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  • 软件名称:甲烷柱变化影响大气结构及局地强降水的机理研究
  • 软件大小: 0.00 B
  • 软件评级: ★★★
  • 开 发 商: 朱家杉,魏鸣
  • 软件来源: 《遥感技术与应用》
  • 解压密码:www.gissky.net

资源简介

摘要: 为研究大气甲烷含量变化与局地强对流天气的关系,利用Aqua卫星上AIRS传感器反演的L3甲烷日产品,对甲烷含量与大气结构及局地强降水的关系进行研究。结果表明,大气甲烷柱总量分布受地形及地势影响较强,在复杂地形区,甲烷含量波动较大,并与降水量呈现相配合的反相关性。甲烷所具有的辐射和化学活性可影响地气辐射,改变大气温度垂直分布,影响大气物理结构,增加大气不稳定度,其浓度变化可作为强降水发生的先兆信息。结合多源气象资料,分析大气动力、热力和水汽条件,能够为分析局地强降水天气的影响机理提供新的视角和参考依据。 关键词: AIRS;  甲烷柱总量;  大气结构;  强对流     Abstract: In order to study the relationship between atmospheric methane content and local strong convective weather,relationships among the methane content and the atmospheric structure and the local heavy precipitation are studied by using the L3 methane daily inversion product retrieved by AIRS.The results show that the distribution of total methane column content in atmosphere is strongly affected by the topography and terrain,and the methane content fluctuates in the complex topography area,which has a good inverse correlation with the precipitation.Methane has radiation and chemical activity which can affect the ground gas radiation,change the vertical distribution of atmospheric temperature,and increase the atmospheric instability.The change of methane column could be used as a precursor to the occurrence of heavy rainfall.It can provide the new view and a reference for exploring the mechanism of local heavy rain combined with multi\|source meteorological data,analysis of atmospheric power,heat,water vapor conditions.

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