The Polarization Lidar Technique for Cloud Research: A Review and Current Assessment
The Polarization Lidar Technique for Cloud Research: A Review and Current Assessment
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DOI：
10.1175/1520-0477(1991)072
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发表时间：
1991-12
影响因子：
8
通讯作者：
K. Sassen
中科院分区：
文献类型：
--
作者：
K. Sassen
摘要回顾了近二十年来偏振激光雷达领域的发展，并对当前的云研究能力和局限性进行了评价。依靠控制偏振激光与形状各异的比重计相互作用的基本散射原理，这种遥感技术有助于我们了解各种云类型的组成和结构。例如，偏振激光雷达是当前表征卷云特性的气候研究项目的关键组成部分，也是混合相云系统（如冬季山地风暴）的多种遥感研究的组成部分。虽然明确的云相识别和一些冰粒类型和方向的识别已经被证明是有能力的，但最近涉及冰晶射线追踪和云微物理模型模拟的理论方法，有望增加该技术的实用性。模拟…的新结果
Abstract The development of the polarization lidar field over the past two decades is reviewed, and the current cloud-research capabilities and limitations are evaluated. Relying on fundamental scattering principles governing the interaction of polarized laser light with distinctly shaped hydrometers, this remote-sensing technique has contributed to our knowledge of the composition and structure of a variety of cloud types. For example, polarization lidar is a key component of current climate-research programs to characterize the properties of cirrus clouds, and is an integral part of multiple remote-sensor studies of mixed-phase cloud systems, such as winter mountain storms. Although unambiguous cloud-phase discrimination and the identification of some ice particle types and orientations are demonstrated capabilities, recent theoretical approaches involving ice crystal ray-tracing and cloud microphysical model simulations are, promising to increase the utility of the technique. New results simulating the...