项目名称: 青藏高原大气热源季节进程和垂直结构的年际变化对中国东部降水的影响及其机理
项目编号: No.41205066
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 大气科学学科
项目作者: 钟珊珊
作者单位: 南京信息工程大学
项目金额: 25万元
中文摘要: 作为地球的第三极,青藏高原的热力状况对东亚乃至全球气候具有重要的影响,其热力结构尤其是垂直结构与大气环流有密切关系。本项目立足于较为可靠的高原实测资料以及最新的卫星遥感资料,拟对大气热源垂直结构的合理性进行验证和判断。在此基础上,分析高原热源的季节进程年际特征及其对中国东部降水的影响;研究高原大气热源垂直结构的年际变化规律;揭示高原大气热源垂直结构的年际变化对大气环流以及中国东部降水影响的差异;利用诊断和数值试验方法,揭示高原大气热源不同类型的垂直结构的加热对中国东部降水影响的机理。项目成果将有助于理解高原热力作用对天气气候的影响,为解释中国东部降水的年际变化机制提供新的途径和依据。
中文关键词: 青藏高原大气热源;垂直结构;季节进程;中国降水;
英文摘要: As the third pole of the Earth, Tibetan Plateau (TP) thermal conditions have a profound impact on the climate of East Asia and even the whole global world,and the vertical structure of heating is closely related with atmospheric circulation. The project, based on the recent reliable experiments of atmospheric sciences over TP and latest satellite remote-sensing data, aims at validating and judging the rationality of the vertical structure of the atmospheric heat source. Based on that, we will analyze interannual characteristics of season proceeding of atmospheric heat source over TP and its relationship with precipitation in Eastern China, reaserch the vertical structure of heat source over TP, reveal the different influence on precipitation in Eastern China due to the different types of vertical heat source structures by Diagnosis and numerical test methods. The project results will help understand the impact of thermal effects of the TP on weather and climate and provide a new approach and basis for the interpretation of mechanism about the interannual variation of the precipitation in Eastern China.
英文关键词: Tibetan Plateau heat source;vertical structure;season proceeding;precipitation in China;