GCM Bias of the Western Pacific Summer Monsoon and Its Correction by Two-Way Nesting System

INATSU, Masaru; SATAKE, Yuya; KIMOTO, Masahide et al.

Journal of the Meteorological Society of Japan, 2012, 90B(0), 1-10

Permalink : https://hdl.handle.net/2115/52670

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アクセス権	open access
URI	https://hdl.handle.net/2115/52670
タイトル	GCM Bias of the Western Pacific Summer Monsoon and Its Correction by Two-Way Nesting System
著者	INATSU, Masaru ; SATAKE, Yuya ; KIMOTO, Masahide ; YASUTOMI, Natsuko
著者名 INATSU, Masaru
著者名 SATAKE, Yuya
著者名 KIMOTO, Masahide
著者名 YASUTOMI, Natsuko
言語	英語
発行日	2012
出版者	Meteorological Society of Japan
収録物名	Journal of the Meteorological Society of Japan
巻(号)	90B(0)
ページ	1-10
抄録	Accurate simulation of summertime convection associated with the Asian monsoon trough over the subtropical western Pacific is important but di‰cult to achieve in many general circulation models (GCMs). This study reports a case in which bias could be reduced by introducing a higher-resolution regional atmospheric model (RAM), two-way nested in an atmospheric GCM over the western Pacific. Additional partial-coupling experiments revealed that GCM bias correction was insensitive to the coupling domain. The two-way nesting e¤ect was similar to one phase of a leading mode of natural variability in the system. This is indicative that the twoway nesting model provides more realistic tropical heating that e¤ectively excites a correct phase of the intrinsic dynamical mode to reduce GCM bias.
資源タイプ	学術雑誌論文
出版タイプ	Enhanced Version of Record
PISSN	0026-1165
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2151/jmsj.2012-B01