SODAR observations of inertia- gravity waves in the atmospheric boundary layer during the passage of tropical cyclone

Kumar, Niranjan K and Rao, Kanaka Ch and Sandeep, A and Rao, TN (2014) SODAR observations of inertia- gravity waves in the atmospheric boundary layer during the passage of tropical cyclone. In: ATMOSPHERIC SCIENCE LETTERS, 15 (2). pp. 120-126.

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Abstract

This study reports characteristics of inertia-gravity waves (IGWs) in the atmospheric boundary layer during the passage of Tropical Cylone-03B, using the Doppler Sound Detection and Ranging (SODAR) observations at the Indian tropical station of Gadanki (13.45 degrees N, 79.2 degrees E; near the east coast of India). Wavelet analysis of horizontal winds indicates significant wave motion (60h) near the characteristic inertial period. The hodograph analysis of the filtered winds shows an anti-cyclonic turning of horizontal wind with height and time, indicating the presence of IGW. This study finds important implications in boundary layer dynamics during the passage of tropical cyclones.

Item Type:	Journal Article
Publication:	ATMOSPHERIC SCIENCE LETTERS
Publisher:	WILEY-BLACKWELL
Additional Information:	copyright for this article belongs to WILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Keywords:	SODAR; inertia-gravity waves; tropical cyclones
Department/Centre:	Division of Mechanical Sciences > Divecha Centre for Climate Change
Date Deposited:	09 Jun 2014 09:44
Last Modified:	09 Jun 2014 11:43
URI:	http://eprints.iisc.ac.in/id/eprint/49228

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