Data · dataset
Northeast Atlantic Ocean, DIVAnd 4D seasonal 6-year average analysis of Water body chlorophyll-a 1971/2024 v2025 [time][lat][lon], 0.1deg, 1973-2021
Listed in European Marine Observation and Data Network (EMODnet) ERDDAP
Northeast Atlantic Ocean - DIVAnd 4D seasonal 6-year average analysis of Water body chlorophyll-a 1971/2024 v2025.
Description
Moving 6-year analysis of Water body chlorophyll-a 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. High-frequency observation trails were filtered to a 3h temporal resolution. 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].
Read the rest (3 more)
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 200km 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: mg/m3.
Links
Where it is published
- ERDDAP dataset info erddap.emodnet.eu/erddap/info/oceanbrowser_opendap_6857_e105_0ad5/index.html ↗
landing page · from erddap emodnet eu
Documentation and papers
- Dataset documentation opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/By_sea_regions-water… ↗
documentation · from erddap emodnet eu
Catalogue records · 1
- ERDDAP griddap access form erddap.emodnet.eu/erddap/griddap/oceanbrowser_opendap_6857_e105_0ad5.html ↗
metadata API · from erddap emodnet eu
Topics
- From keywords
- Ocean & Atmospheric Science
Provenance · 1 source records, 6 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| European Marine Observation and Data Network (EMODnet) ERDDAP | oceanbrowser_opendap_6857_e105_0ad5 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · erddap emodnet eu | connector:erddap_emodnet_eu@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · erddap emodnet eu | connector:erddap_emodnet_eu@1.0.0 | |
| description | source · erddap emodnet eu | connector:erddap_emodnet_eu@1.0.0 | /summary |
| spatial | source · erddap emodnet eu | connector:erddap_emodnet_eu@1.0.0 | |
| temporal | source · erddap emodnet eu | connector:erddap_emodnet_eu@1.0.0 | |
| title | source · erddap emodnet eu | connector:erddap_emodnet_eu@1.0.0 | /title |