| 克拉玛依高温日数的气候特征及持续高温过程环流型分析 |
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| 引用本文： | 孙东霞,杨建成.克拉玛依高温日数的气候特征及持续高温过程环流型分析[J].新疆气象,2010,4(1):12-15. |
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| 作者姓名： | 孙东霞 杨建成 |
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| 作者单位： | 克拉玛依市气象局,新疆,克拉玛依834000 |
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| 基金项目： | 克托玛依市科技局指导性科技计划项目 |
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| 摘 要： | 利用1961-2008年克拉玛依气象站日最高气温资料和NCEP高度场资料,分析克拉玛依高温的气候特征和环流背景.结果表明:克拉玛依高温日年平均为28.4 d,各年日数变化波动很大,最多年份达49 d,最少年份为11 d.持续高温过程年平均4.3次.高温日、持续高温过程主要集中在6-8月.20世纪90年代中期至今高温天气的频次明显增多且强度增强.研究显示,克拉玛依持续高温天气的发生与伊朗高压东北上及西太平洋副高西伸北抬有密切关系.持续高温天气过程500 hPa高度场主要表现为三种环流类型:北支锋区偏北型环流,多产生持续时间较长的高温天气过程.二槽二脊型,多产生极端最高气温大于40℃的持续高温天气过程.二槽一脊型环流,高温天气持续时间较短.
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| 关 键 词： | 克拉玛依 高温 气候特征 hPa环流型 |
Climatic Characteristics of Megatemperature Days and Circulation of the Continuous High Temperature Process in Kelamayi |
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| SUN Dong-xia,YANG Jian-cheng.Climatic Characteristics of Megatemperature Days and Circulation of the Continuous High Temperature Process in Kelamayi[J].Bimonthly of Xinjiang Meteorology,2010,4(1):12-15. |
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| Authors: | SUN Dong-xia YANG Jian-cheng |
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| Institution: | SUN Dong-xia,YANG Jian-cheng (Kelamayi Meteorological Bureau,Kelamayi 834000,China) |
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| Abstract: | The climatic characteristics of high temperature and the background of large -scale atmospheric circulation in Kelamayi were analyzed by the use of the data of the daily highest temperature during 1961-2008 from kelamayi weather station,and the height field grid data from NCEP. The results showed that: the mean annual magatemperature days were 28.4. Magatemperature days fluctuated greatly from year to year, and the maximum was 49, the minimum was only 11. The continuous mgatemperature process is 4.3 times p... |
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| Keywords: | 500 |
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