气候变化领域集成服务门户(CCPortal): Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells

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DOI	10.1073/pnas.1916784117
	Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells
	Yan H.; Liu C.; An Z.; Yang W.; Yang Y.; Huang P.; Qiu S.; Zhou P.; Zhao N.; Fei H.; Ma X.; Shi G.; Dodson J.; Hao J.; Yu K.; Wei G.; Yang Y.; Jin Z.; Zhou W.
发表日期	2020
ISSN	0027-8424
起始页码	7038
结束页码	7043
卷号	117 期号:13
英文摘要	Paleoclimate research has built a framework for Earth's climate changes over the past 65 million years or even longer. However, our knowledge of weather-timescale extreme events (WEEs, also named paleoweather), which usually occur over several days or hours, under different climate regimes is almost blank because current paleoclimatic records rarely provide information with temporal resolution shorter than monthly scale. Here we show that giant clam shells (Tridacna spp.) from the tropical western Pacific have clear daily growth bands, and several 2-y-long (from January 29, 2012 to December 9, 2013) daily to hourly resolution biological and geochemical records, including daily growth rate, hourly elements/Ca ratios, and fluorescence intensity, were obtained. We found that the pulsed changes of these ultra-high-resolution proxy records clearly matched with the typical instrumental WEEs, for example, tropical cyclones during the summer-autumn and cold surges during the winter. When a tropical cyclone passes through or approaches the sampling site, the growth rate of Tridacna shell decreases abruptly due to the bad weather. Meanwhile, enhanced vertical mixing brings nutrient-enriched subsurface water to the surface, resulting in a high Fe/Ca ratio and strong fluorescence intensity (induced by phytoplankton bloom) in the shell. Our results demonstrate that Tridacna shell has the potential to be used as an ultrahigh- resolution archive for paleoweather reconstructions. The fossil shells living in different geological times can be built as a Geological Weather Station network to lengthen the modern instrumental data and investigate the WEEs under various climate conditions. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Biogeochemical proxies; Daily growth bands; Tridacna shell; Ultra-high resolution; Weather-timescale extreme events
语种	英语
scopus关键词	calcium; iron; algal bloom; animal shell; Article; autumn; biogeochemistry; clam; climate change; growth rate; hurricane; nonhuman; priority journal; summer; Tridacna; weather; winter; animal; bivalve; chemistry; growth, development and aging; paleontology; procedures; Animals; Bivalvia; Extreme Weather; Paleontology
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/161009
作者单位	Yan, H., 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, Institute of Global Environmental Change, Xi'An Jiaotong University, Xi'an, 710049, China; Liu, C., State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; An, Z., State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China, Open Studio for Oceanic-Continental Climate and Environment Changes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China, Interdisciplinary Research Center of Earth Science Frontier, Beijing Normal University, Beijing, 100875, China; Yang, W., Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029,...
推荐引用方式 GB/T 7714	Yan H.,Liu C.,An Z.,et al. Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells[J],2020,117(13).
APA	Yan H..,Liu C..,An Z..,Yang W..,Yang Y..,...&Zhou W..(2020).Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells.Proceedings of the National Academy of Sciences of the United States of America,117(13).
MLA	Yan H.,et al."Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells".Proceedings of the National Academy of Sciences of the United States of America 117.13(2020).