Temporal variance of lower mesospheric ozone over Switzerland during winter 2000/2001
Earth and related Environmental sciences
Time series analysis
Lower mesospheric ozone
Ozone volume mixing ratio
Stratospheric ozone monitoring radiometer
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The Stratospheric Ozone Monitoring Radiometer (SOMORA) is continuously operated in Switzerland and measures ozone volume mixing ratio qo3 in the stratosphere and lower mesosphere with a time resolution of about 30 min. Temporal variances S (wave period band 1-3 h) of daytime and nighttime ozone are studied at an altitude of 55 km from October 1, 2000 to May 1, 2001. Gravity waves are assumed as cause of the observed short-time fluctuations of qo3. Strong negative and positive correlations are found between the dynamic state of the stratosphere (represented by time series of ERA-40 reanalyses) and SOMORA's S and qo3 series of lower mesospheric ozone. Oscillations with periods of 5-30 days are present in the S and qo3 series.
CitationHocke, K.; Kämpfer, N.; Feist, D.G.; Calisesi, Y.; Jiang, J.H.; Chabrillat, S. (2006). Temporal variance of lower mesospheric ozone over Switzerland during winter 2000/2001. , Geophysical Research Letters, Vol. 33, Issue 9, L09801, DOI: 10.1029/2005GL025496.