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The tropical‐subtropical semi‐annual oscillation in the upper troposphere
Author(s) -
Shea Dennis J.,
Van Loon Harry,
Hurrell James W.
Publication year - 1995
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.3370150904
Subject(s) - radiosonde , climatology , troposphere , subtropics , environmental science , southern hemisphere , madden–julian oscillation , northern hemisphere , range (aeronautics) , subtropical ridge , atmospheric sciences , meteorology , geography , geology , convection , precipitation , materials science , fishery , composite material , biology
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.