Characterization of Initiation and Growth of Selected Severe Convective Storms over Central Europe with MSG-SEVIRI
Characterization of Initiation and Growth of Selected Severe Convective Storms over Central Europe with MSG-SEVIRI
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使用 MSG-SEVIRI 描述中欧上空选定的强对流风暴的起始和发展特征
DOI：
10.1175/jamc-d-14-0144.1
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发表时间：
2015
影响因子：
3
通讯作者：
Deneke
中科院分区：
文献类型：
--
作者：
Dietzsch;Hünerbein A. ;Deneke
根据2012年的9个案例，对中欧上空强对流风暴的早期发展进行了研究。利用地球静止气象卫星第二代卫星上的旋转增强型可见光和红外成像仪成像辐射计的数据，对正在形成的风暴的动力学和微物理特性进行了监测和综合。根据风暴路径，研究了几种基于卫星的风暴特性，例如云顶温度、云顶冷却率和云粒子有效半径。还介绍了一个用于量化跟踪误差引起的沿航迹特性不确定性的框架。大多数研究的风暴表现出明显的最大云顶冷却率，相应的时间被用于跟踪同步。云的生长阶段分为最大冷却之前的初始上升气流加强期和之后的持续增长期。初始上升气流加强期是可变的，强烈地依赖于对流的启动机制和检测条件。持续增长期更局限，持续30和45分钟之间。砧的大小和由此产生的平均砧边缘速度的变化，确定从红外卫星图像。作为质量输送的结果，砧边缘速度显示其最高的相关性与云顶垂直速度约20-30分钟后，在云顶冷却速率的最大值。垂直生长较慢的云观察到较大的冰晶有效半径。云顶垂直速度与云顶有效半径的相关关系在云顶冷却最大值出现后20 min出现最大值。
The early development of severe convective storms over central Europe was investigated on the basis of nine cases from 2012. Using data from the Spinning Enhanced Visible and Infrared Imager (SEVIRI) imaging radiometer aboard a geostationary Meteosat Second Generation (MSG) satellite, dynamical and microphysical properties of developing storms were monitored and combined. Several satellite-based storm properties, for example, cloud-top temperature, cloud-top cooling rate, and cloud particle effective radius, were investigated following the storm tracks. A framework for quantification of uncertainties of along-track properties resulting from tracking errors was also introduced. The majority of studied storms show a distinct maximum in cloud-top cooling rate; the corresponding time was used for track synchronization. The cloud growth phase was divided into an initial updraft intensification period before the maximum cooling and a continued growth period afterward. The initial updraft intensification period is variable and strongly depends on the convection initiation mechanism and detection conditions. The continued growth period is more confined, lasting between 30 and 45 min. The change in anvil size and the resulting average anvil edge velocity were determined from infrared satellite images. As a consequence of mass transport, the anvil edge velocity shows its highest correlation with the cloud-top vertical velocity approximately 20–30 min after the maximum in the cloud-top cooling rate. Larger effective radii of ice crystals were observed for vertically slower-growing clouds. The largest anticorrelation between cloud-top vertical velocity and effective radius was found at a time lag of 20 min after the maximum in cloud-top cooling.
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DOI：
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发表时间：
2002
期刊：
--
影响因子：
--
作者：
J. Craven;H. Brooks;J. Hart
通讯作者：
J. Craven;H. Brooks;J. Hart
影响因子：
2.7
作者：
C. Siewert;M. Koenig;J. Mecikalski
通讯作者：
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DOI：
--
发表时间：
1986
期刊：
影响因子：
--
作者：
R. Adler;R. Mack
通讯作者：
R. Mack
利用卫星衍生的云特性来量化卷云下不断增长的积云
DOI：
--
发表时间：
2013
期刊：
影响因子：
--
作者：
J. Mecikalski;P. Minnis;R. Palikonda
通讯作者：
R. Palikonda
不同天气条件下中欧雷暴发生及特征
DOI：
--
发表时间：
2015
期刊：
影响因子：
--
作者：
K. Wapler;Paul James
通讯作者：
Paul James