Inverting OII 83.4 nm dayglow profiles using Markov chain radiative transfer
Inverting OII 83.4 nm dayglow profiles using Markov chain radiative transfer
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使用马尔可夫链辐射传输反转 OII 83.4 nm 日光轮廓
DOI：
10.1002/2016ja023168
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
S. Chakrabarti
中科院分区：
文献类型：
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作者：
G. Geddes;Ewan S Douglas;S. C. Finn;T. Cook;S. Chakrabarti
共振散射oi83.4 nm三重态的发射谱图原则上可用于估算电离层F2区的O+密度谱。给定发射源剖面，求解这个反问题是可能的，但需要大量的计算。传统的辐射传递问题的傅里叶解需要多次迭代才能收敛，计算耗时。该问题的马尔可夫链方法通过直接构造一个矩阵，将源发射率映射到包含所有阶散射的有效发射率，从而产生类似的结果。这里提出的马尔可夫链方法产生更快的结果，因此可以用于以更高的分辨率执行O+密度检索。
Emission profiles of the resonantly scattered OII 83.4 nm triplet can in principle be used to estimate O+ density profiles in the F2 region of the ionosphere. Given the emission source profile, solution of this inverse problem is possible but requires significant computation. The traditional Feautrier solution to the radiative transfer problem requires many iterations to converge, making it time consuming to compute. A Markov chain approach to the problem produces similar results by directly constructing a matrix that maps the source emission rate to an effective emission rate which includes scattering to all orders. The Markov chain approach presented here yields faster results and therefore can be used to perform the O+ density retrieval with higher resolution than would otherwise be possible.