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DOI	10.5194/acp-21-14927-2021
	Scattering and absorption cross sections of atmospheric gases in the ultraviolet-visible wavelength range (307-725nm)
	He Q.; Fang Z.; Shoshanim O.; Brown S.S.; Rudich Y.
发表日期	2021
ISSN	1680-7316
起始页码	14927
结束页码	14940
卷号	21 期号:19
英文摘要	Accurate Rayleigh scattering and absorption cross sections of atmospheric gases are essential for understanding the propagation of electromagnetic radiation in planetary atmospheres. Accurate extinction cross sections are also essential for calibrating high-finesse optical cavities and differential optical absorption spectroscopy and for accurate remote sensing. In this study, we measured the scattering and absorption cross sections of carbon dioxide, nitrous oxide, sulfur hexafluoride, oxygen, and methane in the continuous wavelength range of 307-725nm using broadband cavity-enhanced spectroscopy (BBCES). The experimentally derived Rayleigh scattering cross sections for CO2, N2O, SF6, O2, and CH4 agree with refractive index-based calculations, with a difference of (0.4±1.2)%, (-0.6±1.1)%, (0.9±1.4)%, (2.8±1.2)%, and (0.9±2.2)%, respectively. The O2-O2 collision-induced absorption and absorption by methane are obtained with high precision at the 0.8nm resolution of our BBCES instrument in the 307-725nm wavelength range. New dispersion relations for N2O, SF6, and CH4 were derived using data in the UV-vis wavelength range. This study provides dispersion relations for refractive indices, n-based Rayleigh scattering cross sections, and absorption cross sections based on more continuous and more extended wavelength ranges than available in the current literature. © Copyright:
语种	英语
scopus关键词	absorption; atmospheric gas; electromagnetic radiation; optical property; Rayleigh wave; scattering; ultraviolet radiation; wavelength
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246523
作者单位	Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, 76100, Israel; Department of Environmental Physics, Institute for Biological Research, Ness Ziona, 74100, Israel; Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, 325, Broadway, Boulder, CO 80305, United States; Department of Chemistry, University of Colorado, 216 UCB, Boulder, CO 80309, United States
推荐引用方式 GB/T 7714	He Q.,Fang Z.,Shoshanim O.,et al. Scattering and absorption cross sections of atmospheric gases in the ultraviolet-visible wavelength range (307-725nm)[J],2021,21(19).
APA	He Q.,Fang Z.,Shoshanim O.,Brown S.S.,&Rudich Y..(2021).Scattering and absorption cross sections of atmospheric gases in the ultraviolet-visible wavelength range (307-725nm).ATMOSPHERIC CHEMISTRY AND PHYSICS,21(19).
MLA	He Q.,et al."Scattering and absorption cross sections of atmospheric gases in the ultraviolet-visible wavelength range (307-725nm)".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.19(2021).