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  • CN 62-1070/P
  • ISSN 1000-694X
  • 双月刊 创刊于1981年
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天气与气候

咸海地区粉尘气溶胶动态变化及潜在扩散特征

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  • 1. 中国科学院新疆生态与地理研究所 荒漠与绿洲生态国家重点实验室, 新疆 乌鲁木齐 830011;
    2. 中国科学院中亚生态与环境研究中心, 新疆 乌鲁木齐 830011;
    3. 新疆师范大学 生命科学学院, 新疆 乌鲁木齐 830054;
    4. 南京农业大学 植物保护学院/农作物生物灾害综合治理教育部重点实验室, 江苏 南京 210095;
    5. 内蒙古大学 环境与资源学院, 内蒙古 呼和浩特 010021
葛拥晓(1987-),男,山东泰安人,主要研究方向为流域地表过程与环境演变。E-mail:yongxiao-ge@hotmail.com

收稿日期: 2015-04-27

  修回日期: 2015-06-23

  网络出版日期: 2016-09-20

基金资助

国家自然科学基金项目(41471098)

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

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  • 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 date: 2015-04-27

  Revised date: 2015-06-23

  Online published: 2016-09-20

摘要

咸海水位不断下降导致湖滨荒漠化加剧,尘暴频发,区域环境恶化。利用臭氧观测仪(OMI)气溶胶数据和HYSPLIT(Hybrid Single Particle Lagrangian Integrated Trajectory Model)模型,对咸海地区近期粉尘气溶胶变化及其潜在扩散特征进行了研究。结果表明:2005年以来,咸海地区粉尘活动不断增强,OMI气溶胶指数年平均值、方差、中值和最大值均呈现快速增加趋势,2013年OMI气溶胶指数平均值已经上升至1.47;OMI气溶胶指数具有明显的季节变化特征,春季(3-5月)和秋末初冬(11月-次年1月)是两个气溶胶指数峰值区;在相同时间内,春季和冬季的粉尘潜在扩散范围最大,秋季次之,夏季最小,且粉尘潜在扩散表现出明显的经向和纬向扩散特征;受气流和地形影响,粉尘潜在扩散主要有东北和西南两个方向。

关键词: 气溶胶; 沙尘; 中亚; 咸海

本文引用格式

葛拥晓, 阿力甫·那思尔, 吉力力·阿不都外力, 刘东伟 . 咸海地区粉尘气溶胶动态变化及潜在扩散特征[J]. 中国沙漠, 2016 , 36(5) : 1374 -1380 . DOI: 10.7522/j.issn.1000-694X.2015.00152

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

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