Development of the Chinese Dual Auroral Radar Network and Preliminary Results by Jiaojiao Zhang, Ailan Lan, Jingye Yan, Xiang Deng, Wei Wang, Hang Li, Lingchen Sun, Ying Nan, Xiaochao Song, Chi Wang

“…In this paper, we present the basic design of the CN‐DARN and its preliminary observations of ionospheric irregularities, subauroral polarization streams (SAPSs) and traveling ionospheric disturbances (TIDs). …”
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Daytime F Region Echoes at Equatorial Ionization Anomaly Crest During Geomagnetic Quiet Period: Observations From Multi‐Instruments by Yi Liu, Zhongxin Deng, Tong Xu, Jian Kong, Chen Zhou, Yibin Yao, Qiong Tang, Zhengyu Zhao

“…Then the large‐scale ionospheric disturbance could further evolve into small‐scale irregularity producing radar echoes through the non‐linear cascade process.…”
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The Mechanism for GNSS‐Based Kinematic Positioning Degradation at High‐Latitudes Under the March 2015 Great Storm by Wenfeng Nie, Adrià Rovira‐Garcia, Mowen Li, Zhenlong Fang, Yong Wang, Dunyong Zheng, Tianhe Xu

“…We aim to discover the mechanism behind the positioning degradation from the perspective of the impacts of the storm‐induced ionospheric disturbance on the global navigation satellite system (GNSS) data processing. …”
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An Empirical Model of the Occurrence Rate of Low Latitude Post‐Sunset Plasma Irregularities Derived From CHAMP and Swarm Magnetic Observations by C. Stolle, T. A. Siddiqui, L. Schreiter, S. K. Das, I. Rusch, M. Rother, E. Doornbos

“…Abstract The prediction of post‐sunset equatorial plasma depletions (EPDs), often called ionospheric plasma bubbles, has remained a challenge for decades. …”
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Simulation of interferometric imaging with EISCAT_3D for fine-scale in-beam incoherent scatter spectra measurements by D. Huyghebaert, D. Huyghebaert, B. Gustavsson, J. Vierinen, A. Kvammen, M. Zettergren, J. Swoboda, I. Virtanen, S. M. Hatch, K. M. Laundal

“…<p>The 233 MHz EISCAT_3D radar system currently under construction in northern Fennoscandia will be able to resolve ionospheric structures smaller than the transmit beam dimensions through the use of interferometric imaging. …”
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Association of structured continuum emission with dynamic aurora by E. Spanswick, J. Liang, J. Houghton, D. Chaddock, E. Donovan, B. Gallardo-Lacourt, C. Keenan, J. Rosehart, Y. Nishimura, D. Hampton, M. Gillies

“…Abstract Patterns of ionospheric luminosity provide a unique window into our complex, coupled space environment. …”
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Modeling TEC Maps Over China Using Particle Swarm Optimization Neural Networks and Long‐Term Ground‐Based GPS, COSMIC, and Fengyun Data by Shuangshuang Shi, Kefei Zhang, Jiaqi Shi, Andong Hu, Dongsheng Zhao, Zhongchao Shi, Peng Sun, Huajing Wu, Suqin Wu

“…Abstract This paper presents a new model for ionospheric total electron content (TEC) over China. …”
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Latitude-Time Total Electron Content Anomalies as Precursors to Japan's Large Earthquakes Associated with Principal Component Analysis by Jyh-Woei Lin

“…The goal of this study is to determine whether principal component analysis (PCA) can be used to process latitude-time ionospheric TEC data on a monthly basis to identify earthquake associated TEC anomalies. …”
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Atmospheric Sounding from Fengyun-3C GPS Radio Occultation Observations: First Results and Validation by Shuanggen Jin, Chao Gao, Junhai Li

“…It is found that the effect of the ionospheric correction residual on the phase delay is below 20 mm, which has minimal impact on bending angle estimation and generates differences of about 1 K in the average temperature profile. …”
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The effects of plasma source on adiabatic electron acceleration at dipolarization fronts by S. N. F. Chepuri, A. N. Jaynes, J. Joseph, D. L. Turner, C. Gabrielse, I. J. Cohen, D. N. Baker, B. H. Mauk, T. Leonard, J. F. Fennell

“…We indirectly studied this by comparing the relative abundances of O+ and He++ as proxies for ionospheric and solar wind populations respectively. …”
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Global Observations of the Short‐Term Disturbances in the Geomagnetic Field and Induced Currents During the Supersubstorms Events of Solar Cycle 24 by Sritam Hajra, Nirvikar Dashora, J. Solomon Ivan

“…The D‐component variations reflect complex ionospheric contributions during the SSC and the main phase with more asymmetries and variability. …”
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Super‐Intense Geomagnetic Storm on 10–11 May 2024: Possible Mechanisms and Impacts by S. Tulasi Ram, B. Veenadhari, A. P. Dimri, J. Bulusu, M. Bagiya, S. Gurubaran, N. Parihar, B. Remya, G. Seemala, Rajesh Singh, S. Sripathi, S. V. Singh, G. Vichare

“…Severe electrodynamic disturbances led to a strong positive ionospheric storm with more than 100% increase in dayside ionospheric Total Electron Content (TEC), affecting GPS positioning/navigation. …”
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Early Ground‐Based Work by Auroral Pioneer Carl Størmer on the High‐Altitude Detached Subauroral Arcs Now Known as “STEVE” by Michael Hunnekuhl, Elizabeth MacDonald

“…MacDonald et al. (2018, https://doi.org/10.1126/sciadv.aaq0030), reports on a link between these ionospheric structures and the subauroral ion drift for the first time. …”
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A Modified Cycle Slip Detection Method with GNSS Doppler Assistance and Optimizing by Adaptive Threshold and Sliding Polynomial Fitting by Kezhao Li, Yunyan Shen, Xiaokui Yue, Yingxiang Jiao, Kai Wang, Zhe Yue, Keke Xu

“…Cycle slip detection (CSD) with GF is disturbed by severe ionospheric delay variations; moreover, CSD or cycle slip repair (CSR) with the MW faces the risk of the disturbance from large pseudorange errors. …”
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Investigation of the Physical Mechanisms of the Formation and Evolution of Equatorial Plasma Bubbles During a Moderate Storm on 17 September 2021 by Kun Wu, Liying Qian, Wenbin Wang, Xuguang Cai, Joseph M. Mclnerney

“…Abstract We investigate in detail the occurrence and evolution of ionospheric equatorial plasma bubbles (EPBs) during a moderate storm on 17 September 2021, using Global‐scale Observations of the Limb and Disk (GOLD) observations and Whole Atmosphere Community Climate Model‐eXtended (WACCM‐X) simulations. …”
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Regional simulations of equatorial spread F driven with, and an analysis of, WAM-IPE electric fields by Aaron Kirchman, David Hysell, Tzu-Wei Fang

“…A three-dimensional, regional simulation is used to investigate ionospheric plasma density irregularities associated with Equatorial Spread F. …”
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Autogenous Electron Acceleration by Ion Flow Vortex in Space Plasmas by C. M. Liu, J. B. Cao, Y. Y. Liu, E. A. Kronberg, X. N. Xing, B. N. Zhao, P. W. Daly

“…Plasma flow vortexes are ubiquitous in space and astrophysical settings and play a vital role in energy and mass transport, contributing to formation of stars and planets, launching and dissipation of astrophysical jets, and coupling between planetary magnetospheres and ionospheres. Here we present in situ observations showing that energetic electrons with energies up to 250 keV can be directly generated inside an ion flow vortex with finite spatial scale. …”
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Interhemispheric Asymmetry in the High‐Latitude Neutral Density Variations During the 13–14 March 2022 Storm by Qingyu Zhu, Gang Lu, Sarah Vines, Marc Hairston

“…These density spikes, accurately modeled by the Global Ionospheric Thermosphere Model (GITM), are identified as high‐latitude neutral mass density anomalies (HDAs). …”
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Global long-term trends in the total electron content by J. Urbář, J. Laštovička

“…<p>Total electron content (TEC) is an important parameter for ionospheric dynamics, global navigation satellite system/Global Positioning System (GNSS/GPS) signal propagation and related applications of GNSS/GPS signals. …”
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Vector Spherical Harmonics for Data‐Assimilative Neutral Wind Estimation by Aurora López Rubio, Seebany Datta‐Barua

“…Abstract In this work we enable the data assimilation algorithm Estimating Model Parameters from Ionospheric Reverse Engineering (EMPIRE) to estimate global neutral winds. …”
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