DOI: 10.1016/j.atmosenv.2015.05.035
Scopus记录号: 2-s2.0-84930198964
论文题名: Quiescence of Asian dust events in South Korea and Japan during 2012 spring: Dust outbreaks and transports
作者: Lee Y ; G ; , Ho C ; -H ; , Kim J ; -H ; , Kim J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 114 起始页码: 92
结束页码: 101
语种: 英语
英文关键词: Asian dust
; Dust frequency
; Dust transport
; Spring 2012
Scopus关键词: Aerosols
; Arid regions
; Atmospheric pressure
; Climatology
; Lakes
; Storms
; Aerosol analysis
; Anticyclonic circulation
; Asian dust
; Asian dust event
; Dust frequencies
; Dust transport
; Ozone monitoring instruments
; Prediction systems
; Dust
; aerosol property
; anticyclone
; climatology
; cyclone
; dust storm
; synoptic meteorology
; Article
; atmospheric pressure
; atmospheric transport
; China
; climate
; dust
; frequency analysis
; Japan
; meteorology
; pressure gradient
; priority journal
; South Korea
; spring
; troposphere
; wind
; China
; Japan
; Lake Baikal
; Mongolia
; Pacific Ocean
; Russian Federation
; Sea of Okhotsk
; South Korea
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: This study examined the quiescence of Asian dust events in South Korea and Japan during the spring of 2012, presenting a synoptic characterization and suggesting possible causes. Synoptic observation reports from the two countries confirmed that spring 2012 had the lowest number of dust events in 2000-2012. The monthly dust frequency (DF) in March 2012 over the dust source regions, i.e., deserts in northern China and Mongolia, indicated a significant decrease compared to the 12 year (2000-2011) March climatology. The DF in April 2012 was comparable to the 12 year climatology values, but in May 2012 it was slightly lower. The daily Ozone Monitoring Instrument Aerosol Index and the Navy Aerosol Analysis and Prediction System simulations revealed stagnant dust movement in March and May 2012. Anomalous anticyclones north of the source regions decreased the dust outbreaks and enhanced the southeasterly winds, resulting in few dust events over the downwind countries (i.e., South Korea and Japan). By contrast, in April 2012, a strong anomalous cyclone east of Lake Baikal slightly increased the dust outbreaks over northeastern China. However, the major dust outbreaks were not transported downwind because of exceptional dust pathways, i.e., the southeastward pathway of dust transport was unusually blocked by the expansion of an anomalous anticyclonic circulation over the Sea of Okhotsk, with dust being transported northeast. © 2015 Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81646
Appears in Collections: 气候变化事实与影响
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作者单位: School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea; Research Institute of Basic Sciences, Chungnam National University, Daejeon, South Korea; Division of Polar Climate Research, Korea Polar Research Institute, Incheon, South Korea; Department of Atmospheric Sciences, Yonsei University, Seoul, South Korea
Recommended Citation:
Lee Y,G,, Ho C,et al. Quiescence of Asian dust events in South Korea and Japan during 2012 spring: Dust outbreaks and transports[J]. Atmospheric Environment,2015-01-01,114