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The tropical-subtropical semi-annual oscillation in the upper troposphere

✍ Scribed by Dennis J. Shea; Harry Van Loon; James W. Hurrell

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
837 KB
Volume
15
Category
Article
ISSN
0899-8418

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✦ Synopsis

Abstract

The tropical‐subtropical semi‐annual oscillation (TSSAO) of the zonal wind and temperature in the upper troposphere has been described by van Loon and Jenne. Their description was based on analysis of 20 Southern Hemisphere (SH) radiosonde stations and on two SH climatological atlases. This note documents further the TSSAO's climatology and its' spatial and temporal variability. This is accomplished by (i) using more radiosonde stations, in which data records span longer time periods, and (ii) using analyses from the European Centre for Medium Range Weather Forecasts for a spatially coherent picture.

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