Analysis on the global morphology of stratospheric gravity wave activity deduced from the COSMIC GPS occultation profiles
文献类型：期刊论文
| 作者 | Xiao, C. Y. ; Hu, X. |
| 刊名 | Gps Solutions
 |
| 出版日期 | 2010 |
| 卷号 | 14期号:1页码:65-74 |
| 关键词 | COSMIC GPS radio occultation Gravity waves Background wind Topography Convection Planetary waves |
| ISSN号 | 1080-5370 |
| 通讯作者 | 北京8701信箱 |
| 英文摘要 | Monthly mean global morphologies of potential energy density Ep from stratospheric gravity waves are revealed by observations of COSMIC GPS radio occultation. The Ep is obtained from vertical wavelengths ranging from 2 to 10 km over cells of 1 9 2 in latitude and longitude. The computed values confirm previous results and obtain new ones. The large gravity wave Ep values found in the tropics between 25 N and 25 S could be mainly due to the strong tropical cumulus convection; July values are larger than those for January (2007). In mid and high latitudes, the most prominent features of the northern winter hemisphere are the enhanced densities above the Eurasian continent and the North Atlantic and the depressed Ep values above the North Pacific and North America for which topography, wind sources and wind filtering may be responsible. In southern winter hemisphere, large Ep values are found around 180 and 300 longitudes that are likely due to the topography of the Antarctic plateau, the Antarctic Peninsula and South America. Enhanced Ep values are found over Scandinavia. However, there is no clear evidence to show that gravity waves are localized over the Rocky Mountains, the Himalayas and the Andes. Topography and planetary wave modulations are proposed to interpret the large-scale longitudinal variations and interhemisphere asymmetry of the GW activity. |
| 学科主题 | 空间环境 |
| 收录类别 | SCI |
| 原文出处 | http://www.springerlink.com/content/j17r6672v8k63843/fulltext.pdf |
| 语种 | 英语 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/306]  |
| 专题 | 国家空间科学中心_空间环境部 |
| 推荐引用方式 GB/T 7714 | Xiao, C. Y.,Hu, X.. Analysis on the global morphology of stratospheric gravity wave activity deduced from the COSMIC GPS occultation profiles[J]. Gps Solutions,2010,14(1):65-74. |
| APA | Xiao, C. Y.,&Hu, X..(2010).Analysis on the global morphology of stratospheric gravity wave activity deduced from the COSMIC GPS occultation profiles.Gps Solutions,14(1),65-74. |
| MLA | Xiao, C. Y.,et al."Analysis on the global morphology of stratospheric gravity wave activity deduced from the COSMIC GPS occultation profiles".Gps Solutions 14.1(2010):65-74. |
入库方式： OAI收割
来源：国家空间科学中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。