Atmospheric sounding over the winter Kuroshio Extension: Effect of surface stability on atmospheric boundary layer structure

Tokinaga, Hiroki; Tanimoto, Youichi; Nonaka, Masami; Taguchi, Bunmei; Fukamachi, Tomohiro; Xie, Shang-Ping; Nakamura, Hisashi; Watanabe, Tomowo; Yasuda, Ichiro

Atmospheric sounding over the winter Kuroshio Extension: Effect of surface stability on atmospheric boundary layer structure

Tokinaga, Hiroki; Tanimoto, Youichi; Nonaka, Masami et al.

Geophysical Research Letters, 2006, 33(4), L04703

Permalink : https://hdl.handle.net/2115/14460

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アクセス権	open access
URI	https://hdl.handle.net/2115/14460
タイトル	Atmospheric sounding over the winter Kuroshio Extension: Effect of surface stability on atmospheric boundary layer structure
著者	Tokinaga, Hiroki ; Tanimoto, Youichi ; Nonaka, Masami ; Taguchi, Bunmei ; Fukamachi, Tomohiro ; Xie, Shang-Ping ; Nakamura, Hisashi ; Watanabe, Tomowo ; Yasuda, Ichiro
著者名 Tokinaga, Hiroki
e-Rad_Researcher 00291568 著者名 Tanimoto, Youichi 谷本, 陽一
著者名 Nonaka, Masami
著者名 Taguchi, Bunmei
著者名 Fukamachi, Tomohiro
著者名 Xie, Shang-Ping
e-Rad_Researcher 10251406 著者名 Nakamura, Hisashi
著者名 Watanabe, Tomowo
e-Rad_Researcher 80270792 著者名 Yasuda, Ichiro
言語	英語
キーワード	Atmospheric Processes
	Boundary layer processes
	Ocean/atmosphere interactions
	Oceanography
	Marine meteorology
発行日	2006-02-17
出版者	American Geophysical Union
収録物名	Geophysical Research Letters
巻(号)	33(4)
ページ	L04703
抄録	Shipboard radiosonde surveys were conducted during the 2003-04 winter east of Japan to study atmospheric boundary layer (ABL) structure over the Kuroshio Extension. ABL displayed large variations in vertical structure, most of which are attributable to changes in atmospheric surface stability. Where the surface atmosphere was unstable (neutral) as measured by the sea-air temperature difference, surface turbulent heat flux increased (decreased) and a mixed-layer developed (undeveloped) with weakened (intensified) vertical wind shear. A linear regression analysis indicates that ABL height tends to increase by 1km as the sea-air temperature difference increases by 7°C or surface turbulent heat flux by 500 Wm−2. While meridional thermal advection by weather disturbances seems to cause much of atmospheric stability variability during the 43-day surveys, the strong sensitivity of vertical mixing and wind shear to stability is consistent with the observed in-phase co-variability of SST and surface wind from satellite on monthly and longer timescales.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	An edited version of this paper was published by AGU. Copyright 2006 American Geophysical Union.
PISSN	0094-8276
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1029/2005GL025102, 2006