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Sodium lidar-observed gravity wave breaking followed by an upward propagation of sporadic sodium layer over Hefei, China

文献类型：期刊论文

作者Ban, Chao1,2; Li, Tao1,2; Fang, Xin1,2; Dou, Xiankang1,2; Xiong, Jiangang3
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2015-09-01
卷号120期号:9页码:7958-7969
关键词Gravity Wave Breaking Sodium Lidar Temperature And Zonal Wind Sporadic Sodium Layer
DOI10.1002/2015JA021339
文献子类Article
英文摘要The University of Science and Technology of China sodium temperature/wind lidar observed a strong zonal wind shear (similar to 60m/s/km) near 98km between 1315 and 1330 UT on 29 July 2013 and a cooling near 96-100km (above a warming near 90-95km) between 1330 and 1430 UT. This suggests a possible gravity wave (GW) breaking event. Comparison of the lidar results with observations from a nearby meteor radar and with satellite results indicated that the GW likely broke down over a large horizontal area. In addition, the sodium number density suddenly increased 10-12 times (approximate to 13,000atm/cm(3)) near 95km at 1400 UT, immediately following the GW breaking. This sporadic sodium layer (SSL), which is different from most previously observed SSL events (which propagate downward), tended to propagate upward and also appeared similar to 2min earlier in the west channel than in the east channel. The horizontal propagation direction of the SSL was aligned with the horizontal wind direction, which was likely due to the propagation of a high-density sodium layer from the northwest of the lidar site, and was possibly related to the earlier GW breaking event.
WOS关键词STARFIRE OPTICAL-RANGE ; MESOPAUSE REGION ; ATMOSPHERIC STABILITY ; LOWER THERMOSPHERE ; INVERSION LAYER ; TIDAL STRUCTURE ; NA ; TEMPERATURE ; CHEMISTRY ; ARECIBO
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000363876800060
资助机构National Natural Science Foundation(41225017 ; National Natural Science Foundation(41225017 ; Chinese Academy of Sciences Key Research Program(KZZD-EW-01) ; Chinese Academy of Sciences Key Research Program(KZZD-EW-01) ; National Basic Research Program of China(2012CB825605) ; National Basic Research Program of China(2012CB825605) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 41025016 ; 41025016 ; 41121003 ; 41121003 ; 41304122) ; 41304122) ; National Natural Science Foundation(41225017 ; National Natural Science Foundation(41225017 ; Chinese Academy of Sciences Key Research Program(KZZD-EW-01) ; Chinese Academy of Sciences Key Research Program(KZZD-EW-01) ; National Basic Research Program of China(2012CB825605) ; National Basic Research Program of China(2012CB825605) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 41025016 ; 41025016 ; 41121003 ; 41121003 ; 41304122) ; 41304122)
源URL[http://ir.iggcas.ac.cn/handle/132A11/62177]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
作者单位1.Univ Sci & Technol China, Chinese Acad Sci, Key Lab Geospace Environm, Hefei 230026, Peoples R China
2.Univ Sci & Technol China, Sch Earth & Space Sci, Mengcheng Natl Geophys Observ, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Ban, Chao,Li, Tao,Fang, Xin,et al. Sodium lidar-observed gravity wave breaking followed by an upward propagation of sporadic sodium layer over Hefei, China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2015,120(9):7958-7969.
APA Ban, Chao,Li, Tao,Fang, Xin,Dou, Xiankang,&Xiong, Jiangang.(2015).Sodium lidar-observed gravity wave breaking followed by an upward propagation of sporadic sodium layer over Hefei, China.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,120(9),7958-7969.
MLA Ban, Chao,et al."Sodium lidar-observed gravity wave breaking followed by an upward propagation of sporadic sodium layer over Hefei, China".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 120.9(2015):7958-7969.

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来源：地质与地球物理研究所

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