Physical Oceanography

, 7:99 | Cite as

A simplified model for the transformation of the atmospheric planetary boundary layer overlying a thermal front in the sea

  • V. N. Kudryavtsev
Thermohydrodynamics of the Ocean


This paper discusses a simplified model for the evolution of the atmospheric planetary boundary layer overlying a thermal front in the sea. The model provides local values of the friction/heat transfer geostrophic coefficients and the direction of surface wind stress, as well as the wind/temperature profiles at any point on the front. With the running over a warm front, the baroclinicity of the internal boundary layer leads to the generation of a near-surface current of air directed down the front. The model can be used to interpret radar imagery of the sea surface with the purpose of determining its mesoscale variability.


Planetary Boundary Layer Geostrophic Wind Ekman Layer Internal Boundary Layer Thermal Wind 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    Mitnik, L.M., Bulatov, N.V. and Lobanov, V.B. Synoptic eddies in the ocean as observed by satellite-mounted radars.Dokl. Akad. Nauk SSSR (1989)307, 454–456.Google Scholar
  2. 2.
    Beal, R., Kudryavtsev, V., Tompson, D., Grodsky, S., Tilley, D.G. and Dulov, V. Interpretation of ERS-1 SAR imagery of the Gulf Stream using near-surface measurements from the R/VAkademik Vernadsky. J. Geophys. Res. (in press).Google Scholar
  3. 3.
    Weismann, D.E., Tompson, T.W. and Legeckis, R. Modulation of sea surface radar cross-section by surface stress: wind speed and temperature effects across the Gulf Stream.J. Geophys. Res. (1980)85, 5032–5042.Google Scholar
  4. 4.
    Donelan, M.A. and Pierson, W.J. Radar scattering and equilibrium ranges in wind-generated waves with applications to scatterometry.J. Geophys. Res. (1987)92, 4971–5029.CrossRefGoogle Scholar
  5. 5.
    Garrat, G.R. The internal boundary layer. Review.Boundary-Layer Meteorol. (1990)50, 171–203.CrossRefGoogle Scholar
  6. 6.
    Garrat, G.R. The stably-stratified internal boundary layer for steady and diurnal-varying offshore flow.Boundary-Layer Meteorol. (1987)38, 369–394.CrossRefGoogle Scholar
  7. 7.
    Venkatram, A. A model of internal boundary layer development.Boundary-Layer Meteorol. (1977)11, 419–438.CrossRefGoogle Scholar
  8. 8.
    Jury, M.R. A thermal front within the marine atmospheric boundary layer over the Agulhas current south of Africa: composite aircraft observation.J. Geophys. Res. (1993)99, 3297–3304.CrossRefGoogle Scholar
  9. 9.
    Zilitinkevich, S.S.Dynamics of the Atmospheric Boundary Layer. Leningrad: GMI (1979).Google Scholar
  10. 10.
    Rossby, C.G. and Montgomery, R. The layers of frictional influence in wind and ocean currents.MIT Meteorol. (1935)3, 3–101.Google Scholar
  11. 11.
    Brown, R.A. On two-layer models and the similarity function for PBL.Boundary-Layer Meteorol. (1982)24, 451–464.CrossRefGoogle Scholar
  12. 12.
    Bergstorm, H.A. Simplified boundary layer wind model for practical applications.J. Clim. Appl. Meteorol. (1985)25, 813–824.CrossRefGoogle Scholar
  13. 13.
    Zilitinkevich, S.S. Velocity profiles and the resistance law in the planetary boundary layer, with stratification being neutral and stable.Izv. Akad. Nauk SSSR, Fiz. Atmos. Okeana (1989)25, 131–143.Google Scholar
  14. 14.
    Zilitinkevich, S.S. Temperature profile and the law for heat transfer in the PBL, with stratification being neutral and stable.Izv. Akad. Nauk SSSR, Fiz. Atmos. Okeana (1990)26, 313–314.Google Scholar
  15. 15.
    Grodsky, S.A. and Kudryavtsev, V.N. About transformation of the atmospheric near-surface boundary layer in the temperature front area.Sov. J. Phys. Oceanogr. (1993)4, 263–273.CrossRefGoogle Scholar
  16. 16.
    Reynor, G.S., Sethuramans, S. and Brown, R.M. Formation and characteristics of coastal internal boundary layer during onshore flows.Boundary-Layer Meteorol. (1977)16, 487–514.CrossRefGoogle Scholar
  17. 17.
    Mulhearn, L.J. On the formation of a stably-stratified internal boundary layer by advection of warm air over a cooler sea.Boundary-Layer Meteorol. (1981)21, 247–254.CrossRefGoogle Scholar
  18. 18.
    Zilitinkevich, S.S., Fedorovich, E.E. and Shabanova, M.V. Calculation of the diurnal cycle of the atmospheric planetary boundary layer.Izv. Akad. Nauk SSSR, Fiz. Atmos. Okeana (1991)27, 339–352.Google Scholar
  19. 19.
    Landau, L.D.Hydrodynamics. Moscow: FML (1986).Google Scholar
  20. 20.
    Panofsky, H. and Dutton, J.Atmospheric Turbulence, San Diego, CA: Academic Press (1984).Google Scholar
  21. 21.
    Tennekes, H. A model for the dynamics of the inversion above a convective boundary layer.J. Atmos. Sci. (1973)30, 308–567.CrossRefGoogle Scholar

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© VSP 1996

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  • V. N. Kudryavtsev

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