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Meteorology and Atmospheric Physics

, Volume 115, Issue 3–4, pp 113–121 | Cite as

Vertical structure of sea-breeze circulation over Thumba (8.5°N, 76.9°E, India) in the winter months and a case study during W-ICARB field experiment

  • T. J. Anurose
  • D. Bala SubrahamanyamEmail author
  • C. B. S. Dutt
  • N. V. P. Kiran Kumar
  • Sherine Rachel John
  • Sandhya K. Nair
  • M. Santosh
  • Mannil Mohan
  • P. K. Kunhikrishnan
  • S. Sijikumar
  • S. S. Prijith
Original Paper

Abstract

This research article aims at characterization of the sea-breeze circulation over Thumba (8.5°N, 76.9°E, India) in the winter season from December 2008 to February 2009, when this mesoscale circulation over the study domain was prominent. The characteristics of sea-breeze circulation cell comprising sea-breeze and compensatory return flow are investigated for clear-sky and cloudy days. The study indicated delayed onset of sea-breeze on the cloudy days as compared to the clear-sky days and the vertical thickness of sea-breeze circulation cell was found to be larger for the clear-sky days. Vertical thickness of the return flow for both clear-sky and cloudy days was larger than that of the sea-breeze flow. Simultaneous observations of upper-air meteorological parameters obtained through balloon-borne GPS sonde ascents carried out from Thumba and its adjoining coastal ocean on 29 January 2009 as part of the Winter phase of Integrated Campaign for Aerosols, gases and Radiation Budget (W-ICARB) are utilized for a case study towards investigation of diurnal evolution of the sea-breeze circulation cell. Results obtained from this study indicated systematic evolution of sea-breeze circulation over Thumba, however, it was not very clear over ocean which is attributed to cloudy conditions that prevailed on the day of measurement.

Keywords

Local Time Return Flow Cloudy Condition Vertical Thickness Thermal Internal Boundary Layer 
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.

Notes

Acknowledgements

We greatly acknowledge the support and inspiring guidance rendered by Dr. K. Krishna Moorthy, Director, SPL. We are also very much grateful to Dr. S. Satyanarayana, Former Group Director, RF Advanced Technology and Facilities Division, VSSC and his colleagues for their technical support during installation of Pisharoty Sonde Receiver onboard ORV-SK. Authors also thank Mr. J. Subbarao and P. R. Sinha, TIFR-BF, Hyderabad for their support during the balloon-borne Pisharoty Sonde launches onboard ORV-SK. We wish to thank Dr. K. V. S. Namboodiri, MET-Facility, VSSC and his colleagues for their support at Thumba ground station. The W-ICARB field experiment was conducted under ISRO’ s Geosphere-Biosphere Program (ABLNC and ICARB Projects) and is duly acknowledged. Ms. TJA, SRJ and Mr. SSP acknowledge Indian Space Research Organization for their research fellowship.

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • T. J. Anurose
    • 1
  • D. Bala Subrahamanyam
    • 1
    Email author
  • C. B. S. Dutt
    • 2
  • N. V. P. Kiran Kumar
    • 1
  • Sherine Rachel John
    • 1
  • Sandhya K. Nair
    • 1
  • M. Santosh
    • 1
  • Mannil Mohan
    • 1
  • P. K. Kunhikrishnan
    • 1
  • S. Sijikumar
    • 1
  • S. S. Prijith
    • 1
  1. 1.Space Physics Laboratory, Vikram Sarabhai Space Centre Department of Space, Govt. of India, Indian Space Research OrganizationThiruvananthapuramIndia
  2. 2.National Remote Sensing CentreDepartment of Space, Govt. of India, Indian Space Research OrganizationHyderabadIndia

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