Boundary-Layer Meteorology

, Volume 48, Issue 1–2, pp 177–195

An ice breeze mechanism for boundary-layer jets

  • Rolf H. Langland
  • Paul M. Tag
  • Robert W. Fett
Research Note


The existence of a low-level (z=~1000 m) jet adjacent to a sea-ice boundary is investigated with a two-dimensional numerical model. A thermally-direct ice breeze circulation is induced by specifying an ice-sea surface temperature gradient, with the mean geostrophic wind parallel to the ice edge. Pressure changes associated with over-water mixed-layer development create an increase in geostrophic velocity that accounts for most of the increase in wind speed. A change in initial geostrophic wind direction has significant effects on location and intensity of the low-level jet; geostrophic winds parallel to the ice edge result in stronger jets than occur with cross-ice geostrophic winds. An inertial oscillation simulated by the model in 1-D makes a negligible contribution to the low-level jet.


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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • Rolf H. Langland
    • 1
  • Paul M. Tag
    • 1
  • Robert W. Fett
    • 1
  1. 1.Naval Environmental Prediction Research FacilityMontereyUSA

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