气候变化领域集成服务门户(CCPortal): The first detection of the Madden-Julian Oscillation signal in daily to hourly resolution proxy records derived from a natural archive of Giant Clam Shell (Tridacna spp.)

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DOI	10.1016/j.epsl.2020.116703
	The first detection of the Madden-Julian Oscillation signal in daily to hourly resolution proxy records derived from a natural archive of Giant Clam Shell (Tridacna spp.)
	Yan H.; Zhao N.; Zhou P.; Liu C.; Fei H.; Li M.; Liu F.; Yang Y.; Yang W.; Dodson J.
发表日期	2021
ISSN	0012821X
卷号	555
英文摘要	The Madden-Julian Oscillation (MJO) is the most prominent mode of intraseasonal variability in the tropics which is responsible for much of the observed intraseasonal climate variance not only there but also in higher latitudes. The short time-span of modern instrumental data limits our understanding of the MJO and obtaining MJO information from natural archives could extend this greatly. Here a Giant Clam shell (Tridacna spp.) with a life span about two years (from January 29, 2012 to December 9, 2013) was collected from the northern South China Sea, in the western Pacific. Several daily to hourly resolution biological and geochemical proxy records, including the daily growth rate, hourly Fe/Ca, Sr/Ca and fluorescence intensity, were developed to compare these with local weather/climate records. Spectral analyses suggested that these ultra-high resolution proxy records can clearly record MJO variability in the tropics. The substantial connection between the proxy records and MJO possibly linking through the local effective solar radiation, SST, precipitation and wind speeds. This is the first record of the MJO signal in a natural paleoclimate archive. Our findings provide new insights to study the MJO beyond the instrumental records, and since fossil Tridacna shells from different geological times can be used to investigate the MJO under various climate conditions. © 2020 Elsevier B.V.
关键词	daily growth rate MJO proxy records Tridacna shell ultra-high-resolution
英文关键词	Artificial life; Molluscs; Oceanography; Shellfish; Spectrum analysis; Tropics; Effective solar radiations; Fluorescence intensities; Geochemical proxies; Instrumental data; Intraseasonal variability; Madden-Julian oscillation; Northern South China Sea; Ultrahigh resolution; Climatology; bivalve; climate signal; detection method; diurnal variation; Madden-Julian oscillation; paleoclimate; proxy climate record; shell; Pacific Ocean; Pacific Ocean (West); South China Sea; Tridacna
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203348
作者单位	State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China; Open Studio for Oceanic-Continental Climate and Environment Changes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; University of Chinese Academy of Sciences, Beijing, 100049, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China
推荐引用方式 GB/T 7714	Yan H.,Zhao N.,Zhou P.,et al. The first detection of the Madden-Julian Oscillation signal in daily to hourly resolution proxy records derived from a natural archive of Giant Clam Shell (Tridacna spp.)[J],2021,555.
APA	Yan H..,Zhao N..,Zhou P..,Liu C..,Fei H..,...&Dodson J..(2021).The first detection of the Madden-Julian Oscillation signal in daily to hourly resolution proxy records derived from a natural archive of Giant Clam Shell (Tridacna spp.).Earth and Planetary Science Letters,555.
MLA	Yan H.,et al."The first detection of the Madden-Julian Oscillation signal in daily to hourly resolution proxy records derived from a natural archive of Giant Clam Shell (Tridacna spp.)".Earth and Planetary Science Letters 555(2021).