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In this paper, the main statements of the problem of a non-zonal vortex layer on the β-plane in the Miles - Ribner formulation are applied to observations in the real ocean. Earlier, we showed that when waves interact with a non-zonal flow, a new class of solutions appears, which is absent in the case of a zonal flow. This new class of solutions can be interpreted as pure radiation of Rossby waves by a nonzonal flow. The analysis of the space-time diagrams in the region under consideration confirms the previously obtained theoretical conclusions of the problem of the interaction of planetary waves with a non-zonal flow on the β-plane in the Miles - Ribner formulation. Incident, reflected and refracted waves are distinguished. It is shown that Rossby waves propagating from east to west at a speed of 7.6 cm/s are transformed into refracted and reflected waves when interacting with the current. The refracted waves propagate against the current, to the southwest, at a speed of 4.6 cm/s. The reflected waves propagate to the southeast, perpendicular to the current, at a speed of 7.8 cm/s. The speed of reflected waves exceeds the speed of incident waves, which confirms the conclusions about the existence of mechanisms for amplifying planetary waves when they interact with a non-zonal flow.

Translated title of the contributionApplication of the vortex layer problem to the Gulf Stream area
Original languageRussian
Pages (from-to)242–251
Number of pages10
JournalСОВРЕМЕННЫЕ ПРОБЛЕМЫ ДИСТАНЦИОННОГО ЗОНДИРОВАНИЯ ЗЕМЛИ ИЗ КОСМОСА
Volume18
Issue number5
DOIs
StatePublished - 2021

    Scopus subject areas

  • Computers in Earth Sciences
  • Computer Networks and Communications
  • Computer Science Applications

    Research areas

  • Altimetry, Flow, Gulf Stream, Incident, Reflected, Refracted wave, Rossby waves, Vortex layer, WKB approximation

ID: 88341676