| 库尔勒市历年沙尘天气发生特性分析 |
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| 引用本文： | 赵海珍,买买提·阿布来提,巴特尔·巴克,窦文杰.库尔勒市历年沙尘天气发生特性分析[J].高原山地气象研究,2012,32(3):50-53. |
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| 作者姓名： | 赵海珍 买买提·阿布来提 巴特尔·巴克 窦文杰 |
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| 作者单位： | 1. 新疆农业大学草业与环境科学学院,乌鲁木齐,830052
2. 乌鲁木齐市气象局,乌鲁木齐,830002 |
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| 基金项目： | 国家自然科学基金(31060169)项目;霍英东青年教师基金(121019);新疆维吾尔自治区土壤学重点科学资助 |
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| 摘 要： | 本文根据1971～2010年库尔勒市气象实测资料,分析了库尔勒市沙尘天气40年变化特征,以及沙尘天气与平均风速,降水量,平均相对湿度,平均地面0cm温度和平均气温等气象因子之间的关系。结果表明：沙尘暴、扬沙、浮尘等沙尘天气在年际、季节与各月变化上具有一致性。20世纪的70年代沙尘天气发生日数最多,从1971～2005年沙尘天气发生日数呈波动下降趋势,1971年最高,共出现沙尘天气112d但不同沙尘天气发生日数最值出现的年份不同,2005～2010年沙尘天气发生日数又开始回升,到2010年沙尘天气的发生次数已接近70年代的平均水平。其次,沙尘天气呈现春夏季节发生日数多,秋冬发生日数少的季节变化趋势,每年的4月沙尘天气出现最多,1月沙尘天气出现最少。沙尘天气的发生与空气相对湿度、降水量呈现极显著的负相关,与风速呈现极显著的正相关,而与气温的变化关系不明显。根据2010年4月的沙尘颗粒物监测表明,沙尘天气使大气中的Ca、Mg、Fe等地壳元素含量增加。
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| 关 键 词： | 库尔勒市 沙尘天气 发生规律 元素含量 |
Analysis on Sand–dust Weather Characteristics in Korla over the Years |
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| ZHAO Haizhen
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MAI Maiti-Abulaiti
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BA Ter-Bake
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DOU Wenjie.Analysis on Sand–dust Weather Characteristics in Korla over the Years[J].Plateau and Mountain Meteorology Research,2012,32(3):50-53. |
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| Authors: | ZHAO Haizhen MAI Maiti-Abulaiti BA Ter-Bake DOU Wenjie |
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| Institution: | 1(1.Faculty of Grassland and Environmental Science,Xinjiang Agricultural University,Urumqi,830052;2.Urumqi Meteorological Bureau,Urumqi,830002) |
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| Abstract: | Based on meteorological measured data in Korla Cityn from 1971 to 2010,40 years of dust weather variations and the relationship between dust weather and meteorological factors,such as average wind speed,rainfall,average relative humidity,average temperature and average temperature of the ground 0cm,were analyzed.The results showed that dust storms,blowing sand,dust and other dust weather varied consistently in the inter-annual,seasonal and monthly.The number of days of dust weather occurred most in 1970s,particularly the highest in 1971,and occurred overall decline in volatility from 1971 to 2005.But the number of days of diverse dust weather occurred most are different during the last 30 years,the minimum value was 0 days;increased from 2005 to 2010;the average number of days in 2010 had been closed to 1970s.The dust weather presented a variation tendency:dust storms occur more days during spring and summer and occurred fewer days in autumn and winter;the annual maximum occured in April and the annual minimum occured in January.The occurrence of dust storms had very significant negative correlation with air relative humidity and precipitation wind,showed a very significant positive correlation with speed and presented unconspicuous relationship with varation of temperature. |
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| Keywords: | Korla dust weather occurrence |
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