Evaluation of the life cycle of deep convection over mountainous terrain using radar, lidar and lightning observations

深层对流的生命周期随大气分层和风廓线的变化而变化。对流细胞可以存活约30分钟，其他的可以存活10或14小时，在这段时间内进行长距离移动。2007年夏季的cop（对流和地形诱导降水研究）野外活动提供了一个独特的机会，可以使用先进的遥感技术，如偏振多普勒天气雷达、机载激光雷达和现场观测，详细描述从细胞形成到衰变的生命周期。利用偏振多普勒天气雷达的优势，我们将评估水成物的三维分布和雨滴的大小分布的时间演变。按照气候变化监测系统的目标，将特别强调根据地形改变生命周期和雨滴大小分布。

The life cycle of deep convection is variable depending on the atmospheric stratification and the wind profile. Convective cells can live about 30 minutes, other live 10 or 14 hours travelling long distances during that time. The COPS (Convective and Orographically-induced Precipitation Study) field campaign during summer 2007 provides an unique occasion to use advanced remote sensing like polarimetric Doppler weather radar, airborne lidar, and in-situ observations to describe the life cycle in detail from initiation of a cell to the decay. The advantages of a polarimetric Doppler weather radar will be used to evaluate the temporal evolution of the 3-dimensional distribution of hydrometeors and of the size distribution of rain drops. Following the objectives of COPS special emphasis will be put on the modification of the life cycle as well as the raindrop size distribution by orography.