From Bow Waves to Traveling Atmospheric Disturbances: Thermospheric Perturbations Along Solar Eclipse Trajectory

Maodong Yan; Tong Dang; Jiuhou LeiWenbin WangShun-Rong ZhangHuijun Le

首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >From Bow Waves to Traveling Atmospheric Disturbances: Thermospheric Perturbations Along Solar Eclipse Trajectory

【24h】

From Bow Waves to Traveling Atmospheric Disturbances: Thermospheric Perturbations Along Solar Eclipse Trajectory

机译：从首波旅行大气干扰:Thermospheric扰动日食轨迹

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

In this study, we investigate the characteristics of thermospheric perturbations triggered by a set of four solar eclipses, using the Thermosphere Ionosphere Electrodynamics General Circulation Model. Simulations show that temperature and horizontal wind perturbations have different wave rears but similar wavefronts, due to the coupling of energetic and dynamic processes. The perturbations are closely related to the eclipse trajectory, and their phase speed is modulated by the eclipse speed. As the eclipse shadow sweeps through the upper atmosphere, traveling atmospheric disturbances (TADs) are launched in the eclipse region and they, moving along with their moon shadow source, form bow wavefronts of thermospheric disturbances. The perturbations at a particular time are superimposed by preexisting waves and newly excited waves. With the termination of the eclipse near the sunset terminator,individual sequences are not any more organized along a specific alignment to form a bow wave. Instead,they evolve into freely propagating large-scale TADs. The large-scale TADs remain propagating in the direction perpendicular to the wavefronts, which is determined by history of the eclipse trajectory and thermospheric conditions. These conditions include specifically season and the latitudinal location of the eclipse trajectory.

机译：在这项研究中,我们调查的特点thermospheric扰动引发的一组四个日食,使用热大气层电离层电动力学环流模型。水平风扰动波不同发火,但类似的波阵面时,由于耦合精力充沛的和动态的过程。eclipse扰动是密切相关的轨迹,和他们的相速度调制eclipse的速度。通过上层大气,旅行大气扰动(TADs)推出的eclipse地区和他们一起移动月亮的影子源,形成弓时发生的thermospheric干扰。一个特定的时间被先前存在的叠加海浪和新兴奋波。终止eclipse附近的日落《终结者》,个人序列不是任何更多形成一个组织在一个特定的对齐冲击波。大规模TADs传播。TADs仍然传播的方向垂直的波阵面时,由eclipse的历史轨迹和thermospheric条件。包括具体季节和纬度eclipse的位置轨迹。

著录项

来源
《Journal of Geophysical Research, A. Space Physics: JGR》 |2021年第4期|e2020JA028523-1-e2020JA028523-12|共12页
作者
Maodong Yan; Tong Dang; Jiuhou LeiWenbin WangShun-Rong ZhangHuijun Le;
展开▼
作者单位

CAS Key Laboratory of Geospace Environment,School of Earth and Space Sciences,University of Science and Technology of China,Hefei,China;

High Altitude Observatory,National Center for Atmospheric Research,Boulder,CO,USA;

MIT Haystack Observatory,Westford,MA,USAInstitute of Geology and Geophysics,Chinese Academy of Sciences,Beijing,China;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
ECLIPSES; wave fronts; BOWbow wavesperturbationSolar eclipseAtmospheric disturbancestrajectoryphase speed;

机译：日食;波前BOWbow wavesperturbationSolareclipseAtmospheric disturbancestrajectoryphase速度;

相似文献

外文文献
中文文献

1. Prediction of the thermospheric and ionospheric responses to the 21 June 2020 annular solar eclipse [J] . Tong Dang, JiuHou Lei, WenBin Wang, 地球与行星物理（英文） . 2020,第003期
2. Prediction of the thermospheric and ionospheric responses to the 21 June 2020 annular solar eclipse [J] . Tong Dang, JiuHou Lei, WenBin Wang, 地球与行星物理:英文版 . 2020,第003期
3. Broadband radio spectral observations of the solar eclipse on 2008-08-01 and its implications on the quiet Sun atmospheric model [J] . TAN BaoLin, CHEN LinJie, JI GuoShu, 中国科学:物理学力学天文学（英文版） . 2009,第011期

From Bow Waves to Traveling Atmospheric Disturbances: Thermospheric Perturbations Along Solar Eclipse Trajectory

摘要

著录项

相似文献

相关主题

期刊订阅