Academic Journal
Investigation of a mesospheric bore event over northern China
| العنوان: | Investigation of a mesospheric bore event over northern China |
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| المؤلفون: | Q. Li, J. Xu, J. Yue, X. Liu, W. Yuan, B. Ning, S. Guan, J. P. Younger |
| المصدر: | Annales Geophysicae, Vol 31, Pp 409-418 (2013) |
| بيانات النشر: | Copernicus Publications, 2013. |
| سنة النشر: | 2013 |
| المجموعة: | LCC:Science LCC:Physics LCC:Geophysics. Cosmic physics |
| مصطلحات موضوعية: | Science, Physics, QC1-999, Geophysics. Cosmic physics, QC801-809 |
| الوصف: | A mesospheric bore event was observed using an OH all-sky airglow imager (ASAI) at Xinglong (40.2° N, 117.4° E), in northern China, on the night of 8–9 January 2011. Simultaneous observations by a Doppler meteor radar, a broadband sodium lidar, and TIMED/SABER OH intensity and temperature measurements are used to investigate the characteristics and environment of the bore propagation and the possible relations with the Na density perturbations. The bore propagated from northeast to southwest and divided the sky into bright and dark halves. The calculations show that the bore has an average phase velocity of 68 m s−1. The crests following the bore have a horizontal wavelength of ~ 22 km. These parameters are consistent with the hydraulic jump theory proposed by Dewan and Picard, as well as the previous bore reports. Simultaneous wind measurements from the Doppler meteor radar at Shisanling (40.3° N, 116.2° E) and temperature data from SABER on board the TIMED satellite are used to characterize the propagating environment of the bore. The result shows that a thermal-Doppler duct exists near the OH layer that supports the horizontal propagation of the bore. Simultaneous Na lidar observations at Yanqing (40.4° N, 116.0° E) suggest that there is a downward displacement of Na density during the passage of the mesospheric bore event. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0992-7689 1432-0576 14889854 |
| Relation: | https://www.ann-geophys.net/31/409/2013/angeo-31-409-2013.pdf; https://doaj.org/toc/0992-7689; https://doaj.org/toc/1432-0576 |
| DOI: | 10.5194/angeo-31-409-2013 |
| URL الوصول: | https://doaj.org/article/10a7b14889854252969e2569a27e607d |
| رقم الانضمام: | edsdoj.10a7b14889854252969e2569a27e607d |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 09927689 14320576 14889854 |
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| DOI: | 10.5194/angeo-31-409-2013 |