| 西安市近10年大气稳定度和边界层厚度特征 |
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| 引用本文： | 蔡新玲,吴素良,王繁强,陈建文.西安市近10年大气稳定度和边界层厚度特征[J].气象科技,2007,35(6):814-817. |
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| 作者姓名： | 蔡新玲 吴素良 王繁强 陈建文 |
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| 作者单位： | 陕西省气候中心,西安,710014 |
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| 摘 要： | 利用西安市1996～2005年逐日24个时次的气象资料,运用修正的Pasquill稳定度分类方法和国标GB/T3840-91规定的边界层厚度计算方法计算出逐日逐时次的稳定度等级和边界层厚度,分析了各类稳定度频率和不同稳定度条件下大气边界层厚度的逐年、逐月变化规律。结果表明:西安市大气稳定度出现的频率以稳定类为主。近10年来不稳定类和稳定类有缓慢上升的趋势,中性类有缓慢下降的趋势。稳定类和不稳定类随季节变化非常明显。西安市春季大气边界层厚度最高,夏季次之,冬季最低。
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| 关 键 词： | 西安 大气稳定度 边界层厚度 |
| 收稿时间： | 2007-03-26 |
| 修稿时间： | 2007-05-29 |
Characteristics of Atmospheric Stabilities and ABL Thickness in Recent 10 Years in Xi'an |
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| Cai Xinling,Wu Suliang,Wang Fanqiang and Chen Jianwen.Characteristics of Atmospheric Stabilities and ABL Thickness in Recent 10 Years in Xi'an[J].Meteorological Science and Technology,2007,35(6):814-817. |
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| Authors: | Cai Xinling Wu Suliang Wang Fanqiang and Chen Jianwen |
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| Institution: | Shaanxi Provincial Climate Center, Xi'an 710014;Shaanxi Provincial Climate Center, Xi'an 710014;Shaanxi Provincial Climate Center, Xi'an 710014;Shaanxi Provincial Climate Center, Xi'an 710014 |
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| Abstract: | On the basis of the 24-hour observation in Xi'an from 1996 to 2005,the daily atmospheric stability and ABL(atmospheric boundary layer)thickness are calculated by using the method of correctional Pasquill and according to the national standard GB/T 3840-91.The distribution characteristics of stability and ABL thickness are analyzed month by month and year by year,respectively.The results shows that the wind is the important factor to determine the atmospheric stabilities and ABL thickness. |
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| Keywords: | Xi'an atmospheric stability ABL thickness |
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