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CN 11-2282/P
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Archive > Volume 35 Issue 9 > 2009,35(9):77-83. DOI:10.7519/j.issn.1000-0526.2009.9.010 Prev Next

A Numerical Study of the Effect of Terrain on  Kunming QuasiStationary Front (KQSF)

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    Abstract:
    The numerical simulation using the NCEP/NCAR 1°×1° global reanalysis in January 2008 and the MM5 mesoscale model is performed to investigate the stru cture and characteristics of Kunming quasistationary front (KQSF) during the extrem e low temperature and frozen snow events over southern China. The results indi cate th at the formation and its maintenance of KQSF are the consequence of the obstruct i on due to plateau terrain and special synoptic system configuration under the i nflu ence of the longtime, repeating cold airs over southern China. It is foun d t hat the obstruction of plateau terrain is necessary for the formation and the ma intenance of KQSF by the sensitivity numerical experiments of halving terrain.

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