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Evaluation of processes that affect the photochemical timescale of the sodium layer
Xu, J. Y.; Smith, A. K.; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationJournal of atmospheric and solar-terrestrial physics
2005
Pages1216-1225
Language英语
ISBN1364-6826
AbstractWe apply the method of the eigenvalue and eigenvector analysis (EEA method) to analyze the photochemical timescale of the sodium layer chemical system to perturbations. The results show that the timescales of three important sodium species, Na, Na+ and NaHCO3, vary strongly with altitude and are significantly different during day and night. For these three species, the EEA method gives a photochemical timescale that differs strongly from the traditional lifetime, defined as the inverse of the photochemical loss rate. For other chemical species in the sodium layer, the two methods of predicting chemical lifetime give virtually identical results. Tests of the sensitivity of the photochemical timescale to changes of the background conditions indicate that the photochemical timescale of Na is sensitive to the changes of the background densities of O-3, H, and O. (c) 2005 Elsevier Ltd. All rights reserved.
KeywordSodium Layer Mesopause Region Timescale Photochemistry Perturbation
Conference NameAGU Meeting on Meteors and the Mesopause
Conference Date2005
Conference PlaceSan Francisco, CA
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/927
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Xu, J. Y.,Smith, A. K.,北京8701信箱. Evaluation of processes that affect the photochemical timescale of the sodium layer[C]. OXFORD:Pergamon-Elsevier Science Ltd,2005:1216-1225.
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