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| Relationship between thermal anomalies in Tibetan Plateau and summer dust storm frequency over Tarim Basin, China |
| Yong ZHAO1, HongJun LI1, AnNing HUANG2, Qing HE1, Wen HUO1, MinZhong WANG1 |
1 Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China;
2 School of Atmospheric Sciences, Nanjing University, Nanjing 210093, China |
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Abstract The dust storm is the most important and frequent meteorological disaster over Tarim Basin, which causes huge damages on local social economics. How to predict the springtime and summertime dust storm oc-currence has become a hot issue for meteorologists. This paper employed the data of dust storm frequency and 10-m wind velocity at 35 stations over Tarim Basin and the reanalysis data from the National Center for Environ-mental Prediction and the National Center for Atmospheric Research (NCEP/NCAR) during 1961–2007 to study the relationship between dust storm frequency (DSF) in summer over Tarim Basin and the thermal anomalies in Tibetan Plateau in May by using the statistical methods, such as Empirical Orthogonal Function (EOF), correlation and binomial moving average. The results show when negative anomalies in Tibetan Plateau and positive anomalies in its southern region are present along 30°N (the second mode of surface temperature anomalies by EOF decomposition) in May, the time coefficient (PC2) plays an important role in summer DSF variation and has a close relation with the summer DSF at both inter-annual and decadal time scales. When negative anomalies in Tibetan Plateau and positive anomalies are present in its southern region (PC2 in positive phase), there is an anomalous anticyclone in North China, which weakens the northwest wind and is not beneficial for cold air moving from high latitude to the Tarim Basin, and the circulation pattern is hard to result in dust storm weather. Furthermore, the sea level pressure (SLP) increased over Tarim Basin and the direction of SLP gradient reversed, which resulted in the 10-m wind velocity slowing down, so the DSF decreased. From above all, it can be conclude that the thermal anomalies in Tibetan Plateau in May has important effects on the summertime dust storm frequency over Tarim Basin and the PC2 can be used as a prediction factor for the summertime dust storm occurrence.
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Received: 11 February 2012
Published: 06 March 2013
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| Fund: The National Natural Science Foundation of China (40975097, 41005050) and the Meteoro-logical Scientific and Technological Project of Xinjiang Mete-orological Bureau (200937). |
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Corresponding Authors:
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| Aoki I, Kurosaki Y, Osada R. et al. 2005. Dust storms generated by mesoscale cold fronts in the Tarim Basin. Geophysical Research Letters, 32, L06807, doi: 10.1029/2004GL021776. Ding R Q, Li J P. 2005. Decadal change of the spring dust storm in Northwest China and the associated atmospheric circulation. Geophysical Research Letters, 32, L02808, doi: 10.1029/2005GL021561. Duan A M, Liu Y M, Wu G X. 2003. The sensible heat pattern over the Tibetan Plateau with the rainfall and circulation in eastern Asia in summer. Science in China: Series D, 33(10): 997–1004.Duan A M, Wu G X. 2003. The main spatial heating patterns over the Tibetan Plateau in July and the corresponding distributions of circulation and precipitation over eastern Asia. Acta Meteorologica Sinica, 61(4): 447–456. Duce R A, Unni C K, Ray B J, et al. 1980. Long-range atmospheric transport of soil dust from Asia to the tropical North Pacific: temporal variability. Science, 209: 1522–1524. Fan K, Wang H J. 2004. Antarctic Oscillation and the dust weather frequency in North China. Geophysical Research Letters, 31, L10201, doi: 10.1029/2004/2004GL019465. Gong D Y, Mao R, Fan Y D. 2006. East Asian dust storm and weather disturbance: possible links to the Arctic Oscillation. International Journal of Climatology, 26: 1379–1396.Gong D Y, Mao R, Shi P J, et al. 2007. Correlation between East Asian dust storm frequency and PNA. Geophysical Research Letters, 34, L14710, doi: 10.1029/2007GL029944. Goudie A S. 1983. Dust storms in space and time. Progress in Physical Geography, 7: 502–530.Gu Z C, Ye D Z. 1955a. On the influence of Tibetan Plateau on the circulation over eastern Asia and weather in China. Scientia Sinica, 4: 29–33.Gu Z C, Ye D Z. 1955b. Some calculations of the influence of the large-scale topography on the climate of China. Acta Meteorologica Sinica, 26: 167–182.Hao X M, Li C, Li W H, et al. 2011. Response of climate and hydrologychange to North Atlantic Oscillation and Arctic Oscillation in the west of northern Xinjiang during the last fifty years. Journal of Desert Research, 31(1): 191–198.Husar R B, Tratt D M, Schichtel B A, et al. 2001. Asian dust events of April 1998. Journal of Geophysical Research, 106: 18317–18330.Iwasaka Y, Yamato M, Imazu R, et al. 1988. Transport of Asian dust (KOSA) particles: importance of weak KOSA events on the geochemical cycle of soil particles. Tellus B, 40(5): 494–503.Kalnay E, Kanamitsu M, Kistler R, et al. 1996. The NCEP/NCAR 40-year reanalysis project. Bulletin of American Meteorological Society, 77: 437–471.Kang D J, Wang H J. 2005. Analysis on the decadal scale variation of the dust storm in North China. Science in China: Series D, 48(12): 2260–2266.Li H J, Li J, He Q. 2008. Study on sandstorm trend and abrupt change in Xinjiang. Journal of Desert Research, 28(5): 915–919.Liu Q, Li T S. 2004. Analysis on the temporal and spatial distribution and formation causes of dust weathers in China. Arid Zone Research, 21(4): 461–465.Liu Y F. 1993. The long range variation of sea level pressure and an analysis of spatiotemporal patterns between temperature and pressure in China. Scientia Meteorologica Sinica, 13(2): 193–200.Liu Y X, Guo Y F. 2005. Impact of pressure system anomaly over mid-high latitude on the interdecadal change of East Asia summer monsoon. Plateau Meteorology, 24(2): 129–135.Ma Y, Xiao K T, Wang X. 2006. Climatological characteristics of dust weathers in the Tarim Basin. Acta Scientiarum Naturalium Universitatis Pekinensis, 42(6): 784–790.Ning B Y, Yang X M, Chang L. 2012. Changes of temperature and precipitation extremes in Hengduan Mountains, Qinghai-Tibet Plateau in 1961–2008. Chinese Geographical Science, 22(4): 422–436.Quan L S, Shi S Y, Zhu Y F, et al. 2001. Temporal-spatial distribution characteristics and causes of dust-day in China. Acta Geographica Sinica, 56(4): 477–485.Tang H Y, Zhai P M, Chang Y K. 2005. SVD analysis between Northern Hemisphere 500 hPa heights and spring duststorms over northern China. Journal of Desert Research, 25(4): 570–576.Wang J S, Chen F H, Jin L Y, et al. 2008. Relationships between climatic anomaly in arid region of center-east Asia and sea level pressure anomaly in the last 100 years. Plateau Meteorology, 27(1): 84–95.Wang S G, Wang J Y, Zhou Z J, et al. 2003. Regional characteristics of dust event in China. Acta Geographica Sinica, 58(2): 193–200.Wang X L, Zhai P M. 2004. The spatial and temporal variations of spring dust storms in China and its associations with surface winds and sea level pressures. Acta Meteorologica Sinica, 62(1): 96–103. Westphal D L, Toon O B, Carlson T N. 1988. A case study of mobilization and transport of Saharan dust. Journal of Atmospheric Science, 45: 2145–2175.Zhang J B, Deng Z F. 1987. A Conspectus of Precipitation in Xinjiang. Beijing: China Meteorological Press, 10–15.Zhang J B, Shi Y G. 2002. Climate Change and Short-term Climate Prediction in Xinjiang. Beijing: China Meteorological Press, 231–233.Zhang R J, Han Z W, Wang M X, et al. 2002. Dust storm weather in China: new characteristics and origins. Quaternary Sciences, 22(4): 374–380. Zhao P, Chen L X. 2001. Climatic features of atmospheric heat source/sink over the Qinghai-Xizang Plateau in 35 years and its relation to rainfall in China. Chinese Science: Series D, 44(9): 858–864. |
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