Dust Event in the Gobi Desert on 22-23 May 2013: Transport of Dust from the Atmospheric Boundary Layer to the Free Troposphere by a Cold Front
Dust Event in the Gobi Desert on 22-23 May 2013: Transport of Dust from the Atmospheric Boundary Layer to the Free Troposphere by a Cold Front
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DOI：
10.2151/sola.2015-035
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发表时间：
2015
期刊：
影响因子：
1.9
通讯作者：
K. Kawai;K. Kai;Yoshitaka Jin;N. Sugimoto;D. Batdorj
中科院分区：
文献类型：
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作者：
K. Kawai;K. Kai;Yoshitaka Jin;N. Sugimoto;D. Batdorj
2013年5月22日至23日，戈壁沙漠因风速达到16米/秒的强风而发生沙尘天气。强风是由发展中的低压系统和冷锋造成的。本文利用安装在戈壁中部蒙古达兰扎德嘎德的云高仪观测了沙尘层和冷锋系统的垂直结构。沙尘层在地面上延伸了12个小时，其最高高度达到地面以上1.8公里（AGL）。沙尘暴期间，冷锋经过，冷空气团取代了暖空气团。冷空气团的顶部高度小于1.8公里AGL。另外，观测结果还表明，有一部分沙尘是由沿着冷锋地面上升的暖空气从大气边界层输送到自由对流层的。（引用：Kawai，K.，K. Kai，Y. Jin，N. Sugimoto和D. Batdorj，2015年：2013年5月22 - 23日戈壁沙漠沙尘事件：由冷锋将沙尘从大气边界层输送到自由对流层。SOLA，11，156−159，doi：10.2151/ sola.2015-035.）
A dust event occurred in the Gobi Desert on 22−23 May 2013 due to strong wind reaching a speed of 16 m s. The strong wind was caused by a developing low pressure system and a cold front. The vertical structures of the dust layer and cold frontal system were observed by a ceilometer installed at Dalanzadgad, Mongolia, which is located in the central part of the Gobi Desert. The dust layer had extended over the ground surface for 12 hours, and its top height reached 1.8 km above ground level (AGL). During the dust event, the cold front passed, and the cold air mass replaced the warm air mass. The top height of the cold air mass was less than 1.8 km AGL. In addition, the observational results suggest that some dust was transported from the atmospheric boundary layer to the free troposphere by the warm air ascending along the surface of the cold front. (Citation: Kawai, K., K. Kai, Y. Jin, N. Sugimoto, and D. Batdorj, 2015: Dust event in the Gobi Desert on 22−23 May 2013: Transport of dust from the atmospheric boundary layer to the free troposphere by a cold front. SOLA, 11, 156−159, doi:10.2151/ sola.2015-035.)