References(10) Supplementary materials(1) A severe dust storm occurred in Mongolia during 29-31 March 2007. Observed meteorological elements and weather situations during the dust storm period were discussed in this paper. A surface cyclone developed over the territory of Mongolia in association with the trough aloft passing through the country. The cyclone generated the severe dust storm over the Gobi Desert and steppe-desert areas. During the dust storm period, wind speed varied from 10 m s-1 to 40 m s-1 and visibilities were reduced to 2 km. Minimum visibilities were 10-50 m in the Gobi Desert areas. Estimated dust concentrations were varied from 151 μg m-3 to 23847 μg m-3 by the Zamyn-Uud equation and 182 μg m-3 to 9111 μg m-3 by the Dalanzadgad equation. The duration of the dust storm was 1-20 hours at various sites per day. The dust storm caused death of a person and substantial economic loss.
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机译：参考文献（10）补充资料（1）2007年3月29日至31日，蒙古发生了一场严重的沙尘暴。本文讨论了沙尘暴期间观测到的气象要素和天气情况。与高空穿越该国的低谷有关，在蒙古领土上发展了一个地面旋风。飓风在戈壁沙漠和草原沙漠地区造成了严重的沙尘暴。在沙尘暴时期，风速从10 m s-1到40 m s-1不等，能见度降低到2 km。戈壁沙漠地区的最低能见度为10-50 m。根据Zamyn-Uud公式，估计的粉尘浓度为151μgm-3到23847μgm-3，根据Dalanzadgad方程，估计的粉尘浓度为182μgm-3到9111μgm-3。每天在各个地点的沙尘暴持续时间为1-20小时。沙尘暴造成人员死亡和重大经济损失。
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