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The effect of the passage of cold fronts on the vertical distribution of ozone at the CHMI observatory at Prague‐Libuš
Author(s) -
Halenka T.,
LašTovička J.,
Radicella S.
Publication year - 1994
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49712051915
Subject(s) - ozone , tropopause , stratosphere , atmospheric sciences , environmental science , observatory , cold front , advection , climatology , ozone layer , hydrometeorology , potential temperature , synoptic scale meteorology , meteorology , geology , geography , precipitation , physics , astrophysics , thermodynamics
The response of the total ozone content to meteorological phenomena of a synoptic scale has been studied for many years and is relatively well known now. Much less is known about the response of the ozone profile to such meteorological phenomena. In this paper the response of the shape of the ozone profile to the passage of intense cold fronts and to strong advection from a significantly northern direction is investigated using the results of ozone soundings carried out by the observatory of the Czech Hydrometeorological Institute (CHMI) in Prague‐Libuš during the period January to April for the years 1981 to 1990. Some data from Uccle (Belgium) have also been used. The synoptic patterns studied here were those that were followed by the occurrence of secondary peaks in ozone profiles between the tropopause height (often significantly decreased during such events) and the usual height of the main ozone maximum. Such secondary peaks can be sometimes even larger than the usual ozone maximum. The observed changes in ozone profiles could be explained by the transport of air of polar origin having a greater ozone content in the lower stratosphere behind the upper‐level frontal zone.