Computational mathematics

Cluster analysis of large-scale hydrodynamic characteristics of the Arctic seas based on the results of eddy-permitting modeling

G. A. Platov, E. N. Golubeva

Institute of Computational Mathematics and Mathematical Geophysics SB RAS, pr. Lavrentieva, 6, 630090, Novosibirsk, Russia

Abstract: The characteristics of the eddy mass transport are estimated depending on the values of the parameters of a large-scale flow that forms under the conditions of the shelf seas in the Arctic. For this, the results of numerical simulation of five Arctic seas with a horizontal resolution permitting the development of mesoscale eddies are used. The parameters obtained in numerical experiments are considered as a statistical sample and are analyzed for their independence. Further clusterization in space of found set of most independent variables allows to identify several separate types of eddies. The features of the resulting clustering are described and discussed in the presented work.

Keywords: eddy mass transport, subgrid-scale processes, parametrization, clustering.

UDC: 551.468

MSC: 86A05

Received November 30, 2023, published December 4, 2024

Language: English

DOI: 10.33048/semi.2024.21.079