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  Diatom-based inference of variations in the strength of Asian winter monsoon winds between 17,500 and 6000 calendar years B.P.

Wang, L.-F., Lu, H., Liu, J., Gu, Z., Mingram, J., Chu, G., Li, J., Rioual, P., Negendank, J. F., Han, J., Liu, T. (2008): Diatom-based inference of variations in the strength of Asian winter monsoon winds between 17,500 and 6000 calendar years B.P. - Journal of Geophysical Research, 113, D21101.
https://doi.org/10.1029/2008JD010145

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Datensatz-Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_238051 Versions-Permalink: -
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 Urheber:
Wang, Li-Feng1, Autor              
Lu, H.2, Autor
Liu, J.2, Autor
Gu, Z.2, Autor
Mingram, Jens3, Autor              
Chu, G.2, Autor
Li, J.2, Autor
Rioual, P.2, Autor
Negendank, Jörg F.W.3, Autor              
Han, J.2, Autor
Liu, T.2, Autor
Affiliations:
1Deutsches GeoForschungsZentrum, ou_persistent13              
2External Organizations, ou_persistent22              
35.2 Climate Dynamics and Landscape Evolution, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146046              

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Schlagwörter: diatom, Asian winter monsoon, the last glacial Holocene.
 DDC: 550 - Earth sciences
 Zusammenfassung: We present a continuous record of fossil diatoms from Huguang Maar Lake (HML) in southeastern China, spanning the time interval 17,500 to 6000 calendar years (cal years) B.P. The seasonal change in relative abundance of the dominant diatom taxa, Aulacoseira and Cyclotella species, can be used as a proxy of the strength of winter monsoon winds (WMW), which is supported by the results of a sediment trap experiment in HML and by an extensive review of the literature on the autoecologies of these species. In the sediment, high C. stelligera abundance and high-diatom concentration, which indicate warm conditions and low wind-driven turbulence of the water column, characterize an interval equivalent to the Greenland Interstadial 1. This is followed by an interval with low-diatom concentration and with assemblages dominated by Aulacoseira species, which suggests high wind-driven turbulence and therefore strong WMW. This interval corresponds with the Greenland Stadial 1. During the early and middle Holocene, another two episodes with strong WMW are evident from the data between 10,000 and 8500 and between 7000 and 6000 cal years B.P. The diatom record implies that strong winter monsoon episodes not only occurred during the last glacial-Holocene transition but also during the Holocene “thermal maximum.”

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 Datum: 2008
 Publikationsstatus: Final veröffentlicht
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 Art der Begutachtung: -
 Identifikatoren: eDoc: 12468
GFZPOF: 3.0 Klimavariabilität und Lebensraum des Menschen
DOI: 10.1029/2008JD010145
 Art des Abschluß: -

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Titel: Journal of Geophysical Research
Genre der Quelle: Zeitschrift, SCI, Scopus
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Seiten: - Band / Heft: 113, D21101 Artikelnummer: - Start- / Endseite: - Identifikator: CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/journals268