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

利用雷达、激光雷达和闪电观测评估山区深层对流的生命周期

• 批准号: 72066299
• 负责人: Dr. Martin Hagen
• 金额: --
• 依托单位: Institut für Physik der Atmosphäre
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/72066299?language=en
• 关键词: Evaluation; life; cycle; deep; convection

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.

深对流的生命周期随大气层结和风廓线的不同而变化。对流细胞可以存活大约30分钟，其他的可以在这段时间内长途旅行10或14个小时。2007年夏季的COPS(对流和地磁诱导降水研究)实地活动提供了一个独特的机会，利用极化多普勒天气雷达、机载激光雷达和现场观测等先进遥感手段详细描述从细胞启动到衰变的生命周期。将利用极化多普勒天气雷达的优点来评估水流星的三维分布和雨滴的尺寸分布的时间演变。根据COPS的目标，将特别强调修改生命周期以及地形对雨滴大小分布的影响。