SOLA
Online ISSN : 1349-6476
Possible Impact of a Tropical Cyclone on the Northward Migration of the Baiu Frontal Zone
Tsuyoshi YamauraYoshiyuki KajikawaHirofumi TomitaMasaki Satoh
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2013 Volume 9 Pages 89-93

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Abstract

The impact of a tropical cyclone on the northward migration of the Baiu frontal zone (BFZ) is investigated in the case of the tropical cyclone MAWAR (2012) using a global cloud-system resolving model, called NICAM. From 4 to 6 June in 2012, the BFZ rapidly shifts northward with MAWAR. A simulation with the initial data of 29 May reproduces the northward migration of the BFZ and the tropical cyclone. Strong southerlies on the eastern side of the tropical cyclone transport moist and high-temperature air into the BFZ. This horizontal advection affects the northward migration of the BFZ. In contrast, the BFZ stagnates to the south of Japan in another simulation with the initial data of 30 May because the tropical cyclone track is diverted eastward. Thus, realistic reproducibility of a tropical cyclone is needed for better simulations and prediction of the BFZ migration.

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© 2013 by the Meteorological Society of Japan
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