Studies of atmospheric internal gravity waves at Halley station, Antarctica, using radiosondes

Mobbs, S.D.; Rees, J.M.. 1989 Studies of atmospheric internal gravity waves at Halley station, Antarctica, using radiosondes. Antarctic Science, 1 (01). 65-75. 10.1017/S0954102089000118

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Official URL: http://dx.doi.org/10.1017/S0954102089000118

Abstract/Summary

Analysis of high-resolution data from slow-ascent radiosondes released at Halley station, Antarctica (75°38′S, 26°40′W), shows that internal gravity wave phenomena are frequently present in the lower troposphere. There is a strong tendency for these waves to induce a vertical transport of the SE-NW component of momentum, this being the component perpendicular to the alignment of regular ridges in the ice shelf on which the base is built and is independent of the mean wind direction. A method for estimating the variation of the momentum fluxes with height is described. Results show that momentum flux divergences equivalent to accelerations of about 10 ms−1 per day are common at Halley.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1017/S0954102089000118
ISSN:	0954-1020
Additional Keywords:	boundary layer, Halley station, internal gravity waves, radiosondes
Date made live:	17 Oct 2018 09:51 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/521255

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1017/S0954102089000118

ISSN:

0954-1020

Additional Keywords:

boundary layer, Halley station, internal gravity waves, radiosondes

Date made live:

17 Oct 2018 09:51 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/521255