Orographic Primary and Secondary Gravity Waves in the Middle Atmosphere From 16-Year SABER Observations | |
Liu, Xiao1,2; Xu, Jiyao2,3; Yue, Jia4; Vadas, Sharon L.5; Becker, Erich6 | |
刊名 | Geophysical Research Letters |
2019 | |
卷号 | 46期号:8页码:4512-4522 |
ISSN号 | 0094-8276 |
DOI | 10.1029/2019GL082256 |
英文摘要 | The seasonal and height dependencies of the orographic primary and larger-scale secondary gravity waves (GWs) have been studied using the temperature profiles measured by Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) from 2002 to 2017. At ~40°S and during Southern Hemisphere winter, there is a strong GW peak over the Andes mountains that extend to z ~ 55 km. Using wind and topographic data, we show that orographic GWs break above the peak height of the stratospheric jet. At z ~ 55–65 km, GW breaking and momentum deposition create body forces that generate larger-scale secondary GWs; we show that these latter GWs form a wide peak above 65 km with a westward tilt. At middle latitudes during summer in the respective hemisphere, orographic GW breaking also generates larger-scale secondary GWs that propagate to higher altitudes. Both orographic primary and larger-scale secondary GWs are likely responsible for most of the non-equatorial peaks of the persistent global distribution of GWs in SABER. ©2019. American Geophysical Union. All Rights Reserved. |
内容类型 | 期刊论文 |
源URL | [http://ir.nssc.ac.cn/handle/122/7023] |
专题 | 国家空间科学中心_空间科学部 |
作者单位 | 1.Henan Engineering Laboratory for Big Data Statistical Analysis and Optimal Control, School of Mathematics and Information Science, Henan Normal University, Xinxiang, China; 2.State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing, China; 3.College of Earth Science, University of Chinese Academy of Science, Beijing, China; 4.Atmospheric and Planetary Sciences, Hampton University, Hampton; VA, United States; 5.Northwest Research Associates, Boulder; CO, United States; 6.Leibniz Institute of Atmospheric Physics, Kühlungsborn, Germany |
推荐引用方式 GB/T 7714 | Liu, Xiao,Xu, Jiyao,Yue, Jia,et al. Orographic Primary and Secondary Gravity Waves in the Middle Atmosphere From 16-Year SABER Observations[J]. Geophysical Research Letters,2019,46(8):4512-4522. |
APA | Liu, Xiao,Xu, Jiyao,Yue, Jia,Vadas, Sharon L.,&Becker, Erich.(2019).Orographic Primary and Secondary Gravity Waves in the Middle Atmosphere From 16-Year SABER Observations.Geophysical Research Letters,46(8),4512-4522. |
MLA | Liu, Xiao,et al."Orographic Primary and Secondary Gravity Waves in the Middle Atmosphere From 16-Year SABER Observations".Geophysical Research Letters 46.8(2019):4512-4522. |
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