New Insight into Observations of the Ionospheric Effect

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

Deadline for manuscript submissions: closed (22 March 2024) | Viewed by 3626

Special Issue Editor

Department of Space Physics, School of Electronic Information, Wuhan University, Wuhan 430072, China
Interests: ionospheric irregularity and scintillation; ionosphere and sounding techniques; modeling and data assimilation

Special Issue Information

Dear Colleagues,

The ionosphere is an important transition region between the lower atmosphere and the Earth's magnetosphere and has significant temporal and spatial variations. The spatio-temporal distribution of charged particles in the ionosphere is affected by several physical processes, such as electrodynamics under the action of the Earth's magnetic field and collisions with neutral particles. In recent decades, with the continuous development of science and technology and the expansion of human activities into the upper atmosphere and space field, the ionosphere has gained increasing prominence, and monitoring and understanding this layer is thus critical. We invite you to submit papers providing new insights into observations of the ionospheric effect. Relevant directions include ionospheric space weather, ionospheric structures and climatology, ionospheric dynamics and couplings, ionospheric irregularity and scintillation, modeling and data assimilation, and ionosphere and sounding techniques.

Dr. Yi Liu
Guest Editor

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Keywords

  • ionospheric irregularity
  • ionospheric scintillation
  • ionospheric space weather

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Published Papers (3 papers)

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13 pages, 1568 KiB  
Communication
Improvement of SAMI2 with Comprehensive Photochemistry at Mid-Latitudes and a Preliminary Comparison with Ionosonde Data
by Yanli Hu, Tong Xu, Shuji Sun, Mengyan Zhu, Zhongxin Deng and Zhengwen Xu
Atmosphere 2024, 15(1), 67; https://doi.org/10.3390/atmos15010067 - 5 Jan 2024
Viewed by 1274
Abstract
Photochemistry can significantly affect the ionospheric status. Adopting a comprehensive photochemical scheme with 60 reactions, primarily based on the recent systematic study of ion chemistry by Richards in 2011, we revised the open-source SAMI2 (Sami2 is another model of the ionosphere) model to [...] Read more.
Photochemistry can significantly affect the ionospheric status. Adopting a comprehensive photochemical scheme with 60 reactions, primarily based on the recent systematic study of ion chemistry by Richards in 2011, we revised the open-source SAMI2 (Sami2 is another model of the ionosphere) model to SAMI2ph. The scheme includes both ground state and metastable/vibrational excited compositions (e.g., N(2D), N2(ν), and O2(ν)) and associated reactions, which can remarkably affect the ionospheric electron density. The model accuracy is tested using the most widely used ionospheric data foF2 derived from mid-latitude ionosonde stations. The correlation coefficients are larger for SAMI2ph than for SAMI2. In addition, the linear slope k is significantly closer to 1 than the default run for the NmF2 comparisons. The smaller RMSE and b indicate that the modified model provides a reasonably good match with the ionosonde NmF2 measurements. The above results demonstrate that the model with the chosen photochemical scheme performs better than the original SAMI2 at mid-latitude. Full article
(This article belongs to the Special Issue New Insight into Observations of the Ionospheric Effect)
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12 pages, 3459 KiB  
Article
Computerized Ionospheric Tomography Based on the ADS-B System
by Xiang Dong, Zhigang Yuan, Qinglin Zhu, Haining Wang, Fang Sun, Jiawei Zhu, Yi Liu and Chen Zhou
Atmosphere 2023, 14(7), 1091; https://doi.org/10.3390/atmos14071091 - 29 Jun 2023
Cited by 1 | Viewed by 1232 | Correction
Abstract
The broadcast automatic dependent surveillance (ADS-B) system is a new-generation air traffic control system designed to avoid the waste of resources in secondary radars. The establishment of the spaceborne ADS-B system provides a broad prospect for ionospheric tomography. In this paper, the external [...] Read more.
The broadcast automatic dependent surveillance (ADS-B) system is a new-generation air traffic control system designed to avoid the waste of resources in secondary radars. The establishment of the spaceborne ADS-B system provides a broad prospect for ionospheric tomography. In this paper, the external observation information of the ionosphere is obtained by measuring the Faraday rotation angle, that is, the total electron content (TEC). Tomography research can be carried out all over the world to conduct large-scale ionospheric electron density research. The experiment selected two different regions and had a time resolution of two hours, a height resolution of 200 km, a latitude resolution of 2°, and a longitude resolution of 5°. Based on the simulated spaceborne ADS-B signal to invert the regional ionospheric electron density, the latitude, longitude, and height distributions of inversion result are basically consistent with those of the actual ionospheric electron density. Full article
(This article belongs to the Special Issue New Insight into Observations of the Ionospheric Effect)
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1 pages, 135 KiB  
Correction
Correction: Dong et al. Computerized Ionospheric Tomography Based on the ADS-B System. Atmosphere 2023, 14, 1091
by Xiang Dong, Zhigang Yuan, Qinglin Zhu, Haining Wang, Fang Sun, Jiawei Zhu, Yi Liu and Chen Zhou
Atmosphere 2024, 15(5), 522; https://doi.org/10.3390/atmos15050522 - 25 Apr 2024
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Abstract
In the original publication [...] Full article
(This article belongs to the Special Issue New Insight into Observations of the Ionospheric Effect)
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