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Alternative TitleEmissive spectral calculation of middle lightning caused by thunderstorm cloud quasi-electrostatic(QE)field
江芳; 黄朝艳; 张华龙; 王咏梅
Source Publication地球物理学进展
Keyword准静电场 电子能量分布 激发率 辐射强度
Other AbstractThe middle lightning phenomena is a key topic in the middle and upper atmosphere.In this dissertation,its emissive spectral is studied by numerical simulation.On the base of the quasi-electrostatic(QE)field excitating mechanism,the quasielectrostatic field distribution with height caused by a sudden discharge of thunderstorm cloud is calculated by single point charge model.The reduced E-field(E/N,where E is the quasielectrostatic field intensity and N is the neutral density)is inputted into the Boltzmann equation function for the electron energy distribution with time in a mixture of partially ionized gases.The excitation rate corresponding to the collisional process as a function of reduced E-field is calculated.On the base of the calculations the volume emissive rate for each emissive band is calculated,then the volume emissive rate is inputted into the atmophere radiative transfer function to obtain the radiative intensity with wavelength.Example for the excitation calculated when E/N=200Td,the radiative intensity produced thousands of rayleighs.The spectral distribution is relative to the atmospheric composition and dectection path.
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Document Type期刊论文
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GB/T 7714
江芳,黄朝艳,张华龙,等. 雷暴云准静电场引发的中层闪电辐射光谱计算研究[J]. 地球物理学进展,2015,30(4):1492-1500.
APA 江芳,黄朝艳,张华龙,&王咏梅.(2015).雷暴云准静电场引发的中层闪电辐射光谱计算研究.地球物理学进展,30(4),1492-1500.
MLA 江芳,et al."雷暴云准静电场引发的中层闪电辐射光谱计算研究".地球物理学进展 30.4(2015):1492-1500.
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