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

Sridharan, S.; Gurubaran, S.; Rajaram, R.

dc.contributor.author	Sridharan, S.
dc.contributor.author	Gurubaran, S.
dc.contributor.author	Rajaram, R.
dc.date.accessioned	2015-06-24T06:57:16Z
dc.date.accessioned	2021-02-12T10:52:05Z
dc.date.available	2015-06-24T06:57:16Z
dc.date.available	2021-02-12T10:52:05Z
dc.date.issued	2002
dc.identifier.citation	JASTP, v.64/8-11, p.1241-1250, 2002, doi:10.1016/S1364-6826(02)00072-X	en_US
dc.identifier.uri	http://localhost:8080/xmlui/handle/123456789/172
dc.description.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.	en_US
dc.language.iso	en	en_US
dc.subject	MF radar	en_US
dc.subject	Kelvin waves	en_US
dc.subject	Semi-annual oscillation	en_US
dc.subject	Eastward acceleration	en_US
dc.subject	Vertical momentum flux	en_US
dc.subject	Body force per unit mass	en_US
dc.title	Radar observations of the 3.5-day ultra-fast Kelvin wave in the low-latitude mesopause region	en_US
dc.type	Article	en_US
dc.identifier.accession	090691