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

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，对于评估云解析大气模式（包括最新一代中尺度天气预报模式）的性能，以及验证基于卫星图像技术的云水估计是必要的。为此，我们建议设计、建造、操作和利用一种新型双极化三通道无源地基微波辐射计装置的数据。与波恩[22通道无源微波辐射计（PMWR） MICCY， x波段降水雷达，微雨雷达，Ceilometer], Cabauw（3和37 GHz云雷达）以及DFG-SPP1167的cop（包括其他云雷达和扫描水蒸气激光雷达）的其他几个地面遥感仪器协同运行。此外，辐射计还将提供前所未有的关于云微物理参数垂直剖面的定量信息，即使在雨云中也是如此。精心选择的装置将首次允许对现场辐射传输中的3d效应进行定量评估。

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.