Circulation in the Vicinity of Descending Overflows

Abstract

Analytic and numerical models have been used to study the large-scale circulation and exchange between marginal seas and the open ocean resulting from diapycnal mixing near lateral boundaries. The results indicate that mixing near topography can force strong circulations far from the region of mixing, sometimes extending into an adjacent ocean basin. The exchange between marginal seas and the open ocean will be strongly dependent on whether the marginal sea is connected to the open ocean by one strait (e.g., the Mediterranean Sea) or by two or more straits (e.g., the Sea of Japan). Islands and ridges generally provide a very effective means for communication and exchange between adjacent ocean basins. Spatially variable mixing over even a very weakly sloping bottom results in a fundamentally different horizontal circulation than does mixing over a flat bottom.

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Document Details

Document Type
Technical Report
Publication Date
Jan 22, 2001
Accession Number
ADA386234

Entities

People

  • Michael A. Spall

Organizations

  • Woods Hole Oceanographic Institution

Tags

DTIC Thesaurus Topics

  • Bodies Of Water
  • Boundaries
  • Boundary Layer
  • Deep Oceans
  • Department Of Defense
  • Entrainment
  • Geographic Regions
  • Geography
  • Landforms
  • Mediterranean Sea
  • Mixing
  • Ocean Basins
  • Oceans
  • Ridges
  • Sea Surface Temperature
  • Surface Temperature
  • Topography

Fields of Study

  • Environmental science

Readers

  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Oceanography.