Topographic experiments over dynamical processes in the Norwegian Sea

Tatyana V Belonenko; Vladimir S Travkin; Aleksey V Koldunov; Denis L Volkov

doi:doi:10.2205/2020ES000747

Topographic experiments over dynamical processes in the Norwegian Sea

Published в Russian Journal of Earth Sciences · Volume 21, Issue 1, 2021 · Rubrics: ORIGINAL ARTICLES

DOI 10.2205/2020ES000747

Received: 25.02.2021 Accepted: 25.02.2021 Published: 25.02.2021 Language of publication: ENG

Authors

Tatyana V Belonenko ¹ · Vladimir S Travkin ² · Aleksey V Koldunov ³ · Denis L Volkov ⁴

1 Saint Petersburg State University

2 Saint Petersburg State University

3 Saint Petersburg State University

4 Atlantic Oceanographic and Meteorological Laboratory, NOAA

ABSTRACT

The Norwegian Atlantic Current is significantly steered by large topographic features of the Norwegian Sea. The geometry of topographic features in the region is highly variable, but the influence of this variation on the formation of a quasi-permanent anticyclonic vortex located in the center of the Lofoten Basin (Lofoten Vortex) is poorly understood. Four sensitivity experiments with a regional configuration of the Massachusetts Institute of Technology general circulation model have been carried out with an objective to investigate the role of bottom topography on the formation of the Lofoten Vortex in the Norwegian Sea. We find that the bottom topography and especially the geometry of subsurface ridges are critical for the dynamics of the Norwegian Sea and stability of the Lofoten Vortex.

KEYWORDS

Norwegian Sea Lofoten Basin Norwegian Basin bottom topography MITgcm topography experiments

Information Text References

Authors:

1. Saint Petersburg State University

2. Saint Petersburg State University

3. Saint Petersburg State University

4. Atlantic Oceanographic and Meteorological Laboratory, NOAA

Type:

Article

Pages:

from to

Status:

Published

Language:

English

Keywords:

Norwegian Sea, Lofoten Basin, Norwegian Basin, bottom topography, MITgcm, topography experiments

Funding

The authors acknowledge the support of the Russian Science Foundation (RSF, project No. 18-17-00027). Numerical experiments were conducted by DLV with support from the NOAA Atlantic Oceanographic and Meteorological Laboratory under the auspices of the Cooperative Institute of Marine and Atmospheric Studies (CIMAS) of the University of Miami and NOAA, cooperative agreement NA20OAR4320472.

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