青藏高原东缘对流云和水汽观测试验简介

Introduction to Observation Experiment for Convective Cloud and Water Vapor in East Edge of the Tibetan Plateau

近年来,青藏高原及周边省区(西藏、青海、四川、云南等)的气象业务观测系统建设取得很大成效,并通过JICA项目国际合作计划的实施,在高原及其东缘区域初步组成了具有国际先进水平的综合气象监测系统。基于以往研究成果和青藏高原及其周边地区观测条件的改善,加上中国气象科学研究院灾害天气国家重点实验室观测能力的提高,青藏高原东缘对流云和水汽观测试验得以实施,此次试验将重点关注这一区域对流云结构和水汽输送的变化及其对灾害性天气的可能影响,并将争取改进数值模式中高原及周边区域的云物理过程参数化方案,提升数值模式的预报能力。

In recent years, the operational meteorological observing system in the Tibetan Plateau （TP） and its ambient areas hasbeen improved by using advanced equipment and adding new sites. Furthermore, a new integrated observing system in TP andits ambient areas （NIOST） was built by implementing the international cooperation project funded by JICA （Japan InternationalCooperation Agency）. Based on previous research results and improvement of observing condition in TP and its ambient areas, aswell as the enhancement of observing ability of State Key Laboratory of Severe Weather （LASW）, the observation experiment toconvective cloud and water vapor in the east edge of TP （ETP） could be conducted. This experiment chiefly focuses on the variationsof convective cloud and water vapor transportation in ETP, and deals with their impossible impacts on disastrous weather. To enhancethe forecasting capability of numerical model, we will study the contributing factor of severe weather and multi-scale feature of watercycle in ETP, and then improve the parameterized scheme of cloud physical process in TP and its ambient areas.