| 北极涛动对华北沙尘暴频次的影响 |
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| 引用本文： | 毛睿,龚道溢,包景东,范一大. 北极涛动对华北沙尘暴频次的影响[J]. 地理学报(英文版), 2011, 21(2): 207-218. DOI: 10.1007/s11442-011-0839-4 |
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| 作者姓名： | 毛睿 龚道溢 包景东 范一大 |
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| 作者单位： | State Key Laboratory of Earth Surface Processes and Resource Ecology,Beijing Normal University;Department of Physics,Beijing Normal University;School of Earth and Environmental Sciences,Seoul National University;Chinese Disaster Reduction Center |
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| 基金项目： | China Postdoctoral Science Foundation, No.20090460222; National High Technology Research and Development Program of China, No.2008AA121704; Project Supported by State Key Laboratory of Earth Surface Processes and Resource Ecology, No. 2010-ZY-01 |
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| 摘 要： | This study has investigated the influence of Arctic Oscillation (AO) on dust storm frequency in North China in spring seasons during 1961 2007.There is a significant linkage between dust storm frequency and AO;a negative (positive) AO phase is related to an in-creased (decreased) dust storm frequency in North China.This relationship is closely related to changes in the cold air activity in Mongolia.The cold air activity exerts large impacts on the dust storm frequency;the frequency of cold air activity over Mongolia not only positively cor-relates with the dust storm frequency in North China,but also shows a long-term decreasing trend that is an important reason for the long-term decreasing of dust storm frequency in North China.The AO has large influence on the frequency of cold air activity over Mongolia;a negative (positive) AO phase is highly related to an increased (decreased) frequency of cold air activity over Mongolia,which results in an increased (decreased) dust storm frequency in North China.
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| 关 键 词： | dust storm frequency cold air activity frequency Arctic Oscillation |
| 收稿时间： | 2009-01-02 |
Possible influence of Arctic Oscillation on dust storm frequency in North China |
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| Rui Mao,Daoyi Gong,Jingdong Bao,Yida Fan. Possible influence of Arctic Oscillation on dust storm frequency in North China[J]. Journal of Geographical Sciences, 2011, 21(2): 207-218. DOI: 10.1007/s11442-011-0839-4 |
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| Authors: | Rui Mao Daoyi Gong Jingdong Bao Yida Fan |
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| Affiliation: | (1) Risk Management Solutions, Peninsular House, 30 Monument Street, London, EC3R-8NB, UK;(2) Oxford University Centre for the Environment, South Parks Rd, Oxford, OX1-3QY, UK |
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| Abstract: | This study has investigated the influence of Arctic Oscillation (AO) on dust storm frequency in North China in spring seasons during 1961–2007. There is a significant linkage between dust storm frequency and AO; a negative (positive) AO phase is related to an increased (decreased) dust storm frequency in North China. This relationship is closely related to changes in the cold air activity in Mongolia. The cold air activity exerts large impacts on the dust storm frequency; the frequency of cold air activity over Mongolia not only positively correlates with the dust storm frequency in North China, but also shows a long-term decreasing trend that is an important reason for the long-term decreasing of dust storm frequency in North China. The AO has large influence on the frequency of cold air activity over Mongolia; a negative (positive) AO phase is highly related to an increased (decreased) frequency of cold air activity over Mongolia, which results in an increased (decreased) dust storm frequency in North China. |
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| Keywords: | dust storm frequency cold air activity frequency Arctic Oscillation |
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