Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 34, Issue 8, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2007GL029451
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[1] We investigate the intraseasonal (30-90 day) variations in satellite-observed tropical total ozone (O-3) and their connection to the Madden-Julian Oscillation (MJO). Tropical total O-3 intraseasonal variations are large (similar to+/-10 DU) and comparable to those in annual and interannual time scales. These O-3 anomalies are mainly evident in the subtropics over the Pacific and eastern; hemisphere and propagate slowly eastward (similar to 5 m s(-1)). The subtropical negative (positive) O-3 anomalies are typically collocated with the subtropical upper troposphere anticyclones (cyclones) generated by equatorial MJO convection and flank or lie to the west of the equatorial enhanced (suppressed) MJO convection. The subtropical O-3 are anti-correlated with geopotential height anomalies near the tropopause and thus mainly associated with the O-3 variability in the stratosphere rather the troposphere. Over the equatorial regions, total O-3 anomalies are small.
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