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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (5): 1299-1304    DOI: 10.7522/j.issn.1000-694X.2013.00192
Desert and Desertification     
Observational Study on Near-surface Horizontal Sand-dust Flux of Sandstorms in the Southeastern Fringe of the Taklimakan Desert
YANG Xing-hua1,2, HE Qing1,2, Ali Mamtimin1,2, HUO Wen1,2, LIU Xin-chun1,2
1.Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China;
2.Taklimakan Desert Atmosphere and Environment Observation Experiment Station, Tazhong 841000,  Xinjiang, China
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Abstract  

Aeolian sand-dust transport is a serious problem in many arid regions in the world, and it is considered to be the significant part of global biogeochemical cycles. While deserts are the main source of aeolian sand-dust transport in the near-surface layer, and aeolian sand-dust transport processes are closely related to the variation of near-surface horizontal sand-dust flux with height. This paper discusses the variation of horizontal sand-dust flux within 0-2 m with height over the ground surface based on one-year observation on sandy land in the southeastern Taklimakan Desert by BSNE samplers. It is revealed that horizontal sand-dust flux amount decays with height, which can be described by power function. There is about 66% of the horizontal sand-dust flux transported within 0-50 cm over the ground surface, and 80% is transported within 0-100 cm over the ground surface. In the studied area, the horizontal sand-dust flux passing height from 0 to 200 cm is 3 627.9 kg·m-1, among them, the amounts of PM80 and PM50 are 1 430.4 kg·m-1 and 216.2 kg·m-1, respectively.

Key words:  sand-dust transport      horizontal sand-dust flux      sandstorms      Taklimakan Desert     
Received:  20 June 2012      Published:  26 July 2012
ZTFLH:  X169  

Cite this article: 

YANG Xing-hua1,2, HE Qing1,2, Ali Mamtimin1,2, HUO Wen1,2, LIU Xin-chun1,2. Observational Study on Near-surface Horizontal Sand-dust Flux of Sandstorms in the Southeastern Fringe of the Taklimakan Desert. JOURNAL OF DESERT RESEARCH, 2013, 33(5): 1299-1304.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00192     OR     http://www.desert.ac.cn/EN/Y2013/V33/I5/1299

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