What Controls Seasonal Variations of the Diurnal Cycle of Sea Surface Temperature in the Eastern Tropical Indian Ocean?

doi:10.1175/JCLI-D-14-00826.1

	What Controls Seasonal Variations of the Diurnal Cycle of Sea Surface Temperature in the Eastern Tropical Indian Ocean?
	Yang, Yang 1,2,3,4; Li, Tim 3,4,5,6; Li, Kuiping 2; Yu, Weidong 2
刊名	JOURNAL OF CLIMATE
	2015-11
卷号	28 期号:21 页码:8466-8485
关键词	Atm Ocean Structure Phenomena Diurnal effects Monsoons Sea surface temperature
ISSN号	0894-8755
DOI	10.1175/JCLI-D-14-00826.1
英文摘要	Recent in situ buoy observations revealed interesting seasonal features of the diurnal sea surface temperature cycle (DSST) in the eastern tropical Indian Ocean. Composite analysis shows that areas away from the equator exhibit stronger seasonal variations of DSST, while weaker seasonal variations appear near the equator. The most interesting characteristic is the distinctive contrast of the seasonal variations of DSST between the Bay of Bengal (BOB) and the region south of the equator (particularly around 12 degrees S). While the range of DSST is weakest in the BOB during boreal summer, it has its largest range around 12 degrees S in austral summer. Furthermore, BOB DSST exhibits two peaks that occur during the monsoon transitions (March-April and October), whereas DSST south of the equator shows only a single peak in its annual cycle.Using a one-dimensional, oceanic, mixed layer model, the authors examined the cause of the distinctive annual cycles of DSST north and south of the equator. Two parallel experiments were conducted at buoy sites 12 degrees N, 90 degrees E and 12 degrees S, 80.5 degrees E driven by surface forcing from the Modern-Era Retrospective Analysis for Research and Applications (MERRA) product. The results demonstrated that, in the BOB, both surface shortwave radiation and wind stress contribute to the March maximum, whereas the wind stress alone drives the October maximum. In contrast, the seasonal variation of DSST south of the equator is primarily caused by the annual cycle of the wind stress, which is extremely weak in austral summer near the intertropical convergence zone (ITCZ). How the monsoon and ITCZ modulate the distinctive annual cycles of DSST is discussed.
资助项目	NSFC[41475084] ; NSFC[41005032]
WOS关键词	WESTERN EQUATORIAL PACIFIC ; MIXED-LAYER ; WARM POOL ; INTRASEASONAL VARIABILITY ; INTERANNUAL VARIABILITY ; SOLAR-RADIATION ; SUMMER MONSOON ; HEAT FLUXES ; IMPACT ; SATELLITE
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER METEOROLOGICAL SOC
WOS记录号	WOS:000363766200010
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25427]
专题	自然资源部第一海洋研究所
通讯作者	Li, Tim
作者单位	1.Ocean Univ China, Coll Phys & Environm Oceanog, Qingdao, Peoples R China 2.State Ocean Adm, Inst Oceanog 1, Ctr Ocean & Climate Res, Qingdao, Peoples R China 3.Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA 4.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA 5.Nanjing Univ Informat Sci & Technol, Climate Dynam Res Ctr, Nanjing, Jiangsu, Peoples R China 6.Nanjing Univ Informat Sci & Technol, Earth Syst Modeling Ctr, Int Lab Climate & Environm Change, Nanjing, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yang,Li, Tim,Li, Kuiping,et al. What Controls Seasonal Variations of the Diurnal Cycle of Sea Surface Temperature in the Eastern Tropical Indian Ocean?[J]. JOURNAL OF CLIMATE,2015,28(21):8466-8485.
APA	Yang, Yang,Li, Tim,Li, Kuiping,&Yu, Weidong.(2015).What Controls Seasonal Variations of the Diurnal Cycle of Sea Surface Temperature in the Eastern Tropical Indian Ocean?.JOURNAL OF CLIMATE,28(21),8466-8485.
MLA	Yang, Yang,et al."What Controls Seasonal Variations of the Diurnal Cycle of Sea Surface Temperature in the Eastern Tropical Indian Ocean?".JOURNAL OF CLIMATE 28.21(2015):8466-8485.