Estimating the electron energy and the strength of the electric field within sprites using ground-based optical data observed over South African storms
Estimating the electron energy and the strength of the electric field within sprites using ground-based optical data observed over South African storms
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使用在南非风暴中观测到的地面光学数据来估计子画面内的电子能量和电场强度
DOI:
10.1016/j.jastp.2021.105760
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发表时间:
2021
影响因子:
1.9
通讯作者:
Nnadih S
中科院分区:
文献类型:
--
作者:
Nnadih S
We present a new simplified method to estimate the characteristic electron energy and electric field within a mesospheric transient luminous event using ground-based calibrated and filtered optical data. We assume non-relativistic motion, a Maxwell-Boltzmann distribution, a model of the electron-neutral collision frequency, elastic electron collisions, that the collisional excitation cross-section can be assigned to a single value, and that each electron-neutral collision produces one photon on average. Example observations of carrot sprites over South Africa give estimated electron energy of 4.6–4.9 ± 0.03 eV, which compares favourably with previous similar results using more sophisticated methods. Ideally, two wavelengths should be observed simultaneously but we show a good estimate is possible with only the bright N2(1 PG) red emission.
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DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
D. Mashao;M. Kosch;J. Bór;Stanislaus Nnadih
通讯作者:
Stanislaus Nnadih
影响因子:
--
作者:
Takahashi;Y.;A.Yoshida;M.Sato;T.Adachi;et al.
通讯作者:
et al.
DOI:
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发表时间:
2015
期刊:
影响因子:
--
作者:
W. Lyons
通讯作者:
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影响因子:
5.2
作者:
Kuo, CL;Hsu, RR;Takahashi, Y
通讯作者:
Takahashi, Y
DOI:
10.1186/1297-9686-40-5-541
发表时间:
2008-09
期刊:
Genetics, selection, evolution : GSE
影响因子:
--
作者:
Ibarra AM;Famula R
通讯作者:
Famula R