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Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells

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...

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Autores principales: Yan, Hong, Liu, Chengcheng, An, Zhisheng, Yang, Wei, Yang, Yuanjian, Huang, Ping, Qiu, Shican, Zhou, Pengchao, Zhao, Nanyu, Fei, Haobai, Ma, Xiaolin, Shi, Ge, Dodson, John, Hao, Jialong, Yu, Kefu, Wei, Gangjian, Yang, Yanan, Jin, Zhangdong, Zhou, Weijian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: National Academy of Sciences 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7132106/
https://www.ncbi.nlm.nih.gov/pubmed/32179672
http://dx.doi.org/10.1073/pnas.1916784117
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author Yan, Hong
Liu, Chengcheng
An, Zhisheng
Yang, Wei
Yang, Yuanjian
Huang, Ping
Qiu, Shican
Zhou, Pengchao
Zhao, Nanyu
Fei, Haobai
Ma, Xiaolin
Shi, Ge
Dodson, John
Hao, Jialong
Yu, Kefu
Wei, Gangjian
Yang, Yanan
Jin, Zhangdong
Zhou, Weijian
author_facet Yan, Hong
Liu, Chengcheng
An, Zhisheng
Yang, Wei
Yang, Yuanjian
Huang, Ping
Qiu, Shican
Zhou, Pengchao
Zhao, Nanyu
Fei, Haobai
Ma, Xiaolin
Shi, Ge
Dodson, John
Hao, Jialong
Yu, Kefu
Wei, Gangjian
Yang, Yanan
Jin, Zhangdong
Zhou, Weijian
author_sort Yan, Hong
collection PubMed
description 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 ultra-high-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.
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spelling pubmed-71321062020-04-09 Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells Yan, Hong Liu, Chengcheng An, Zhisheng Yang, Wei Yang, Yuanjian Huang, Ping Qiu, Shican Zhou, Pengchao Zhao, Nanyu Fei, Haobai Ma, Xiaolin Shi, Ge Dodson, John Hao, Jialong Yu, Kefu Wei, Gangjian Yang, Yanan Jin, Zhangdong Zhou, Weijian Proc Natl Acad Sci U S A Physical Sciences 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 ultra-high-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. National Academy of Sciences 2020-03-31 2020-03-16 /pmc/articles/PMC7132106/ /pubmed/32179672 http://dx.doi.org/10.1073/pnas.1916784117 Text en Copyright © 2020 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/ https://creativecommons.org/licenses/by-nc-nd/4.0/This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) .
spellingShingle Physical Sciences
Yan, Hong
Liu, Chengcheng
An, Zhisheng
Yang, Wei
Yang, Yuanjian
Huang, Ping
Qiu, Shican
Zhou, Pengchao
Zhao, Nanyu
Fei, Haobai
Ma, Xiaolin
Shi, Ge
Dodson, John
Hao, Jialong
Yu, Kefu
Wei, Gangjian
Yang, Yanan
Jin, Zhangdong
Zhou, Weijian
Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells
title Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells
title_full Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells
title_fullStr Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells
title_full_unstemmed Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells
title_short Extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells
title_sort extreme weather events recorded by daily to hourly resolution biogeochemical proxies of marine giant clam shells
topic Physical Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7132106/
https://www.ncbi.nlm.nih.gov/pubmed/32179672
http://dx.doi.org/10.1073/pnas.1916784117
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