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Numerical Simulation of the Direct Radiative Effects of Dust Aerosol on the East Asian Winter Monsoon
Joint Authors
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-06-07
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Variations of the East Asian winter monsoon (EAWM) induced by dust aerosol are studied by using a regional climate model (RegCM4/Dust).
Dust coupled and uncoupled experiments are carried out for the past decade (2000–2009).
The coupled RegCM4 captures three centers of dust mixing ratio (DMR) located in the Taklamakan Desert, western Inner Mongolia, and northern Xinjiang, respectively, with maximum values greater than 500 µg kg−1 in winter.
The surface total radiation change induced by dust is negative, and its central value of −8 W m−2 results in surface temperature cooling by 1.5°C in winter.
Dust induced radiation change at the top of the atmosphere (TOA) is also negative in Northern China, except over the Tibetan Plateau (TP), and up to −5 W m−2 in Central China.
Dust cooling effects increase the sea level pressure (SLP) gradient between land and ocean, the cold surge frequency, and the East Asian jet stream (EAJ) intensity and then enhance the EAWM.
The dry and cold wind pervade most areas of East Asia, suppressing large-scale precipitation and eventually leading to a rainfall decrease of about 10–30% in Northern China and the middle Yangtze River Valley.
American Psychological Association (APA)
Sun, Hui& Liu, Xiaodong. 2015. Numerical Simulation of the Direct Radiative Effects of Dust Aerosol on the East Asian Winter Monsoon. Advances in Meteorology،Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1052663
Modern Language Association (MLA)
Sun, Hui& Liu, Xiaodong. Numerical Simulation of the Direct Radiative Effects of Dust Aerosol on the East Asian Winter Monsoon. Advances in Meteorology No. 2015 (2015), pp.1-15.
https://search.emarefa.net/detail/BIM-1052663
American Medical Association (AMA)
Sun, Hui& Liu, Xiaodong. Numerical Simulation of the Direct Radiative Effects of Dust Aerosol on the East Asian Winter Monsoon. Advances in Meteorology. 2015. Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1052663
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052663