Climate Model Errors over the South Indian Ocean Thermocline Dome and Their Effect on the Basin Mode of Interannual Variability

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Climate Model Errors over the South Indian Ocean Thermocline Dome and Their Effect on the Basin Mode of Interannual Variability
	Li, Gen; Xie, Shang-Ping; Du, Yan
刊名	JOURNAL OF CLIMATE
	2015
卷号	28 期号:8 页码:3093-3098
通讯作者	ligen@scsio.ac.cn
中文摘要	An open-ocean thermocline dome south of the equator is a striking feature of the Indian Ocean (IO) as a result of equatorial westerly winds. Over the thermocline dome, the El Nino-forced Rossby waves help sustain the IO basin (IOB) mode and offer climate predictability for the IO and surrounding countries. This study shows that a common equatorial easterly wind bias, by forcing a westward-propagating downwelling Rossby wave in the southern IO, induces too deep a thermocline dome over the southwestern IO (SWIO) in state-of-the-art climate models. Such a deep SWIO thermocline weakens the influence of subsurface variability on sea surface temperature (SST), reducing the IOB amplitude and possibly limiting the models' skill of regional climate prediction. To the extent that the equatorial easterly wind bias originates from errors of the South Asian summer monsoon, improving the monsoon simulation can lead to substantial improvements in simulating and predicting interannual variability in the IO.
学科主题	Meteorology & Atmospheric Sciences
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/14993]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Li, Gen,Xie, Shang-Ping,Du, Yan. Climate Model Errors over the South Indian Ocean Thermocline Dome and Their Effect on the Basin Mode of Interannual Variability[J]. JOURNAL OF CLIMATE,2015,28(8):3093-3098.
APA	Li, Gen,Xie, Shang-Ping,&Du, Yan.(2015).Climate Model Errors over the South Indian Ocean Thermocline Dome and Their Effect on the Basin Mode of Interannual Variability.JOURNAL OF CLIMATE,28(8),3093-3098.
MLA	Li, Gen,et al."Climate Model Errors over the South Indian Ocean Thermocline Dome and Their Effect on the Basin Mode of Interannual Variability".JOURNAL OF CLIMATE 28.8(2015):3093-3098.