPeNDAP
(
WWW:DOWNLOAD
)
OPeNDAP web page about the dataset Water_body_dissolved_inorganic_nitrogen.4Danl.nc
- OnLine resource
-
Direct Download (NetCDF)
(
WWW:DOWNLOAD
)
Direct Download (NetCDF)
- Hierarchy level
- Series
Conformance result
- Date (Publication)
- 2010-12-08
- Explanation
- See the referenced specification
- Statement
- The data used as input for this product have been extracted from the EMODnet Chemistry Download Service: http://emodnet-chemistry.maris2.nl/v_cdi_v3/search.asp
- Included with dataset
- No
- Feature types
- surface
- File identifier
- 3ffdd845-d11d-4288-b727-5d69539b047e XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Series
- Hierarchy level name
- Product record
- Date stamp
- 2025-11-18T13:28:23.313505Z
- Metadata standard name
- ISO 19115:2003/19139 - EMODNET - SDN
- Metadata standard version
- 1.0
Overviews
Spatial extent
Provided by
