Construction and exploitation of a new-generation multi-frequency polarized scanning ground-based instrument capable of estimatin g cloud and rain water liquid path

必须对全天候条件下的云液态水含量进行可靠的长期监测，并将总液态水含量划分为云和雨水，以评估云解析大气模式的性能，包括在中尺度上执行的最新一代天气预报模式，并验证基于卫星图像技术的云水估计。为此，我们建议设计、构造、操作和开发一种新的双极化三通道无源地面微波(以下简称MW 1)辐射计。在波恩[22通道被动微波辐射计(PMWR)MICCY、X波段降水雷达、微雨雷达、Ceileter]、Cabauw(3 GHz和37 GHz云雷达)以及DFG-SPP1167的现场COPS(包括云雷达和扫描水汽激光雷达等)的其他几台地面遥感仪器的协同工作中，该辐射计还将提供有关云微物理参数的垂直剖面的前所未有的定量信息。精心选择的设置将首次允许对野外辐射传输中的3D效果进行定量评估。

Reliable long term monitoring of cloud liquid water content under all-weather conditions and the partitioning of total liquid water content into cloud and rain water is mandatory to evaluate the performance of cloud resolving atmospheric models including the newest generation weather forecast models performing in the meso- -scale, and to validate cloud water estimates based on satellite imagery techniques. To this purpose we propose to design, construct, operate, and exploit the data of 1 a novel dual-polarisation three-channel passive ground-based microwave (MW hereafter1) radiometer setup. Run in synergy with several other ground-based remote sensing instruments at Bonn [22 channel passive microwave radiometer (PMWR) MICCY, X-Band precipitation radar, Micro Rain Radar, Ceilometer], Cabauw (3 and 37 GHz cloud radar), and during the field campaign COPS of the DFG-SPP1167 (including among others cloud radars and scanning water vapour lidar), the radiometer will in addition provide unprecedented quantitative information about vertical profiles of cloud microphysical parameters even in raining clouds. Carefully chosen setups will allow for the first time a quantitative evaluation of 3D-effects in radiative transfer in the field.