IGSNRR OpenIR
duststormsevolutionintaklimakandesertanditscorrelationwithclimaticparameters
XIAO Fengjin1; ZHOU Caiping2; LIAO Yaoming1
2008
Source Publicationjournalofgeographicalsciences
ISSN1009-637X
Volume18Issue:4Pages:415
AbstractBased on the sand dust storms data and climatic data in 12 meteorological stations around sand dust storm originating areas of the Taklimakan Desert, we analyzed the trends of the number of dust storm days from 1960 to 2005 as well as their correlations with temperature, precipitation, wind speed and the number of days with mean wind speed >= 5 m/s. The results show that the frequency of dust storm events in the Taklimakan region decreased with the elapse of time. Except Ruoqiang and Minfeng, in the other 10 meteorological stations, the frequency of dust storm events reduces, and in 4 meteorological stations of Kuqa, Korla, Kalpin and Hotan, the frequency of dust storm events distinctly decreases. The temperature has an increasing trend, while the average wind speed and the number of days with mean wind speed 5 m/s have decreasing trends. The correlation analysis between the number of days of dust storms and climatic parameters demonstrates that wind speed and the number of days with mean wind speed >= 5 m/s have strong positive correlation with the number of days of dust storms, with the correlations coefficients being 0.743 and 0.720 (P<0.01), respectively, which indicates that strong wind is the direct factor resulting in sand dust storms. Whereas precipitation has significant negative correlation with the number of days of dust storms (p<0.01), and the prior annual precipitation has also negative correlation, which indicates that the prior precipitation restrains the occurrence of sand dust storms, but this restraining action is weaker than the same year's precipitation. Temperature has negative correlation with the number of dust storm days, with a correlations coefficient of -0.433 (P<0.01), which means that temperature change also has impacts on the occurrence of dust storm events in the Taklimakan region.
Language英语
Funding Project[National Science and Technology] ; [CMA project of Meteorological Disaster Assessment]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/89931
Collection中国科学院地理科学与资源研究所
Affiliation1.Laboratory for Climate Studies; National Climate Center
2.中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
XIAO Fengjin,ZHOU Caiping,LIAO Yaoming. duststormsevolutionintaklimakandesertanditscorrelationwithclimaticparameters[J]. journalofgeographicalsciences,2008,18(4):415.
APA XIAO Fengjin,ZHOU Caiping,&LIAO Yaoming.(2008).duststormsevolutionintaklimakandesertanditscorrelationwithclimaticparameters.journalofgeographicalsciences,18(4),415.
MLA XIAO Fengjin,et al."duststormsevolutionintaklimakandesertanditscorrelationwithclimaticparameters".journalofgeographicalsciences 18.4(2008):415.
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