Coupling between Plasmasphere and Upper Atmosphere

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Upper Atmosphere".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 1231

Special Issue Editors


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Guest Editor
Planetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai 519082, China
Interests: solar wind-magnetosphere-ionosphere coupling; magnetospheric plasma waves; plasmaspheric waves; wave-particle interaction

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Guest Editor
School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha 410114, China
Interests: plasmaspheric waves; gravity wave; wave-particle interaction; magnetosphere

Special Issue Information

Dear Colleagues,

The plasmasphere, an inner part of the magnetosphere, is filled with cold and dense plasma of ionospheric origin. The outer boundary of the plasmasphere is located typically between 4 and 6 Re above the Earth's surface. Plasma inside the plasmasphere is guided by the magnetic field lines close to the Earth. Energy and particle transport frequently occurs between the plasmasphere and upper atmosphere, playing a vital role in controlling the geospace environment. 

Understanding the coupling between the plasmasphere and upper atmosphere requires a comprehensive investigation of the related physical processes under various solar wind and geomagnetic conditions. A large number of advanced missions have provided great opportunities for observations of the plasma, wave, and field in the plasmasphere and upper atmosphere, and allowed for simultaneous and conjugate measurements to be taken between these two regions. Based on the observational data, theoretical and numerical works can model and reproduce dynamics, for instance, particle heating and precipitation in the plasmasphere, the depletion and refilling of plasmasphere, the heating of the upper atmosphere, and aurora activities. This Special Issue welcomes the submission of papers that bring new insights into the coupling between the plasmasphere and upper atmosphere. We welcome the submission of observational, theoretical, and numerical studies on the relevant directions on this topic, which could promote the understanding and forecasting of space weather.

Dr. Nigang Liu
Dr. Si Liu
Guest Editors

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Keywords

  • plasmasphere
  • upper atmosphere
  • ionosphere
  • magnetosphere–ionosphere coupling
  • energy and particle transport

Published Papers (1 paper)

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Research

14 pages, 4987 KiB  
Article
GNSS/AQUA Fusion Study of Atmospheric Response Characteristics and Interaction Mechanisms during the 2022 Tonga Volcanic Eruption
by Lulu Ming, Fuyang Ke, Xiangxiang Hu, Wanganyin Cui and Pan Zhao
Atmosphere 2023, 14(11), 1619; https://doi.org/10.3390/atmos14111619 - 28 Oct 2023
Cited by 1 | Viewed by 832
Abstract
A large-scale underwater volcanic eruption occurred at the volcano of Hunga Tonga-Hunga Ha’apai (HTHH) on 15 January 2022. At present, there is no consensus on the ionospheric response characteristics and interaction mechanism during volcanic eruptions. Based on the Global Navigation Satellite System (GNSS), [...] Read more.
A large-scale underwater volcanic eruption occurred at the volcano of Hunga Tonga-Hunga Ha’apai (HTHH) on 15 January 2022. At present, there is no consensus on the ionospheric response characteristics and interaction mechanism during volcanic eruptions. Based on the Global Navigation Satellite System (GNSS), AQUA satellite’s Atmospheric Infrared Sounder (AIRS), the experiment studies the response characteristics of the ionosphere and gravity waves during the eruption of the volcano and their interaction mechanisms and the International Real-Time Geomagnetic Observation Network (INTERMAGNET). First, a geomagnetic anomaly was detected before the eruption, which caused variations in the ionospheric VTEC (Vertical Total Electron Content) by about 15 TECU. Based on the IGS (International GNSS Service) observations, the VTEC distribution between 60° north and south latitudes was retrieved. The results show that before and after the eruption of Tonga Volcano, significant ionospheric anomalies were observed to the south, northwest and southwest of the volcano, with a maximum anomaly of 15 TECU. The study indicates that the geomagnetic anomaly disturbance is one of the precursors of volcanic eruption and has a certain degree of impact on the ionosphere. A correlation between geomagnetic anomalies and ionospheric anomalies was found to exist. The vast impact from the volcanic eruption excites gravity waves over the surface, which then propagate longitudinally, further perturbing the ionosphere. It is also detected that the ionospheric anomaly perturbation has a high coincidence effect with the gravity wave anomaly. Therefore, the gravity waves generated by atmospheric variations are used to explain the ionospheric perturbation phenomenon caused by volcanic eruptions. Full article
(This article belongs to the Special Issue Coupling between Plasmasphere and Upper Atmosphere)
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