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Variability of saltwater flow in the Hoburg Channel, Baltic Sea: in situ measurements vs NEMO modelling

https://doi.org/10.59887/2073-6673.2024.17(2)-8

Abstract

A half-year long time series of the bottom layer velocity measured in situ in the Hoburg Channel displayed seven-day oscillations of the saltwater flow. The flow was characterized by alterations of surges with the increase of northward velocity to approximately 0.2–0.3 m/s and blockages when the northward velocity vanishes or becomes small negative. The measured time series of the northward velocity component was surprisingly highly correlated with the simulation by NEMO reanalysis at the correlation coefficient of 0.82 and the 95 % confidence limits of 0.76–0.86. The seven-day oscillations were accompanied by almost synchronous oscillations of the southeast component of the wind vector. It can be considered convincing evidence that the seven-day oscillations in the saltwater flow were caused by wind forcing.

About the Authors

V. T. Paka
Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation

Paka, Vadim T., Chief Researcher Scientist, Prof., Dr. Sci. (Phys.-Math.)

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID I‑6090-2016

Scopus Author ID7003547709



V. M. Zhurbas
Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation

Zhurbas, Victor M., Chief Researcher Scientist, Prof., Dr. Sci. (Phys.-Math.)

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID A‑7341-2009

Scopus Author ID6603968937



M. N. Golenko
Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation

GOLENKO, Mariya N., Senior Researcher Scientist, Cand.Sci. (Phys.-Math.)

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID K‑1544-2016

Scopus Author ID24080316600



A. O. Korzh
Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation

KORZH, Andrey O., Lead Engineer

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID L‑3192-2016

Scopus Author ID15080985900



A. A. Kondrashov
Shirshov Institute of Oceanology, Russian Academy of Sciences
Russian Federation

Kondrashov, Aleksey A., Junior Researcher Scientist

36 Nakhimovsky Prosp., Moscow 117997

WoS ResearcherID S‑2848-2016

Scopus Author ID36657225800



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Review

For citations:


Paka V.T., Zhurbas V.M., Golenko M.N., Korzh A.O., Kondrashov A.A. Variability of saltwater flow in the Hoburg Channel, Baltic Sea: in situ measurements vs NEMO modelling. Fundamental and Applied Hydrophysics. 2024;17(2):94-102. https://doi.org/10.59887/2073-6673.2024.17(2)-8

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ISSN 2073-6673 (Print)
ISSN 2782-5221 (Online)