中国科学院国家空间科学中心机构知识库
Advanced  
NSSC OpenIR  > 空间环境部  > 期刊论文
题名: 中间层顶重力波耗散引起钠原子输送的激光雷达观测研究
其他题名: Lidar observations of atmospheric gravity wave dissipation induced Na atoms transportations in the mesopause region at Langfang, China
作者: 巴金; 胡雄; 闫召爱; 郭商勇; 程永强
作者部门: 空间环境部
关键词: 钠荧光多普勒激光雷达 ; 大气重力波耗散 ; 钠层结构 ; 钠原子垂直通量 ; 钠原子产生率
刊名: 地球物理学报
ISSN号: 0001-5733
出版日期: 2017
卷号: 60, 期号:2, 页码:499-506
收录类别: EI
项目资助者: 国家重点研发计划“天地联合多时空尺度近地空间环境监测”课题(2016YFB0501503),国家自然科学基金(41104100)和高分专项青年创新基金(GFZX04060103)共同资助
中文摘要: 利用中国科学院国家空间科学中心廊坊站(40.0°N,116.3°E)钠荧光多普勒激光雷达2011年至2013年共约82 h的钠原子数密度和垂直风观测数据,分析了廊坊地区中间层顶区域大气重力波耗散引起的钠原子输送特征.分析得到,90~100 km处重力波耗散引起的平均钠原子垂直通量整体为负,钠原子向下输送,在93 km处达到最大负值-1.47×108m-3 m·s-1,85~90 km处平均钠原子垂直通量为正,钠原子向上输送,但通量值随高度递减.钠原子垂直通量方向在90 km处发生转变,垂直通量随高度的变化造成钠原子汇聚,汇聚效应引起的平均钠原子产生率最大值在91 km处达到了1.40×108 m-3/h,该值超过了相同高度上模式计算流星烧蚀注入引起的钠原子产生率峰值,说明重力波耗散对钠层结构的形成具有重要影响.与美国SOR和Maui观测结果相比,平均钠原子产生率峰值大小相近,但出现高度不同,说明大气重力波耗散引起的物质输送具有显著的地域变化特征.研究结果可为大气物质输送理论的完善以及大气金属层物理模式的改进提供观测事实参考.
英文摘要: A total of 82 h observation data derived from a sodium fluorescence Doppler lidar of National Space Science Center (Chinese Academy of Sciences) at Langfang station (40.0° N, 116.3° E), China, were used to study Na atoms transportations induced by gravity wave dissipation in the mesopause region. The mean vertical Na flux was upward from 85 to 89 km, while the flux became downward from 90 to 100 km; the maximum flux was -1.47×108m-3m·s-1at 93 km. The mean Na production rate was positive from 85 to 93.5 km, while the rate became negative from 94 to 98 km; the maximum rate was 1.4×108m-3/h at 91 km. These results suggest the activities of gravity wave dissipations accumulate Na atoms at near 91 km and make the mean Na production rate significantly increase between 88 and 92 km. The mean production rate induced by gravity wave dissipation exceeds the model simulated production rate induced by meteoric input at near 91 km, the observation and comparison results indicate gravity wave dissipations play an important role in the formation of Na layer structure in the mesopause region. Compare with the observation result of SOR and Maui, Na flux and Na production rate are respectively comparable between three stations, but the altitude of maximum value of Na flux and Na production are different, the geographical factors are considered to make contribution to the diversities of Na layer and gravity wave activities in different locations. These observation results can provide guidance for parameterization and evolution of atmospheric metal model in the mesopause region. © 2017, Science Press. All right reserved.
语种: 中文
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/5736
Appears in Collections:空间环境部_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
2017602499-506.pdf(1076KB)期刊论文作者接受稿限制开放View 联系获取全文
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[巴金]'s Articles
[胡雄]'s Articles
[闫召爱]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[巴金]‘s Articles
[胡雄]‘s Articles
[闫召爱]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 2017602499-506.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院国家空间科学中心 - Feedback
Powered by CSpace