Bulk Hook Echo Raindrop Sizes Retrieved Using Mobile, Polarimetric Doppler Radar Observations
Bulk Hook Echo Raindrop Sizes Retrieved Using Mobile, Polarimetric Doppler Radar Observations
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使用移动偏振多普勒雷达观测检索散装钩回波雨滴尺寸
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Louis J. Wicker
中科院分区：
文献类型：
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作者：
Michael M. French;D. Burgess;E. Mansell;Louis J. Wicker
通过NOAA/国家严重风暴实验室移动，X波段，双极化雷达（NOXP）获得的抽象极化雷达观测，用于研究几种龙卷风和非torn型超级电池的“钩回声”降水性能。使用从2009年到2012年获得的NOXP数据估算，包括在龙卷风实验中旋转起源的第二次验证期间（涡旋2）。小雨滴；在有一些小门的那些钩子和几乎没有小滴的人之间混合大门。此外，使用NOXP提供的高空间分辨率数据估计了DSD的空间分布。
AbstractPolarimetric radar observations obtained by the NOAA/National Severe Storms Laboratory mobile, X-band, dual-polarization radar (NOXP) are used to investigate “hook echo” precipitation properties in several tornadic and nontornadic supercells. Hook echo drop size distributions (DSDs) were estimated using NOXP data obtained from 2009 to 2012, including during the second Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX2). Differences between tornadic and nontornadic hook echo DSDs are explored, and comparisons are made with previous observations of estimated hook echo DSDs made from stationary S- and C-band Doppler radars. Tornadic hook echoes consistently contain radar gates that are characterized by small raindrops; nontornadic hook echoes are mixed between those that have some small-drop gates and those that have almost no small-drop gates. In addition, the spatial distribution of DSDs was estimated using the high-spatial-resolution data afforded by NOXP. A unique polarimetr...