Structures of Bragg Scatter Observed with the Polarimetric WSR-88D

Structures of Bragg Scatter Observed with the Polarimetric WSR-88D
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使用偏振 WSR-88D 观察布拉格散射的结构

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发表时间：
2013
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通讯作者：
D. Stensrud
D. Stensrud
中科院分区：
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文献类型：
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作者：
V. Melnikov;R. Doviak;D. Zrnic;D. Stensrud

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摘要：增强双极化天气监视雷达 1988 多普勒 (WSR-88D) 的信号处理和数据收集，以提高其探测能力，从而对布拉格散射体的“精细”结构进行观测。讨论了在边界层中和上方观察到的几种精细结构。这些布拉格散射结构包括对流边界层的顶部、非降水云、边界层上方的强对流羽流以及与衰减边界层湍流相关的弱反射层。得出的结论是，偏振 WSR-88D 的数据可用于获取对流边界层的深度。
AbstractEnhancements to signal processing and data collection in the dual-polarization Weather Surveillance Radar-1988 Doppler (WSR-88D) to increase its detection capability yield observations of “fine” structures from Bragg scatterers. Several types of the fine structures observed in and above the boundary layer are discussed. These Bragg scatter structures include the top of the convective boundary layer, nonprecipitating clouds, strong convective plumes above the boundary layer, and a layer of weak reflections associated with decaying boundary layer turbulence. A conclusion that data from polarimetric WSR-88Ds can be used to obtain the depth of the convective boundary layer is made.