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中国沙漠 ›› 2005, Vol. 25 ›› Issue (5): 658-662.

• 研究论文 • 上一篇    下一篇

冻土对沙尘暴的影响研究

赵建华1,2, 俞亚勋1,2, 孙国武1,2   

  1. 1. 中国气象局兰州干旱气象研究所, 甘肃兰州 730020;
    2. 甘肃省气候变化与防灾减灾重点实验室, 甘肃兰州 730020
  • 收稿日期:2004-09-13 修回日期:2004-10-12 出版日期:2005-10-20 发布日期:2005-10-20
  • 作者简介:赵建华(1976-),男(汉族),宁夏中卫人,助研,主要从事中尺度天气研究。E-mail:pine_guest@163.com

Influence of Frozen Soil on Sandstorm

ZHAO Jian-hua1,2, YU Ya-xun1,2, SUN Guo-wu1,2   

  1. 1. Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China;
    2. Key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou 730020, China
  • Received:2004-09-13 Revised:2004-10-12 Online:2005-10-20 Published:2005-10-20

摘要: 利用1951-2000年中国大陆685个沙尘暴站、412个冻土深度及706个气温站的观测资料,分析了近50a来沙尘暴与冻土深度的时空分布特征。结果表明:沙尘暴多发中心总与当月的冻深极小值或相对低值区对应,且冻深越小(大),沙尘暴日数越大(小);气温是冻深与沙尘暴反相关关系的纽带。

关键词: 冻土深度, 沙尘暴, 气温

Abstract: The temporal-spatial distributing characteristics of sandstorm days and frozen-soil depth were analyzed based on observation data from 685 sandstorm stations, 412 frozen-soil depth stations and 706 air temperature stations of China mainland. The results indicated that (1) the centers of sandstorm are always corresponding to the minimum center or the relative smaller area of frozen soil depth, which means that the less (more) frozen soil depth is, the more(less) sandstorm days are; (2) air temperature is the link between frozen soil depth and sandstorm.

Key words: frozen soil depth, sandstorm days, air temperature

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