NSSC OpenIR
Investigation of Transmission Characteristic of O+ 83. 4 nm Dayglow in the Ionosphere
Alternative TitleWOS:000539411900002;20202308785206;电离层O~+83.4nm日辉辐射传输特性研究
Wang Da-xin; Fu Li-ping; Jiang Fang; Jia Nan10,13; Dou Shuang-Tuan
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
2020
Volume40Issue:5Pages:1334-1339
DOI10.3964/j.issn.1000-0593(2020)05-1334-06
ISSN1000-0593
Language中文
KeywordO+ 83. 4 nm Dayglow Radiative transfer Ionosphere DAYTIME IONOSPHERE RETRIEVAL
AbstractExtreme Ultraviolet (10 similar to 100 nm) dayglow emission is produced primarily by photoionization excitation and photoelectron impact ionization. Observing extreme ultraviolet dayglow by using space-based remote sensing, we can obtain the information of electron density, ion density and spatial distribution of ionospheric F layer in the daytime. The EUV dayglow remote sensing technology started earlier in foreign countries, especially in Europe, America, Japan and other countries, and have come to maturity now. However, there are very few studies on EUV dayglow remote sensing in China, and the detection of ionosphere is mainly at night. For example, the ionospheric photometer loaded on the D-Star of the FengYun-3 meteorological satellite launched by China in 2017 can obtain the nighttime ionospheric peak electron density. Remote sensing in extreme ultraviolet (EUV) emission, especially the detection of the radiation characteristics of O+ ion 83. 4 nm in the ionosphere, is an important means to obtain daytime ionospheric radiation characteristics, and is also the research hotspot of ionospheric optical remote sensing in the world. Firstly, we have studied the main radiative transfer theory of EUV dayglow in this paper, and introduces the excitation process, impact ionization process and multiple resonant scattering process. On this basis, we focus on the generation mechanism and radiation transmission characteristics of 83. 4 nm dayglow. O+ 83. 4 nm dayglow is generated by photoionization of the O atoms in the low thermosphere by solar EUV and is the brightest emission in EUV. The altitude distribution of the 83. 4 nm dayglow can provide some information about the density profile of the O+ ions, and by charge neutrality, the electron density, which provide an effective method for ionospheric detection in the daytime. Secondly, we have analyzed the band characteristics of 83. 4 nm dayglow. Based on the Mass Spectrometer Incoherent Scatter (MSIS-00) model, we calculate the initial volume emission rates, the volume emission rates under resonant scattering and limb column emission intensity of 83. 4 nm dayglow emission by using the AURIC vl. 2 model, and then we analyze the correlation with altitude, latitude, solar activity index, geomagnetic activity index and so on. Based on the extreme ultraviolet radiation algorithm, and the particularity of the radiation transmission at O+ ion 83. 4 nm, considering the multiple scattering effects of the radiation, the radiation calculation method of oxygen ion 83. 4 nm dayglow is proposed. Assuming that the ionosphere is electrical neutrality, the O+ density of the ionosphere in the daytime can be inverted by obtaining the EUV dayglow intensity of oxygen ion 83. 4 nm, and then we can obtain the electron density distribution of the ionosphere F layer in the daytime, providing an important basis for studying the radiation transmission characteristics of the daytime ionosphere.
Indexed BySCI ; EI ; CSCD
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7739
Collection中国科学院国家空间科学中心
Affiliation1.[Wang Da-xin
2.Fu Li-ping
3.Jiang Fang
4.Jia Nan
5.Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China
6.[Wang Da-xin
7.Jia Nan
8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
9.[Fu Li-ping
10.Jiang Fang
11.Beijing Key Lab Space Environm Explorat, Beijing 100190, Peoples R China
12.[Fu Li-ping
13.Jiang Fang
14.Key Lab Environm Space Situat Awareness Technol, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang Da-xin,Fu Li-ping,Jiang Fang,et al. Investigation of Transmission Characteristic of O+ 83. 4 nm Dayglow in the Ionosphere[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2020,40(5):1334-1339.
APA Wang Da-xin,Fu Li-ping,Jiang Fang,Jia Nan,&Dou Shuang-Tuan.(2020).Investigation of Transmission Characteristic of O+ 83. 4 nm Dayglow in the Ionosphere.SPECTROSCOPY AND SPECTRAL ANALYSIS,40(5),1334-1339.
MLA Wang Da-xin,et al."Investigation of Transmission Characteristic of O+ 83. 4 nm Dayglow in the Ionosphere".SPECTROSCOPY AND SPECTRAL ANALYSIS 40.5(2020):1334-1339.
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