甲烷含量对大气结构及暴雨的影响机理研究  

Mechanism Analysis of the Influence of Methane Content on the Atmospheric Structure and Rainstorm

作　　者：吴昊[1,2] 魏鸣 管理[1,2] 史洋 

机构地区：[1]南京信息工程大学/中国气象局气溶胶与云降水重点开放实验室,南京210044 [2]气象灾害预报预警与评估协同创新中心,南京210044 [3]河北省丰宁满族自治县气象局,承德068350

出　　处：《科学技术与工程》2014年第23期153-157,共5页Science Technology and Engineering

基　　金：江苏省高校自然科学重大基础研究项目(10KJA170030);北极阁基金(BJG201208);973项目(2013CB430102);灾害天气国家重点实验室开放课题(2013LASW-B16);863项目(2007AA061901,2012AA091801);公益性行业(气象)科研专项(GYHY201206038,GYHY201306040);水利部公益性行业科研专项(201201063);中国气象局2014年关键技术项目(CMAGJ2014M21)资助

摘　　要：暴雨一直对人类的生产生活造成巨大威胁,但是至今对它的成因及预测一直是世界性的难题。在我国,尤其是四川地区,近年来,暴雨频发。CH4是大气中第二大温室气体,虽然含量低于CO2,但是其在大气中的辐射特性和化学特性至关重要。针对四川地区2013年7月初发生的暴雨事件,主要对Aqua卫星AIRS传感器的观测资料以及降水资料进行分析,发现甲烷含量的变化会造成大气稳定度的变化,并且甲烷含量与暴雨的发生有显著相关性。这一重要结论,不仅在一定程度上解释了四川地区暴雨频发的原因,而且对于深入了解暴雨形成,及时预测暴雨提供了新的方法,有着十分重要的理论意义和重要价值。Rainstorm has been causing a great threat to the production of human life, but so far it has been a worldwide problem of mastering its formation and predicting it. In recent years, in China, especially in the province of Sichuan, the frequency of rainstorm has become more and more. Methane is the second important gase of greenhouse gases, the content of which only follows below CO2, but its radiation characteristics and chemical properties in the atmosphere are very important. In this paper, based on the rainstorm events occurred in Sichuan region in early July 2013; It find that the change of methane content will contribute to the change of atmospheric stability and the formation of rainstorm has a significant contact with methane content by analysing the data acquired from the AIRS sensor on satellite of Aqua and the ground precipitation data. This important conclusion, to some extent, explain the reasons why the rainstorm always nificance and great value on learning the happens in Sichuan province, and also has a very important theoretical sigformation of rainstorm and provided a new approach to forcast rainstorm.

关 键 词：暴雨 CH4 AIRS 

分 类 号：P426.615[天文地球—大气科学及气象学]