一次MCS過(guò)程的特征分析

doi:10.3969/2012jms.0096

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一次MCS過(guò)程的特征分析
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                        10.3969/2012jms.0096
                    
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基金項(xiàng)目:江蘇省科技廳社會(huì)發(fā)展項(xiàng)目(BS2007088)

Characteristic analysis on a MCS process

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對(duì)2010年9月7—8日江蘇北部的中尺度對(duì)流系統(tǒng)(MCS)特征和暴雨過(guò)程進(jìn)行了分析,應(yīng)用衛(wèi)星云圖、熱力和動(dòng)力物理量診斷。結(jié)果表明:MCS是由若干個(gè)α和β中尺度對(duì)流云團(tuán)組成,在MCS成熟階段有一個(gè)逐漸發(fā)展成中尺度對(duì)流復(fù)合體(MCC)的過(guò)程;MCS出現(xiàn)在高溫高濕對(duì)流不穩(wěn)定的環(huán)境中,低層低渦的輻合和鋒面的抬升作用為其提供了動(dòng)力條件;強(qiáng)水中心與MCS云頂溫度梯度最大值中心相對(duì)應(yīng),為暴雨落區(qū)預(yù)報(bào)提供了著眼點(diǎn)。

Abstract:

Using physical quantity diagnostic analysis, this paper analyzes, a MCS and the rainstorm process occurred on 7 and 8 September 2010 in the north of Jiangsu province and explores the characteristics of MCS as well as the relationship between the MCS and rainstorm process. The results show that the MCS was composed of several meso-β-scale and meso-α-scale convection clusters: in the mature stage of MCS, there was a gradual development towards the process of mesoscale convective complexes(MCC). MCS occurred in the environment with high temperature, considerably wetness and unsteady convective stratification in the air. Surface cyclone development in cooperation with the convergence and the role of the front of the uplift had provided dynamic conditions for MCS. It is also indicated that the precipitation centre corresponded with the maximum gradient of the cloud top temperature very well, so that it can provide reference for the forecast of downpour weather and its area.

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劉佳穎,魏建蘇,姚麗娜,徐迎春.一次MCS過(guò)程的特征分析.氣象科學(xué),2013,33(1):89-94 LIU Jiaying, WEI Jiansu, YAO Lina, XU Yingchun. Characteristic analysis on a MCS process. Journal of the Meteorological Sciences,2013,33(1):89-94

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收稿日期:2011-07-06
最后修改日期:2012-02-09
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在線發(fā)布日期: 2013-03-06
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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