摘要
基于苏尼特右旗1976—2006年的沙尘天气观测资料,对苏尼特右旗沙尘天气的年际变化、月际变化等进行了分析,结果表明,1976—2006年苏尼特右旗沙尘天气呈波动性减少趋势,月平均沙尘天气日数的波动性,与月平均最大风速和月平均大风日数成正相关。扬沙天气出现日数最多,沙尘暴天气次之,浮尘天气出现日数最少。造成沙尘天气除本地沙尘源外,上游沙尘的输送也是产生沙尘天气的重要原因。影响苏尼特右旗沙尘天气的主要天气形势为冷锋和蒙古气旋。
Based on the observation data of sand-dust weather in recent 30 Years in Sunite right country, analyzing the annual variation and monthly variation of sand-dust weather in Sunite right country. The result shows： the fluctuation tendency of occurrence number of sand-dust weather was decreasing in recent 30 years in Suniter right country, there was a positive correlation between the fluctuation of sand-dust weather day number of monthly mean and the maximum wind speed of monthly mean and the strong wind day number of monthly mean, the day number of sand-blowing weather was the most and sand-dust weather was the second and floating dust weather was the least. In addition to local sand-dust source, transportation of upriver sand-dust was an important reason that forming sand-dust weather, the main synoptic situation that influence sand-dust weather of suniter right country was cold front and Mongolia cyclone.
出处
《内蒙古气象》
2009年第3期10-12,共3页
Meteorology Journal of Inner Mongolia
关键词
沙尘暴
观测分析
Sand-dust storm
Observation and analysis
