Coordination Funds

优先方案SPP 2115“偏振雷达观测满足大气建模”是一项协调努力，通过利用偏振雷达观测的信息内容，挑战和改进大气模型中云和降水过程的表示。在PROM中，雷达偏振测量、大气建模和数据同化方面的专家共同努力，促进和加速观测和大气建模的融合。第一个供资阶段致力于尽可能全面地利用和了解全国范围的偏振雷达观测，并辅之以超级站点现有的最先进的测量设备和技术。建模人员第一次掌握了与三维微观物理学相关的观测数据，以改进参数化。此外，第一阶段开发了新的微物理反演伴随着不确定性，并开始利用它们进行模型评估和雷达信息参数化。一些开发的工具仍然需要改进，例如，雷达观测操作员需要一个接口，以散射数据库与更现实的冰雪粒子的表示。在第二阶段，更多的项目将利用为改进参数化和同化偏振信息而开发的观测见解和工具;因此，现在可以更加积极地实现雷达偏振测量和大气建模的融合。

The priority programme SPP2115 „Polarimetric Radar Observations meet Atmospheric Modelling (PROM)“ is a coordinated effort to challenge and improve the representation of cloud and precipitation processes in atmospheric models by exploiting the information content of polarimetric radar observations. In PROM experts in radar polarimetry, atmospheric modelling, and data assimilation work together to facilitate and accelerate the fusion of observations and atmospheric modelling. The first funding phase engaged in an as complete as possible exploitation and understanding of nation-wide polarimetric radar observations complemented by state-of-the-art measurement devices and techniques available at supersites. For the first time, modellers hold three-dimensional microphysics-related observational data in their hands to improve parameterisations. In addition, Phase 1 developed new microphysical retrievals accompanied by uncertainties and started their exploitation for model evaluation and radar-informed parameterizations. Some tools developed still require refinements, e.g. the radar observation operator requires an interface to a scattering data base with more realistic representations of ice and snow particles. In Phase 2 more projects will exploit the observational insights and tools developed with the goal to improve parameterizations and assimilate polarimetric information; thus the fusion of radar polarimetry and atmospheric modelling can now be approached even more aggressively.