Articles | Volume 15, issue 17
https://doi.org/10.5194/acp-15-10019-2015
https://doi.org/10.5194/acp-15-10019-2015
Research article
 | 
08 Sep 2015
Research article |  | 08 Sep 2015

Ensemble data assimilation of total column ozone using a coupled meteorology–chemistry model and its impact on the structure of Typhoon Nabi (2005)

S. Lim, S. K. Park, and M. Zupanski

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Short summary
In this study, the impact of O3 observations on the tropical cyclone (TC) structure is examined using the WRF-Chem with an ensemble-based data assimilation (DA) system. For a TC case that occurred over East Asia, the ensemble forecast is reasonable and the O3 assimilation affects both chemical and atmospheric variables near the TC area. All measures indicate a positive impact of DA on the analysis – the cost function and root mean square error have decreased by 16.9% and 8.87%, respectively.
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