Data · dataset
Northeast Atlantic Ocean, Loire River, DIVAnd 4D seasonal analysis of Water body dissolved inorganic nitrogen 1971/2024 v2025 [observations]
Listed in European Marine Observation and Data Network (EMODnet) ERDDAP
Northeast Atlantic Ocean - Loire River - DIVAnd 4D seasonal analysis of Water body dissolved inorganic nitrogen 1971/2024 v2025.
Description
Seasonal climatology of Water body dissolved inorganic nitrogen for Loire river for the period 1971-2024 and for the following seasons: - winter: January-March, - spring: April-June, - summer: July-September, - autumn: October-December. Observation data span from 1971 to 2024.
Depth levels (m): [0.0, 2.0, 4.0, 6.0, 8.0, 10.0, 15.0, 20.0, 25.0, 30.0, 35.0, 40.0, 45.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0, 110.0, 120.0, 130.0]. 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 15 sec topography for the spatial connectivity of water masses.
Read the rest (3 more)
The horizontal resolution of the produced DIVAnd maps is 0.01 degrees. Horizontal correlation length is defined seasonally (in meters): 72000 (winter), 43000 (spring), 215000 (summer), 150000 (autumn). Vertical correlation length was optimized and vertically filtered and a seasonally-averaged profile was used (DIVAnd.fitvertlen).
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: the vertically-filtered data mean profile is substracted from the data.
Detrending of data: no, advection constraint applied: no. Units: umol/l.
Links
Where it is published
- ERDDAP dataset info erddap.emodnet.eu/erddap/info/oceanbrowser_opendap_5c5e_b08a_9374/index.html ↗
landing page · from erddap emodnet eu
Documentation and papers
- Dataset documentation opendap.oceanbrowser.net/thredds/dodsC/data/emodnet-projects/v2025/Coastal_areas-water_… ↗
documentation · from erddap emodnet eu
Catalogue records · 1
- ERDDAP griddap access form erddap.emodnet.eu/erddap/griddap/oceanbrowser_opendap_5c5e_b08a_9374.html ↗
metadata API · from erddap emodnet eu
Topics
- From keywords
- Ocean & Atmospheric Science
Provenance · 1 source records, 4 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| European Marine Observation and Data Network (EMODnet) ERDDAP | oceanbrowser_opendap_5c5e_b08a_9374 | 8 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 |
| title | source · erddap emodnet eu | connector:erddap_emodnet_eu@1.0.0 | /title |