最新科研进展
Cold surges and dust events: Establishing the link between the East Asian Winter Monsoon and the Chinese loess record
Karl-Heinz Wyrwoll a,*, Junhong Wei b,c, Zhaohui Linb, Yaping Shaod, Feng Hee,f
a School of Earth and Environment,The University of Western Australia,Crawley,WA,Australia
b International Center for Climate and Environment Sciences,InstituteofAtmosphericPhysics,ChineseAcademyofSciences,Beijing,China
c Department of Meteorology,Pennsylvania State University,University Park,USA
d Institute for Geophysics and Meteorology,University of Cologne,Cologne,Germany
e Center for Climatic Research,Nelson Institute for Environmental Studies,University of Wisconsin-Madison,Madison,USA
f College of Earth,Ocean,and Atmospheric Sciences,Oregon State University,Corvallis,USA
Abstract:
The Chinese loess/palaeosol succession is one of the most comprehensive and intensively studied ar- chives of Neogene and Quaternary global palaeoclimate events.Its stratigraphic details are widely rec- ognised to indicate close links to the history and function of the East Asian Winter Monsoon(EAWM) .One of the most active components of the Earth's climate system.But the formal meteorological links between the EAWM and dust emission,both in the present day and in the past,have not been established and with it,the veracity of the loess record as an indicator of the EAWM questioned.Here we show that present day major dust events over northern China, while largely occurring during spring,are never- theless ‘conditioned’ by the strength of the preceding EAWM.We also demonstrate,for the ？rst time,a close link between the occurrence of dust events and the strength of the EAWM.From these ？ndings, linked to global-scale climate model simulations,we conclude that the Chinese loess succession provides a convincing proxy record of the strength of the East Asian Winter Monsoon.
Key words:
Loess Winter Monsoon East Asia
Citation:
Quaternary Science Reviews 149(1),October 2016,Pages102–108,http://dx.doi.org/10.1016/j.quascirev.2016.04.015
