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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (2): 390-395    DOI: 10.7522/j.issn.1000-694X.2013.00054
Weather and Climate     
Wavelet Analysis on the Temporal Series of Principal ClimateFactors in Mu Us Sandy Land during 1969-2009
HU Yong-ning1,2, WANG Lin-he1, ZHANG Guo-sheng1, QIN Yan3, WANG Ying4, ZHAO Pei-lin4
1.Inner Mongolia Agricultural University, Hohhot 010018, China;
2.Institute of Forestry Monitoring & Planning of Inner Mongolia, Hohhot 010020, China;
3.Grassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot 010010, China;
4.Forestry Bureau of Wushen Banner, Wushen Banner 017300, Inner Mongolia, China
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Abstract  

Based on air temperature, precipitation and relative humidity data from 5 meteorological stations in Mu Us Sandy Land from 1969 to 2009, the periodic variations and jump features of the climate change under different time scales were analyzed by Morlet wavelet analysis method, and the future tendencies of the main meteorological element were forecasted according to their main periods. Results showed that air temperature increased with fluctuation in Mu Us Sandy Land during 1969-2009, but the change trends of precipitation and relative humidity were not significant; A complex nested structure for multi-time scales existed in the process of climate change, and the oscillation trend was not consistent for different temporal scales, while it changed from a disorderly and violent oscillation at short-term scale to a regular oscillation at long-term scale; And now the climate was at a transition stage from warm-dry to warm-wet, and the warm-wet tendency was affected mainly by the periodic climate change.

Key words:  Mu Us Sandy Land      air temperature      precipitation      relative humidity      wavelet analysis     
Received:  23 April 2012      Published:  29 May 2012
ZTFLH:  P467  

Cite this article: 

HU Yong-ning1,2, WANG Lin-he1, ZHANG Guo-sheng1, QIN Yan3, WANG Ying4, ZHAO Pei-lin4. Wavelet Analysis on the Temporal Series of Principal ClimateFactors in Mu Us Sandy Land during 1969-2009. JOURNAL OF DESERT RESEARCH, 2013, 33(2): 390-395.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00054     OR     http://www.desert.ac.cn/EN/Y2013/V33/I2/390

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