CoChat
Sign Up
Cited by 20Oceanographic and Atmospheric ProcessesClimate variability and modelsCoastal and Marine Dynamics

Seasonal and inter-annual ONSET Sea Surface Temperature variability along the northern coast of the Gulf of Guinea

Open access
Sohou, Z., Koné, V., Da-Allada, Y.C., Djakouré, S., Bourlès, B., Racape, V., Degbe, G., Adje, C.·2020·Regional Studies in Marine Science
DOI 10.1016/j.rsma.2020.101129
Open this paper in CoChat — free account

Abstract

The aim of this study is to characterize the coastal upwelling variability at seasonal and inter-annual time scales in the northern Gulf of Guinea (NGoG) using Sea Surface Temperature (SST) collected with autonomous “ONSET” thermometers. Results show that the ONSET SST data are suitable for numerical model evaluation, and provide relevant information in addition to satellite and reanalysis data at seasonal cycle. The minor and major coastal upwellings are present in all the products. The inter-annual SST variability is more pronounced in the western part of the region (Côte d'Ivoire and Ghana) than in the eastern part (Benin and Nigeria). The pattern differences between the west and the east of the region highlight a large spatial variability of the SST in the NGoG. Indeed, the signal of the minor upwelling season is visible only in the west of the basin, namely between Cape Palmas and Cape Three Points. We also observe a well-established thermal gradient between the western and eastern parts of the basin. This gradient is increasing from west to east during the major upwelling season, and decreasing from east to west during the rest of the year. The coastal ONSET data allow to evidence higher SST anomalies than those deduced from satellite and reanalysis products. Although the cold or warm events observed in 2008, 2010 and 2012 are well detected by all products, only the ONSET data set reveal the strong negative SST anomaly observed in 2009 along the coast of Ghana and Côte d'Ivoire.

Integrity signals

Registry

Crossref · 10.1016/j.rsma.2020.101129

Cites

35 of 35 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. Lamb, 1992, Further case study of Tropical Atlantic surface atmospheric and oceanic patterns associated with sub-Saharan drought, J. Clim., 5, 476, 10.1175/1520-0442(1992)005<0476:FCSOTA>2.0.CO;2 · DOI
  2. Sohou, Z., Bourlès, B., Djiman, R., Aman, A., Folorunsho, R., Armah, A.K., Chuchla, R., Racapé, V., June 2014. PROPAO : a network of coastal temperature autonomous sensors in the north of the Gulf of Guinea. In: Hounkonnou, M. H., du Penhoat, Y. (Eds.), Proceeding of the Colloquium in Physical Oceanography and Applications, Cotonou, Republica of Benin, 7 November 2012, ISBN: 978-99919-1899-0.

Cited by

Sorted by citations

Related

Authors
Sohou, Z., Koné, V., Da-Allada, Y. C., Djakouré, S., Bourlès, B., Racape, V., Degbe, G., & Adje, C.
Affiliations
  • Université d'Abomey-Calavi (BJ)
  • Center for Marine and Oceanographic Research (CI)
  • Université Félix Houphouët-Boigny (CI)
  • Institut de Recherche pour le Développement (FR)
Corresponding author
Sohou, Z.
Venue
Regional Studies in Marine Science
Publisher
Elsevier BV
Published
2020-03
Volume
35
Pages
101129
ISSN
2352-4855 (ISSN-L)
DOI
10.1016/j.rsma.2020.101129
OpenAlex
W3004177062
Cited by
20
References
35
Citations by year
2026: 1 · 2025: 2 · 2024: 5 · 2023: 8 · 2022: 1 · 2021: 2 · 2020: 1
FWCI
1.42
Type
journal article
Language
en
Open access
Licence
Locations
  • Regional Studies in Marine Science (publishedVersion)
  • Institutional Archive of Ifremer (French Research Institute for Exploitation of the Sea) (submittedVersion, other-oa)
Funders
Institut de Recherche pour le Développement
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
  • Physical Sciences › Earth and Planetary Sciences › Earth-Surface Processes › Coastal and Marine Dynamics
Keywords
coastal upwelling, sea surface temperature variability, seasonal upwelling, interannual variability, sea surface temperature anomalies, temperature gradient, Cape Palmas

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review