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Northeast Atlantic Ocean, DIVAnd 4D seasonal 6-year average analysis of Water body phosphate 1950/2021 v2023 [time][depth][lat][lon], 0.1°, 1952-2018

Listed in European Marine Observation and Data Network (EMODnet) ERDDAP

Northeast Atlantic Ocean - DIVAnd 4D seasonal 6-year average analysis of Water body phosphate 1950/2021 v2023.

Description

Moving 6-year analysis of Water body phosphate 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 1950/1955 until 2016/2021.

Observation data span from 1950 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.

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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 250km 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.

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Topics

Inferred from text
Oceanography 70%
Provenance · 1 source records, 7 field assertions
SourceKeyLast seenRaw
European Marine Observation and Data Network (EMODnet) ERDDAPV2023_chemistry_950a_3773_51865 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · erddap emodnet euconnector:erddap_emodnet_eu@1.0.0
concepts[field].anzsrc:group:3708enrichment · erddap emodnet eutaxonomy-embedding@1.1.0title+keywords+description (70%)
concepts[field].local:field:ocean-atmosphericmapping · erddap emodnet euconnector:erddap_emodnet_eu@1.0.0
descriptionsource · erddap emodnet euconnector:erddap_emodnet_eu@1.0.0/summary
spatialsource · erddap emodnet euconnector:erddap_emodnet_eu@1.0.0
temporalsource · erddap emodnet euconnector:erddap_emodnet_eu@1.0.0
titlesource · erddap emodnet euconnector:erddap_emodnet_eu@1.0.0/title