n fŻÈwêU n ÈwçtÁÊuï ú: 2010N216ú(Î) 13:30 - 15:00 ê: sċww1Ù 566ş èÚ: he Convective and Orographically-induced Precipitation Study: A Research and Development Project of the World Weather Program* uÒ: Prof. Volker Wulfmeyer (Institute of Physics and Meteorology (IPM), University of Hohenheim, Stuttgart, Germany) uv|: The Convective and Orographically-induced Precipitation Study (COPS) is an international field effort addressing one of the most important challenges in atmospheric sciences: Understanding the process chain leading to the development and organization of precipitation in low-mountain regions and improvement of the predictive skill of quantitative precipitation forecasting (QPF). COPS was endorsed as Research and Development Project (RDP) of the World Weather Research Program (WWRP) and coordinated with a variety of other research activities such as the WWRP Forecast Demonstration Project (FDP) D-PHASE and the first summertime THORPEX European Regional Campaign (ETReC07). The field phase was performed in southwestern Germany / eastern France during June - August 2007. A unique combination of sensors was set up and successfully operated. Particular highlights were the operation of 2 Doppler-on-Wheels in synergy with a variety of passive and active remote sensing systems, the Atmospheric Radiation Measurement (ARM) program Mobile Facility (AMF), 9 airborne platforms employing active remote sensing systems such as Doppler and water-vapor lidar, and the performance of the Meteosat Second Generation Rapid Scan Service. It is demonstrated that the COPS data set provides a treasure chest for atmospheric sciences, which can be characterized by four features: 1. Area-wide and synergetic observations of networks and supersites. 2. High-resolution, 4-dimensional data set provided by ground-based scanning and airborne instrumentation. 3. High-end data set for data assimilation studies. 4. Coordination with D-PHASE ensemble forecasts for advanced process and predictability studies. First results of process and model evaluation studies as well as of data assimilation studies will be presented and discussed. â˘íıĉ: ˘şYF