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Comment on "Asynchronous variation in the East Asian winter monsoon during the Holocene" by Xiaojian Zhang, Liya Jin, and Na Li ArchiMer
Rashid, Harunur; Marche, Brittany; Vermooten, Marli; Parry, Devon; Webb, Michaela; Brockway, Brent; Langer, Keesha.
Comparing paleoproxy records throughout China and two climate models simulation results, Zhang et al. (2015) reported asynchronous Holocene spatiotemporal decline of the East Asian winter monsoon. Six sea surface temperature (SST) proxy records from the Atlantic Ocean and northern Indian Ocean and South China Sea were used to validate climate simulations results. However, the referred Mg/Ca SST record from the western Atlantic Ocean is simply nonexistent and the northeast Atlantic Mg/Ca SST data do not reflect winter SST as Zhang et al. (2015) argued to support the driving mechanisms. Furthermore, the western Indian Ocean SSTs data used in Zhang et al. (2015) do not reflect the winter SSTs or regional changes in the Holocene SSTs. Therefore, we question...
Tipo: Text Palavras-chave: East Asian winter monsoon; Holocene; Subpolar North Atlantic Ocean; Eastern tropical Indian Ocean.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00421/53265/54673.pdf
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Changes in Deep Water Oxygenation of the South China Sea Since the Last Glacial Period ArchiMer
Li, Gang; Rashid, Harunur; Zhong, Lifeng; Xu, Xing; Yan, Wen; Chen, Zhong.
The Pacific meridional overturning circulation is thought to have a significant influence on global climate. However, the extent to which intermediate and deep circulations have changed in the Pacific Ocean since the Last Glacial Maximum (LGM) is not well known. At present, the South China Sea Deep Water (SCSDW) is fed by the upper Pacific Deep Water. Here we present new benthic foraminiferal C-13 and redox-sensitive elemental data from a sediment core retrieved from the southern deep SCS to reconstruct the oxygenation history of the SCSDW since the LGM. Oxygenation records from the deep SCS and intermediate and deep waters in the Pacific Ocean demonstrate that the SCSDW deeper than 1,600m has been sourced by the Pacific Deep Water since the LGM. Our data...
Tipo: Text Palavras-chave: Redox-sensitive element; Oxygenation; Pacific Deep Water; South China Sea Deep Water; North Pacific Intermediate Water; Last glacial period.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00497/60817/64615.pdf
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