Dynamic Change and Potential Transport Characteristics of Dust Aerosol Originating from the Aral Sea Basin

doi:10.7522/j.issn.1000-694X.2015.00152

JOURNAL OF DESERT RESEARCH ›› 2016, Vol. 36 ›› Issue (5): 1374-1380.DOI: 10.7522/j.issn.1000-694X.2015.00152

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Dynamic Change and Potential Transport Characteristics of Dust Aerosol Originating from the Aral Sea Basin

Ge Yongxiao^1,2, Naser Alipu^3,4, Jilili Abuduwaili^1,2, Liu Dongwei⁵

1. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2. Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences, Urumqi 830011, China;
3. School of Life Science, Xinjiang Normal University, Urumqi 830054, China;
4. College of Plant Protection/Key Laboratory of Integrated Management of Crop Diseases and Pests of Ministry of Education, Nanjing Agricultural University, Nanjing 210095, China;
5. College of Environment and Resources, Inner Mongolia University, Hohhot 010021, China

Received:2015-04-27 Revised:2015-06-23 Online:2016-09-20 Published:2016-09-20

Abstract

Abstract: The falling of Aral Sea level has led to serious ecological disaster. In this paper, OMI aerosol data and HYSPLIT model were used to study the change of dust aerosol index in the Aral Sea basin and its potential transport characteristics in recent years. The results showed that the annual mean value, variance, median and maximum values of OMI aerosol index of the Aral Sea area showed a trend of rapid increase due to the continuous decrease of water level since 2005. The average value of OMI aerosol index has risen to 1.47 by 2013. Aerosol index in spring (March-May) and from late autumn to early winter (November-January of the next year) attained peak, and the change had obvious seasonal difference characteristics. Spring and winter had the largest dust potential transport scope, followed by autumn, and minimum in summer. Dust potential transport showed obvious zonal and meridional diffusion characteristics. Northeast and southwest were the mainly dust potential transport direction in different seasons under the influence of air flow and topography.

Key words: aerosol, dust, Central Asia, Aral Sea

CLC Number:

S151.9

Ge Yongxiao, Naser Alipu, Jilili Abuduwaili, Liu Dongwei. Dynamic Change and Potential Transport Characteristics of Dust Aerosol Originating from the Aral Sea Basin[J]. JOURNAL OF DESERT RESEARCH, 2016, 36(5): 1374-1380.

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Dynamic Change and Potential Transport Characteristics of Dust Aerosol Originating from the Aral Sea Basin

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