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中国沙漠 ›› 2011, Vol. 31 ›› Issue (4): 1037-1045.

• 天气与气候 • 上一篇    下一篇

2007—2008年库姆塔格沙漠沙尘天气特征与天气分型

霍 文1,2, 何 清1*, 杨兴华1, 赵 勇1, 王式功3, 李耀辉4   

  1. 1.中国气象局 乌鲁木齐沙漠气象研究所, 新疆 乌鲁木齐 830002; 2.新疆师范大学 地理科学与旅游学院, 新疆 乌鲁木齐 830054; 3.兰州大学 大气科学学院, 甘肃 兰州 730000; 4.中国气象局 兰州干旱气象研究所, 甘肃 兰州 730020
  • 收稿日期:2010-11-27 修回日期:2011-05-11 出版日期:2011-07-20 发布日期:2011-07-20

Characteristics of Sand-dust Weather over Kumtagh Desert during 2007—2008 and the Weather Styles

HUO Wen1,2, HE Qing1, YANG Xing-hua1, ZHAO Yong1, WANG Shi-gong3, LI Yao-hui4   

  1. 1.Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China; 2.College of Geographical Science and Tourism, Xinjiang Normal University, Urumqi 830054, China; 3.College of Atmospheric Science, Lanzhou University, Lanzhou 730000, China; 4.Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China
  • Received:2010-11-27 Revised:2011-05-11 Online:2011-07-20 Published:2011-07-20

摘要: 利用2007年库姆塔格沙漠科学考察时自动气象站所获取的数据,分析了沙尘暴过境时库姆塔格沙漠气象要素的变化特征。以库姆塔格沙漠周边气象站点沙尘天气出现时间为依据,选取2008年所有沙尘天气过程,解读相应时间段内Micaps系统中各个层次的资料,客观分析了驱动库姆塔格沙漠沙尘天气爆发的动力成因,将天气形势分为4种类型:冷空气翻山型; 冷空气东灌型; 锋前热低压发展型; 局地对流型。冷空气翻山型与东灌型居多,共7次,锋前热低压发展型与局地对流型较少,仅为2次。利用库姆塔格沙漠北部1号气象站以及南部2号气象站资料,结合库姆塔格沙漠沙尘粒度分析资料,初步讨论了风对库姆塔格沙漠沙丘形态的影响。

关键词: 沙尘天气, 库姆塔格沙漠, 翻山型, 东灌型, 发展型, 对流型

Abstract: Based on the observational data from the automatic weather stations over the Kumtagh Desert in 2007, the climatic element variation features were analyzed. According to occurring time of sand-dust weathers recorded by the weather stations surrounding the Kumtagh Desert, we selected all the sand-dust weather processes in 2008 in Kumtagh Desert and interpreted the data at different layers from Micaps system, and analyzed the dynamic causes for driving sand-dust weathers, and classified the weather status into four styles, namely the tramp-over-hill style, the easterly-fill style, the evolution style, and the convection style. The first two styles occurred 7 times, and the last two styles occurred only twice. Finally, combined with the sand grain size data, the impact of wind to shape of sand dunes in the desert was discussed.

Key words: sand-dust weather, Kumtagh Desert, tramp-over-hill style, easterly-fill style, evolution style, convection style

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