Tian, B. and Yung, Y. L. and Waliser, D. E. and Tyranowski, T. and Kuai, L. and Fetzer, E. J. and Irion, F. W. (2007) Intraseasonal variations of the tropical total ozone and their connection to the Madden-Julian Oscillation. Geophysical Research Letters, 34 (8). Art. No. L08704. ISSN 0094-8276. doi:10.1029/2007GL029451. https://resolver.caltech.edu/CaltechAUTHORS:20140826-085126532
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Abstract
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 (∼±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 (∼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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Additional Information: | © 2007 The American Geophysical Union. Received 23 January 2007; Revised 23 February 2007; Accepted 16 March 2007; Published 21 April 2007. This research was carried out at the JPL, Caltech, under a contract with NASA. It was jointly supported by the Research and Technology Development program, Human Resources Development fund, and the AIRS project at JPL. YLY and LK were supported by NASA grant NNG04GD76G to Caltech and TT acknowledged support by the Caltech SURF program in 2006. We thank S. Frith for sending us the daily TOMS/SBUV MOD data, R. Stolarski and X. Jiang for discussions and G. Kiladis for comments. The AIRS O3, CMAP rainfall, and NCEP reanalysis data are provided by NASA/GSFC/DAAC, NOAA/CPC, and NOAA/OAR/ESRL PSD from their web sites. | ||||||||||||
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Issue or Number: | 8 | ||||||||||||
DOI: | 10.1029/2007GL029451 | ||||||||||||
Record Number: | CaltechAUTHORS:20140826-085126532 | ||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140826-085126532 | ||||||||||||
Official Citation: | Tian, B., Yung, Y. L., Waliser, D. E., Tyranowski, T., Kuai, L., Fetzer, E. J., & Irion, F. W. (2007). Intraseasonal variations of the tropical total ozone and their connection to the Madden-Julian Oscillation. Geophysical Research Letters, 34(8), L08704. doi: 10.1029/2007gl029451 | ||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
ID Code: | 48892 | ||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||
Deposited By: | Joanne McCole | ||||||||||||
Deposited On: | 26 Aug 2014 16:56 | ||||||||||||
Last Modified: | 10 Nov 2021 18:37 |
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