气候变化领域集成服务门户(CCPortal): On the reset of the wind-forced decadal kuroshio extension variability in late 2017

CCPortal

DOI	10.1175/JCLI-D-20-0237.1
	On the reset of the wind-forced decadal kuroshio extension variability in late 2017
	Qiu B.; Chen S.; Schneider N.; Oka E.; Sugimoto S.
发表日期	2021
ISSN	0894-8755
起始页码	10813
结束页码	10828
卷号	33 期号:24
英文摘要	Decadal modulations of the Kuroshio Extension (KE) system between a stable and an unstable dynamic state in the western North Pacific have prevailed in the past three decades. This dominance of decadal variations is controlled by the negative feedback loop involving the wind-forced KE variability and its feedback onto the overlying extratropical storm tracks and the basin-scale surface wind field. The wind-forced decadal KE modulations were disrupted in August 2017 due to the development of the Kuroshio large meander south of Japan. By forcing the inflow KE paths northward and by avoiding overriding the shallow Izu Ridge, the Kuroshio large meander was able to compel the KE to change rapidly from the wind-forced, pre-existing, unstable state to a stable state. Following the large meander occurrence in late 2017, the stabilized KE change is found to affect the overlying storm tracks and the basin-scale wind field the same way as those generated by the wind-forced KE change prior to 2017. Given the consistent atmospheric response to both the large-meander-induced and wind-forced KE variability, we expect that the KE dynamic state will resume its decadal modulation after the phase reset relating to the 2017 large meander event. © 2020 American Meteorological Society. All rights reserved.
英文关键词	Modulation; Ocean currents; Storms; Atmospheric response; Decadal variations; Extratropical storms; Kuroshio Extension; Negative feedback loop; Surface wind fields; Unstable dynamics; Western North Pacific; Feedback; atmosphere-ocean system; atmospheric dynamics; boundary current; climate modeling; decadal variation; mesoscale meteorology; prediction; wind velocity; Kuroshio Extension; Pacific Ocean
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170914
作者单位	Department of Oceanography, University of Hawai'i at Manoa, Honolulu, HI, United States; Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Japan; Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, Japan
推荐引用方式 GB/T 7714	Qiu B.,Chen S.,Schneider N.,et al. On the reset of the wind-forced decadal kuroshio extension variability in late 2017[J],2021,33(24).
APA	Qiu B.,Chen S.,Schneider N.,Oka E.,&Sugimoto S..(2021).On the reset of the wind-forced decadal kuroshio extension variability in late 2017.Journal of Climate,33(24).
MLA	Qiu B.,et al."On the reset of the wind-forced decadal kuroshio extension variability in late 2017".Journal of Climate 33.24(2021).