NSSC OpenIR
Method for retrieval of atmospheric water vapor using OH airglow for correction of astronomical observations
Alternative TitleWOS:000549961400003;20202908945802
Xu, J. Y.; Liu, W. J.; Bian, J. C.; Liu, X.; Yuan, W.; Wang, C.
Source PublicationASTRONOMY & ASTROPHYSICS
2020
Volume639
DOI10.1051/0004-6361/201834621
ISSN0004-6361
Language英语
Keywordatmospheric effects instrumentation: spectrographs radiative transfer methods: data analysis techniques: spectroscopic TEMPERATURE EMISSION ALTITUDE LINES
AbstractContext. Water vapor in the atmosphere undergoes quick spatial and temporal variations. This has a serious impact on ground-based astronomical observations from the visible band to the infrared band resulting from water vapor attenuation and emission.Aims. We seek to show how the sky spectrum of an astronomical observation can be used to determine the amount of precipitable water vapor (PWV) along the line of sight toward the science target.Methods. In this work, we discuss a method to retrieve the PWV from the OH(8-3) band airglow spectrum. We analyzed the influences of the pressure and temperature of the atmosphere and the different water vapor vertical distributions on the PWV retrieval method in detail. Meanwhile, the accuracy of the method was analyzed via Monte Carlo simulations. To further verify the method of PWV retrieval, we carried out cross comparisons between the PWV retrieved from OH airglow and PWV from the standard star spectra of UVES using equivalent widths of telluric absorption lines observed from 2000 to 2016 at Cerro Paranal in Chile.Results. The Monte Carlo tests and the comparison between the two different methods prove the availability the PWV retrieval method from OH airglow. These results show that using OH airglow spectra in astronomical observations, PWVs along the same line of sight as the astronomical observations can be retrieved in real time.Conclusions. We provide a quick and economical method for retrieving the water vapor along the same line of sight of astronomical observation in the real time. This is especially helpful to correcting the effect of water vapor on astronomical observations.
Indexed BySCI ; EI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7688
Collection中国科学院国家空间科学中心
Affiliation1.[Xu, J. Y.
2.Liu, W. J.
3.Liu, X.
4.Yuan, W.
5.Wang, C.] Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China
6.[Bian, J. C.] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China
7.[Xu, J. Y.
8.Wang, C.] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
9.[Liu, X.] Henan Normal Univ, Coll Math & Informat Sci, Xinxiang 453007, Henan, Peoples R China
Recommended Citation
GB/T 7714
Xu, J. Y.,Liu, W. J.,Bian, J. C.,et al. Method for retrieval of atmospheric water vapor using OH airglow for correction of astronomical observations[J]. ASTRONOMY & ASTROPHYSICS,2020,639.
APA Xu, J. Y.,Liu, W. J.,Bian, J. C.,Liu, X.,Yuan, W.,&Wang, C..(2020).Method for retrieval of atmospheric water vapor using OH airglow for correction of astronomical observations.ASTRONOMY & ASTROPHYSICS,639.
MLA Xu, J. Y.,et al."Method for retrieval of atmospheric water vapor using OH airglow for correction of astronomical observations".ASTRONOMY & ASTROPHYSICS 639(2020).
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