Skip to main content
Log in

Marine boundary layer characteristics during a cyclonic storm over the Bay of Bengal

  • Published:
Journal of Earth System Science Aims and scope Submit manuscript

Abstract

During the period 12–16 June 1996 a tropical cyclonic storm formed over the southwest Bay of Bengal and moved in a north-northeasterly direction. The thermodynamic characteristics of this system are investigated by utilizing the surface and upper air observations collected onboardORV Sagar Kanya over the Bay of Bengal region. The response of the cyclonic storm is clearly evident from the ship observations when the ship was within the distance of 600–800 km from the cyclonic storm. This study explores why (i) the whole atmosphere from surface to 500 hPa had become warm and moist during the cyclonic storm period as compared to before and after the formation of this system and (ii) the lower layer of the atmosphere had become stable during the formative stage of the cyclonic storm.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Betts A K 1982 Saturation point analysis of moist convective overturning;J. Atmos. Sci. 39 1484–1504.

    Article  Google Scholar 

  • Betts A K and Albrecht B A 1987 Conserved variable analysis of the convective boundary layer thermodynamic structure over the tropical ocean;J. Atmos. Sci. 44 83–99.

    Article  Google Scholar 

  • Betts A K and Ridgway W 1989 Climatic equilibrium of the atmospheric convective boundary layer over a tropical ocean;J. Atmos. Sci. 46 2621–2641.

    Article  Google Scholar 

  • Bolton D 1980 The computation of equivalent potential temperature;Mon. Wea. Rev. 108 1046–1053.

    Article  Google Scholar 

  • DeMaria M and Pickle J D 1988 A simplified system of equations for simulation of tropical cyclones;J. Atmos. Sci. 45 1542–1554.

    Article  Google Scholar 

  • Desai D S and Waikar B D 1997 Recurving cyclonic storm during 1970-94;Mausam 48 421–428.

    Google Scholar 

  • Frank W A 1977 The structure and energetics of the tropical cyclones I: Storm Structure;Mon. Wea. Rev. 105 1119–1135.

    Article  Google Scholar 

  • Holt M W and Hunt J C R 1997 Prediction of sea state under tropical cyclones in the UK Met Office operational global wave model;Mausam 48 621–628.

    Google Scholar 

  • Holt T and Raman S 1986 Observations of the mean and turbulence structure of the marine boundary layer over the Bay of Bengal during MONEX-79;Mon. Wea. Rev. 114 2176–2190.

    Article  Google Scholar 

  • Kingsmill D E and R A Houze Jr 1999 Thermodynamic characteristics of air flowing into and out precipitating convection over the West Pacific warm pool;Quart. J. Roy. Meteor. Soc. 125 1209–1229.

    Article  Google Scholar 

  • Kloesel K A and Albrecht B A 1989 Low level inversions over the tropical Pacific-thermodynamic structure of the boundary layer and the above-inversion moisture structure;Mon. Wea. Rev. 117 89–101.

    Article  Google Scholar 

  • Morwal S B 1998 Nature and some evolutionary aspects of the monsoon boundary layer; Ph.D. Thesis, University of Pune, Pune.

    Google Scholar 

  • Rao R R 1987 Further analysis on the thermal response of the upper Bay of Bengal to the forcing of pre-monsoon cyclonic storm and summer monsoonal onset during MONEX-79;Mausam 38 147–156.

    Google Scholar 

  • Rao R R, Mathew B and Hareeshkumar P V 1993 A summary of results on thermohaline variability in the upper layers of the East Central Arabian Sea and Bay of Bengal during summer monsoon experiments;Deep-Sea Res. 40 1647–1672.

    Article  Google Scholar 

  • Seetaramayya P, Parasnis S S, Nagar S G and Vernekar K G 1993 Thermodynamic structure of the boundary layer in relation to monsoon depression over the Bay of Bengal — A case study;Bound.-Layer Meteorol. 65 307–314.

    Article  Google Scholar 

  • Sikka D R 1977 Some aspects of the life history, structure and movement of monsoon depression;Pure Appl. Geophys. 115 1501–1529.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Morwal, S.B., Nagar, S.G., Murty, V.S.N. et al. Marine boundary layer characteristics during a cyclonic storm over the Bay of Bengal. J Earth Syst Sci 115, 587–599 (2006). https://doi.org/10.1007/BF02702911

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02702911

Keywords

Navigation