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Proceedings Paper

A comparative study of air-sea exchange coefficients and turbulent fluxes over Indian Subcontinent and Korean Peninsula
Author(s): D. Bala Subrahamanyam; Radhika Ramachandran; S. Indira Rani; P. K. Kunhikrishnan; B. Prasad Kumar
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Paper Abstract

In this article, we describe the variation of air-sea exchange coefficients and air-sea interface fluxes over the East Asian marginal seas surrounding the Korean peninsula and compare them with the similar estimates reported for the tropical Indian Ocean. Surface layer meteorological observations for a period of about five years obtained from five oceanic buoys in the adjoining seas of Korean peninsula form the database for this study. Depending on the stability of the atmosphere, buoy data is classified into three categories - unstable, neutral and stable data. For unstable conditions, sensible and latent heat flux show good correlation with the wind speed, whereas it is not so for the neutral and stable condition. Irrespective of the stability of the atmosphere, momentum flux always shows a steady dependence on the varying wind speed. Sensible and latent heat fluxes also show good correlation with the difference between sea surface temperature and air temperature. Unlike the linear regression between the exchange coefficients and wind speeds reported for the Indian Ocean, we suggest second order and exponential fits for these exchange coefficients, which give better representation of their wind speed dependence. The results presented in this article form very useful input to the coupled ocean atmospheric models and the oceanic wave models, hence significant.

Paper Details

Date Published: 8 December 2006
PDF: 12 pages
Proc. SPIE 6404, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions, 640416 (8 December 2006); doi: 10.1117/12.694109
Show Author Affiliations
D. Bala Subrahamanyam, Vikram Sarabhai Space Ctr. (India)
Radhika Ramachandran, DOS (India)
S. Indira Rani, Vikram Sarabhai Space Ctr. (India)
P. K. Kunhikrishnan, Vikram Sarabhai Space Ctr. (India)
B. Prasad Kumar, DOENA, CORAL, Indian Institute of Technology (India)

Published in SPIE Proceedings Vol. 6404:
Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions
Tiruvalam N. Krishnamurti; B. N. Goswami; Toshiki Iwasaki, Editor(s)

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