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Gravity Wave Propagation from the Stratosphere into the Mesosphere Studied with Lidar, Meteor Radar, and TIMED/SABER
Gong, Shaohua; Yang, Guotao; Xu, Jiyao; Liu, Xiao; Li, Qinzeng
Department空间科学部
Source PublicationATMOSPHERE
2019
Volume10Issue:2Pages:81
DOI10.3390/atmos10020081
ISSN2073-4433
Language英语
Keywordgravity wave lidar meteor radar TIMED SABER the middle and upper atmosphere
AbstractA low-frequency inertial atmospheric gravity wave (AGW) event was studied with lidar (40.5 degrees N, 116 degrees E), meteor radar (40.3 degrees N, 116.2 degrees E), and TIMED/SABER at Beijing on 30 May 2012. Lidar measurements showed that the atmospheric temperature structure was persistently perturbed by AGWs propagating upward from the stratosphere into the mesosphere (35-86 km). The dominant contribution was from the waves with vertical wavelengths z=8-10km and wave periods Tob=6.6 +/- 0.7h. Simultaneous observations from a meteor radar illustrated that MLT horizontal winds were perturbed by waves propagating upward with an azimuth angle of =247 degrees, and the vertical wavelength (z=10km) and intrinsic period (Tin=7.4h) of the dominant waves were inferred with the hodograph method. TIMED/SABER measurements illustrated that the vertical temperature profiles were also perturbed by waves with dominant vertical wavelength z=6-9km. Observations from three different instruments were compared, and it was found that signatures in the temperature perturbations and horizontal winds were induced by identical AGWs. According to these coordinated observation results, the horizontal wavelength and intrinsic phase speed were inferred to be 560 km and 21 m/s, respectively. Analyses of the Brunt-Vaisala frequency and potential energy illustrated that this persistent wave propagation had good static stability.
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6960
Collection空间科学部
Recommended Citation
GB/T 7714
Gong, Shaohua,Yang, Guotao,Xu, Jiyao,et al. Gravity Wave Propagation from the Stratosphere into the Mesosphere Studied with Lidar, Meteor Radar, and TIMED/SABER[J]. ATMOSPHERE,2019,10(2):81.
APA Gong, Shaohua,Yang, Guotao,Xu, Jiyao,Liu, Xiao,&Li, Qinzeng.(2019).Gravity Wave Propagation from the Stratosphere into the Mesosphere Studied with Lidar, Meteor Radar, and TIMED/SABER.ATMOSPHERE,10(2),81.
MLA Gong, Shaohua,et al."Gravity Wave Propagation from the Stratosphere into the Mesosphere Studied with Lidar, Meteor Radar, and TIMED/SABER".ATMOSPHERE 10.2(2019):81.
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