廬山層狀云和對(duì)流云雨滴譜比較分析

doi:10.3969/2013jms.0005

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廬山層狀云和對(duì)流云雨滴譜比較分析
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                        10.3969/2013jms.0005
                    
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基金項(xiàng)目:國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃（973計(jì)劃）項(xiàng)目（2010CD950804）

Comparative analysis on raindrop spectra of stratiform and convective cloud in Lushan

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本文從廬山近3 a的雨滴譜觀測(cè)資料中選取數(shù)例層狀云降水和對(duì)流云降水個(gè)例，通過(guò)對(duì)兩類云降水的平均雨滴譜分析擬合、各微物理量演變以及速度譜的對(duì)比研究，得出以下結(jié)論：廬山對(duì)流云降水的平均雨滴譜很寬，有直徑大于10 mm的大雨滴出現(xiàn)。Γ分布，對(duì)層狀云降水?dāng)M合，較MP分布差，而對(duì)對(duì)流云降水?dāng)M合，較MP分布好。兩類云降水的雨強(qiáng)變化都是由最大雨滴直徑和粒子數(shù)濃度共同決定的，但對(duì)于對(duì)流云降水，最大雨滴直徑的決定作用更為重要。雨滴直徑較小時(shí)，兩類云降水的實(shí)測(cè)速度大于經(jīng)驗(yàn)公式值；而雨滴直徑較大時(shí)，實(shí)測(cè)速度值分布在經(jīng)驗(yàn)公式曲線兩側(cè)，但對(duì)流云降水的分布偏差要大于層狀云降水。

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Some cases of stratiform and convective cloud precipitation were selected from observation data of raindrop spectrum in Lushan in recent three years to comparatively investigate the fitting of average raindrop size distribution of two types of cloud precipitation, the evolution of various microphysical parameters and velocity spectrum. The results show that the average raindrop size distribution of convective cloud precipitation in Lushan has wider breadth, even existing larger raindrop wider than 10 mm. Gamma distribution performed poorer than MP distribution for stratiform cloud precipitation, while for convective cloud precipitation, it is better. The rainfall intensity fluctuation of two types of cloud precipitation depends on both the the maximum raindrop diameter and particle number concentration, but for convective cloud precipitation, maximum raindrop diameter is more important. In the case of smaller raindrop diameter, the measured velocity of two types of cloud often exceeds the experienced values, but when raindrop diameter goes up, it distributes on both left and right sides of the experienced formula curve, while the distribution deviation of convective cloud precipitation is more significant than that of stratiform.

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張歡,濮江平,胡子浩,張小鵬,王一琛.廬山層狀云和對(duì)流云雨滴譜比較分析.氣象科學(xué),2014,34(5):483-490 ZHANG Huan, PU Jiangping, HU Zihao, ZHANG Xiaopeng, WANG Yichen. Comparative analysis on raindrop spectra of stratiform and convective cloud in Lushan. Journal of the Meteorological Sciences,2014,34(5):483-490

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收稿日期:2012-12-01
最后修改日期:2013-01-11
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在線發(fā)布日期: 2014-10-15
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抽查舔水白紧大视频,冲喜娘子超甜哒激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说