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Impact of mesoscale eddies on surface flow between the Pacific Ocean and the Bering Sea across the Near Strait

2013/05/06 by S. V. Prants, A. A. Andreev, А. Г. Андреев +2 · 19 citations
Earth and Planetary Sciences · Environmental Science · Physics and Astronomy · #Anticyclone #Arctic and Antarctic ice dynamics #Climate variability and models #Climatology #Eddy #Flow (mathematics) #Flux (metallurgy) #Geography #Geology #Mesoscale meteorology #Meteorology #Ocean current #Oceanographic and Atmospheric Processes #Oceanography #Sea surface temperature #Sea-surface height #Turbulence #Wind stress #physics.ao-ph

paper · pdf · doi:10.1016/j.ocemod.2013.09.003

published in Ocean Modelling 72, 143-152 (Elsevier BV)

arxiv created 2013/05/06 · openalex publication_date 2013/09/18 · arxiv updated 2014/10/09 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Sea surface height anomalies observed by satellites in 1993--2012 are combined with simulation and observations by surface drifters and Argo floats to study water flow pattern in the Near Strait (NS) connected the Pacific Ocean with the Bering Sea. Daily Lagrangian latitudinal maps, computed with the AVISO surface velocity field, and calculation of the transport across the strait show that the flow through the NS is highly variable and controlled by mesoscale and submesoscale eddies in the area. On the seasonal scale, the flux through the western part of the NR is negatively correlated with the flux through its eastern part (r=-0.93). On the interannual time scale, a significant positive correlation (r=0.72) is diagnosed between the NS transport and the wind stress in winter. Increased southward component of the wind stress decreases the northward water transport through the strait. Positive wind stress curl over the strait area in winter--spring generates the cyclonic circulation and thereby enhances the southward flow in the western part (r=-0.68) and northward flow in the eastern part (r=0.61) of the NR. In fall, the water transport in different parts of the NS is determined by the strength of the anticyclonic mesoscale eddy located in the Alaskan Stream area.

Citations