| 国家重点基础研究发展规划 |
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| Relationship between Sand Dust Transportation and Land Surface-Atmosphere Temperature Difference at Different Land Surface in Dust Source Areas |
| ZHAN Ke-jie1,2, ZHAO Ming3, YANG Zi-hui2, FANG Er-tian2, GUO Shu-jiang2, WANG Qiang-qiang2, WANG Duo-ze2 |
| 1.Lanzhou University, Lanzhou 730000, China; 2.Gansu Desert Control Research Institute, Lanzhou 730000, China; 3.Gansu Forestry Science and Technology Research Academy, Lanzhou 730000, China |
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Abstract Most researches and statistical data showed that heat transport from underlying surface to the atmospheric provided energy to occurrence of sand storms and exerted important influence on it. From Jan. 2006 to May 2007, there were total 27 dust storms events occurred in the study area. Base on the statistic data of temperature difference between land surface and atmosphere in the dust storm days, we analyzed the influence of temperature difference to the vertical distribution characteristics of sand dust horizontal flux and mass-volume concentration. Results indicated that when the temperature difference exceeded 20 ℃, the vertical distribution of sand dust horizontal flux and mass-volume concentration in the oasis-underlying area would change to a certain degree, and the mass-volume concentration, especially, would decrease with the height; the vertical distribution of sand dust horizontal flux and mass-volume concentration oasis-underlying were more sensitive to the temperature difference than that in the desert area and the ecotone of desert-oasis.
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Received: 12 December 2010
Published: 20 May 2011
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Cite this article:
ZHAN Ke-jie;ZHAO Ming;YANG Zi-hui;FANG Er-tian;GUO Shu-jiang;WANG Qiang-qiang;WANG Duo-ze. Relationship between Sand Dust Transportation and Land Surface-Atmosphere Temperature Difference at Different Land Surface in Dust Source Areas. JOURNAL OF DESERT RESEARCH, 2011, 31(3): 655-660.
URL:
http://www.desert.ac.cn/EN/ OR http://www.desert.ac.cn/EN/Y2011/V31/I3/655
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2011, Vol. 31 
