Evaluation of processes that affect the photochemical timescale of the sodium layer
文献类型：会议论文
| 作者 | Xu, J. Y.; Smith, A. K. |
| 出版日期 | 2005 |
| 会议名称 | AGU Meeting on Meteors and the Mesopause |
| 会议日期 | 2005 |
| 会议地点 | San Francisco, CA |
| 关键词 | sodium layer mesopause region timescale photochemistry perturbation |
| 页码 | 1216-1225 |
| 通讯作者 | 北京8701信箱 |
| 英文摘要 | We 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. |
| 收录类别 | CPCI |
| 会议录 | Journal of atmospheric and solar-terrestrial physics
 |
| 会议录出版者 | Pergamon-Elsevier Science Ltd |
| 学科主题 | 空间物理 |
| 会议录出版地 | OXFORD |
| 语种 | 英语 |
| ISBN号 | 1364-6826 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/927]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Xu, J. Y.,Smith, A. K.. Evaluation of processes that affect the photochemical timescale of the sodium layer[C]. 见:AGU Meeting on Meteors and the Mesopause. San Francisco, CA. 2005. |
入库方式： OAI收割
来源：国家空间科学中心
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