Jet-Stream Structure and Clear-Air Turbulence (CAT)

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  • 1 Colorado State University
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Abstract

Cloud-photogrammetric studies conducted from the ground reveal the existence of wave perturbations near tropopause level, of a wavelength the same order of magnitude as is experienced in clear-air turbulence. A case study of the CAT occurrence on 13 April 1962 reveals the importance of the confluence mechanism of two jet streams, and the turning of wind with height in CAT generation.

Abstract

Cloud-photogrammetric studies conducted from the ground reveal the existence of wave perturbations near tropopause level, of a wavelength the same order of magnitude as is experienced in clear-air turbulence. A case study of the CAT occurrence on 13 April 1962 reveals the importance of the confluence mechanism of two jet streams, and the turning of wind with height in CAT generation.

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