The trend of sand flux and the meteorology elements changes in the near-surface layer of Tengger desert in the spring of 2006

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2008,（21）
• 页码范围: 3346-3353
• 页数: 8页
• 语种: 英文
• DOI: 10.1007/s 11434-008-0363-9

摘要

Dust storm events, especially those associated with strong winds, are immediately dangerous, and have long-term harmful effects. During a dust storm event, dust in the near-surface atmospheric layer decreases visibility, and changes local meteorological parameters. In this paper, we analyzed levels of near-surface turbulence during and outside a dust storm event and found differences in the degree of turbulence, with wind speed increasing and amounts of windblown sand greatly increasing air turbu-lence during the dust storms compared with the corresponding values on s sunny day. In addition, the wind profile during the dust storm deviated from the normal profile and became more complex. In the near-surface atmospheric layer, sand and dust flux during the dust storm also differed from those on a sunny day.