Radar observations of the 3.5-day ultra-fast Kelvin wave in the low-latitude mesopause region

Please use this identifier to cite or link to this item: http://library.iigm.res.in:8080/xmlui/handle/123456789/172

Title:	Radar observations of the 3.5-day ultra-fast Kelvin wave in the low-latitude mesopause region
Authors:	Sridharan, S. Gurubaran, S. Rajaram, R.
Keywords:	MF radar Kelvin waves Semi-annual oscillation Eastward acceleration Vertical momentum flux Body force per unit mass
Issue Date:	2002
Citation:	JASTP, v.64/8-11, p.1241-1250, 2002, doi:10.1016/S1364-6826(02)00072-X
Abstract:	The medium frequency (MF) radar observations of the 3.5-day ultra-fast Kelvin (UFK) wave in the mesopause region (84–) over Tirunelveli (), India for a period of nearly 3 years are reported in the present work. The UFK wave reveals semi-annual variability at heights () where the mesopause semi-annual oscillation (MSAO) in the mean wind peaks. Large-amplitude wave events preferentially occur during the westward flow regimes of the background wind. Mean eastward winds and their shears are qualitatively shown to be associated with bursts of waves with moderate amplitudes. Vertical wavelength estimates agree with earlier estimates based on satellite temperature retrievals for a wavenumber 1 ultra-fast Kelvin wave.
URI:	http://localhost:8080/xmlui/handle/123456789/172
Appears in Collections:	SEG_Reprints

Files in This Item:

File	Description	Size	Format
SridharanS_GurubaranS_RajaramR_JASTP_2002_1241-1450.pdf Restricted Access	Reprint	572.23 kB	Adobe PDF	View/Open Request a copy