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