The Spatio-temporal Distribution and Transport Behavior of a Dust Event in North China

doi:10.7522/j.issn.1000-694X.2013.00210

JOURNAL OF DESERT RESEARCH

2013, Vol. 33

Issue (5): 1440-1452 DOI: 10.7522/j.issn.1000-694X.2013.00210

Weather and Climate

The Spatio-temporal Distribution and Transport Behavior of a Dust Event in North China

ZHENG You-fei1,2, LIU Zhen1,2, LIU Jian-jun2, YIN Ji-fu2, WU Rong-jun3

1.Jiangsu Key Laboratory of Meteorological Disaster, Nanjing University of Information Science & Technology, Nanjing 210044, China;
2.College of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China;
3.College of Environmental Science and Engineering, Nanjing University of Information Science &Technology, Nanjing 210044, China

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Abstract

The spatio-temporal evolution and long-distance transport behavior of a heavy dust storm during April 28-30, 2011 were analyzed using a combination of the CALIPSO (Cloud-Aerosol Lidar Infrared Pathfinder Satellite Observations) Satellite measurements, a back-trajectory, as well as an aerosol model. The results showed that the dust event has two different source regions, south Xinjiang Basin and central and southern regions of Mongolia, respectively. The dust originated from these two regions met in the southwest of Inner Mongolia and Gansu during their transportation. The dust in south Xinjiang Basin was mainly located below 1 km with the averaged linear volume depolarization ratio of 0.35 and color ratio of 0.6, respectively. It mainly affected the southwestern of Inner Mongolia, Gansu and Ningxia. The dust particles were mainly located between 2.5 and 3 km high with linear volume depolarization ratio from 0.3 to 0.5 and color ratio from 0.5 to 0.9 when dust particles were transported to the Inner Mongolia and Gansu. The central and western region of Inner Mongolia, Gansu, northern Shanxi, central and eastern areas of Inner Mongolia, northern Hebei, Beijing, Tianjin and the western part of the northeast China were successively influenced by the dust originated from the central and southern Mongolia and the dust particles are mainly located in 1-4 km high, with linear volume depolarization ratio and color ratio concentrated on 0.3-0.5 and 0.7-1.2, respectively, in the east of Inner Mongolia, Beijing and Hebei.

Key words: dust CALIPSO vertical distribution depolarization ratio color ratio

Received: 09 July 2012 Published: 10 September 2012

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	Articles by authors
	ZHENG You-fei1
	2
	LIU Zhen1
	2
	LIU Jian-jun2
	YIN Ji-fu2
	WU Rong-jun3

Cite this article:

ZHENG You-fei1,2, LIU Zhen1,2, LIU Jian-jun2, YIN Ji-fu2, WU Rong-jun3. The Spatio-temporal Distribution and Transport Behavior of a Dust Event in North China. JOURNAL OF DESERT RESEARCH, 2013, 33(5): 1440-1452.

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http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00210 OR http://www.desert.ac.cn/EN/Y2013/V33/I5/1440

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