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Please use this identifier to cite or link to this item: http://hdl.handle.net/2014/40986

Title: Intraseasonal variations of the tropical total ozone and their connection to the Madden-Julian Oscillation
Authors: Tian, B.
Yung, Y. L.
Waliser, D. E.
Tyranowski, T.
Kuai, L.
Fetzer, E. J.
Irion, F. W.
Keywords: large-scale oscillations
atmospheric composition
Atmospheric Infrared Sounder (AIRS)
ozone
Issue Date: 21-Apr-2007
Publisher: American Geophysical Union.
Citation: Geophysical Research Letters, Vol. 34, L08704, 2007, doi:10.1029/2007GL029451
Abstract: We investigate the intraseasonal (30–90 day) variations in satellite-observed tropical total ozone (O3) and their connection to the Madden-Julian Oscillation (MJO). Tropical total O3 intraseasonal variations are large (~±10 DU) and comparable to those in annual and interannual time scales. These O3 anomalies are mainly evident in the subtropics over the Pacific and eastern; hemisphere and propagate slowly eastward (~5 m s-1). The subtropical negative (positive) O3 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 O3 are anticorrelated with geopotential height anomalies near the tropopause and thus mainly associated with the O3 variability in the stratosphere rather the troposphere. Over the equatorial regions, total O3 anomalies are small.
URI: http://hdl.handle.net/2014/40986
Appears in Collections:JPL TRS 1992+

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