Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL077388 |
Atmospheric Gravity Waves in the Ionosphere and Thermosphere During the 2017 Solar Eclipse | |
Lin, Cissi Y.1; Deng, Yue1; Ridley, Aaron2 | |
2018-06-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:11页码:5246-5252 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | As a cavity of solar radiation created by the lunar shadow moves across the United States on 21 August 2017, decreases in local ionospheric and thermospheric (IT) temperature and density are anticipated. The average velocity of the total solar eclipse across the United States is similar to 700m/s. The supersonically moving lunar shadow has induced bow waves and gravity waves that are observed by the Global Navigation Satellite System (GNSS) network. We use the Global Ionosphere-Thermosphere Model, a global circulation model solving for nonhydrostatic equations, with high-resolution (2 degrees in longitude and 0.5 degrees in latitude) and high-cadence (forcing updated every 2s) settings to investigate the IT responses related to the atmospheric gravity wave perturbations during the solar eclipse. The modeled IT conditions extracted at 5-s cadence at two ground stations reveal different responses in both neutral and electron densities under totality and partial-eclipse scenarios. A bow wave of -0.2 TECu develops and lasts hours since totality, which is comparable with the GNSS observations. Gravity waves with period of 20-30 min observed by GNSS have been reproduced in our simulations. |
英文关键词 | solar eclipse gravity waves bow waves |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000436249900002 |
WOS关键词 | PROPAGATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27063 |
专题 | 气候变化 |
作者单位 | 1.Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA; 2.Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA |
推荐引用方式 GB/T 7714 | Lin, Cissi Y.,Deng, Yue,Ridley, Aaron. Atmospheric Gravity Waves in the Ionosphere and Thermosphere During the 2017 Solar Eclipse[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(11):5246-5252. |
APA | Lin, Cissi Y.,Deng, Yue,&Ridley, Aaron.(2018).Atmospheric Gravity Waves in the Ionosphere and Thermosphere During the 2017 Solar Eclipse.GEOPHYSICAL RESEARCH LETTERS,45(11),5246-5252. |
MLA | Lin, Cissi Y.,et al."Atmospheric Gravity Waves in the Ionosphere and Thermosphere During the 2017 Solar Eclipse".GEOPHYSICAL RESEARCH LETTERS 45.11(2018):5246-5252. |
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