Multidecadal Changes of the Upper Indian Ocean Heat Content during 1965-2016

doi:10.1175/JCLI-D-18-0116.1

IOCAS-IR > 海洋环流与波动重点实验室

	Multidecadal Changes of the Upper Indian Ocean Heat Content during 1965-2016
	Li, Yuanlong 1,2,3; Han, Weiqing 2; Hu, Aixue 4; Meehl, Gerald A.4; Wang, Fan1,5,6
	2018-10-01
发表期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
卷号	31 期号:19 页码:7863-7884
通讯作者	Li, Yuanlong(liyuanlong@qdio.ac.cn)
摘要	Ocean heat uptake is the primary heat sink of the globe and modulates its surface warming rate. In situ observations during the past half century documented obvious multidecadal variations in the upper-ocean heat content (0-400 m; OHC400) of the Indian Ocean (IO). The observed OHC400 showed an increase of (5.9 +/- 2.5) x 10(21) J decade(-1) during 1965-79, followed by a decrease of (-5.2 +/- 2.5) x 10(21) J decade(-1) during 1980-96, and a rapid increase of (13.6 +/- 1.1) x 10(21) J decade(-1) during 2000-14. These variations are faithfully reproduced by an Indo-Pacific simulation of an ocean general circulation model (OGCM), and insights into the underlying mechanisms are gained through OGCM experiments. The Pacific wind forcing through the Indonesian Throughflow (ITF) was the leading driver of the basin-integrated OHC400 increase during 1965-79 and the decrease during 1980-96, whereas after 2000 local wind and heat flux forcing within the IO made a larger contribution. The ITF heat transport is primarily dictated by Pacific trade winds. It directly affects the south IO, after which the signatures can enter the north IO through the meridional heat transport of the western boundary current. The prevailing warming of the western-to-central IO for 2000-14 was largely induced by equatorial easterly wind trends, Ekman downwelling off the equator, and northeasterly wind trends over the west Asia-East Africa coastal region. The increasing downward longwave radiation, probably reflecting anthropogenic greenhouse gas forcing, overcame the decreasing surface shortwave radiation and also made a significant contribution to the rapid upper-IO warming after 2000.
关键词	Indian Ocean Ocean circulation Wind stress Pacific decadal oscillation Multidecadal variability
DOI	10.1175/JCLI-D-18-0116.1
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[41776001] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-01-01] ; Aoshan Talents Program ; Qingdao National Laboratory for Marine Science and Technology (Grant 2015ASTP) ; NSF-AGS[1446480] ; NSF-OCE[1658132] ; National Natural Science Foundation of China (NSFC)[41776001] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-01-01] ; AoShan Talents Program ; Qingdao National Laboratory for Marine Science and Technology (Grant 2015ASTP) ; NSF-AGS[1446480] ; NSF-OCE[1658132]
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000442201100001
出版者	AMER METEOROLOGICAL SOC
引用统计	被引频次：45[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/159865
专题	海洋环流与波动重点实验室
通讯作者	Li, Yuanlong
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA 3.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China 4.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA 5.Chinese Acad Sci, Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China 6.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
第一作者单位	海洋环流与波动重点实验室
通讯作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Li, Yuanlong,Han, Weiqing,Hu, Aixue,et al. Multidecadal Changes of the Upper Indian Ocean Heat Content during 1965-2016[J]. JOURNAL OF CLIMATE,2018,31(19):7863-7884.
APA	Li, Yuanlong,Han, Weiqing,Hu, Aixue,Meehl, Gerald A.,&Wang, Fan.(2018).Multidecadal Changes of the Upper Indian Ocean Heat Content during 1965-2016.JOURNAL OF CLIMATE,31(19),7863-7884.
MLA	Li, Yuanlong,et al."Multidecadal Changes of the Upper Indian Ocean Heat Content during 1965-2016".JOURNAL OF CLIMATE 31.19(2018):7863-7884.

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