Dynamic Responses of Outer Radiation Belt Electron Phase Space Densities to Geomagnetic Storms: A Statistical Analysis Based on Van Allen Probes Observations by Xiaoyu Wang, Binbin Ni, Xing Cao, Xin Ma, Yuan Lei, Xiankang Dou

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Magnetotelluric Sampling and Geoelectric Hazard Estimation: Are National‐Scale Surveys Sufficient? by Benjamin S. Murphy, Greg M. Lucas, Jeffrey J. Love, Anna Kelbert, Paul A. Bedrosian, E. Joshua Rigler

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Validation of Simulated Statistical Characteristics of Magnetosphere‐Ionosphere Coupling in Global Geospace Simulations Over an Entire Carrington Rotation by Qianfeng Yin, Kevin H. Pham, Junjie Chen, Binzheng Zhang

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Toward GIC Forecasting: Statistical Downscaling of the Geomagnetic Field to Improve Geoelectric Field Forecasts by C. Haines, M. J. Owens, L. Barnard, M. Lockwood, C. D. Beggan, A. W. P. Thomson, N. C. Rogers

“…Abstract Geomagnetically induced currents (GICs) are an impact of space weather that can occur during periods of enhanced geomagnetic activity. …”
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A Superposed Epoch Analysis of Auroral Oval Coverage During Substorms Using Deep Learning‐Based Segmentation Models by Jia‐Nan Jiang, Zi‐Ming Zou, Yang Lu, Jia Zhong, Yong Wang, Yu‐Zhang Ma, Bian‐Long Zhao

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Forecasting Megaelectron‐Volt Electrons Inside Earth's Outer Radiation Belt: PreMevE 2.0 Based on Supervised Machine Learning Algorithms by Rafael Pires de Lima, Yue Chen, Youzuo Lin

“…Abstract We present the recent progress in upgrading a predictive model for megaelectron‐volt (MeV) electrons inside the Earth's outer Van Allen belt. …”
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Deriving Ionospheric Sporadic E Intensity From FORMOSAT‐3/COSMIC and FY‐3C Radio Occultation Measurements by Tianyang Hu, Jia Luo, Xiaohua Xu

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Comparative Accuracies of Models for Drag Prediction During Geomagnetically Disturbed Periods: A First Principles Model Versus Empirical Models by R. L. Walterscheid, M. W. Chen, C.‐C. Chao, S. Gegenheimer, J. Cabrera‐Guzman, J. McVey

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One‐Day Forecasting of Global TEC Using a Novel Deep Learning Model by Sujin Lee, Eun‐Young Ji, Yong‐Jae Moon, Eunsu Park

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Beyond Basic Drag in Interplanetary CME Modeling: Effects of Solar Wind Pileup and High‐Speed Streams by C. Kay, T. Nieves‐Chinchilla, S. J. Hofmeister, E. Palmerio

“…Abstract Coronal mass ejections (CMEs) cause severe space weather effects throughout our solar system. As a fast CME propagates through interplanetary space, it accumulates solar wind materials at its front. …”
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A New Frontier in Ionospheric Observations: GPS Total Electron Content Measurements From Ocean Buoys by Irfan Azeem, Geoff Crowley, Victoriya V. Forsythe, Adam S. Reynolds, Erik M. Stromberg, Gordon R. Wilson, Craig A. Kohler

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Reconstruction of the Radiation Belts for Solar Cycles 17–24 (1933–2017) by A. A. Saikin, Y. Y. Shprits, A. Y. Drozdov, D. A. Landis, I. S. Zhelavskaya, S. Cervantes

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Daytime Equatorial Spread F‐Like Irregularities Detected by HF Doppler Receiver and Digisonde by B. Olugbon, E. O. Oyeyemi, A. Kascheyev, A. B. Rabiu, A. A. Obafaye, O. O. Odeyemi, A. O. Adewale

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Correcting Projection Effects in CMEs Using GCS‐Based Large Statistics of Multi‐Viewpoint Observations by Harshita Gandhi, Ritesh Patel, Vaibhav Pant, Satabdwa Majumdar, Sanchita Pal, Dipankar Banerjee, Huw Morgan

“…Abstract This study addresses the limitations of single‐viewpoint observations of Coronal Mass Ejections (CMEs) by presenting results from a 3D catalog of 360 CMEs during solar cycle 24, fitted using the Graduated Cylindrical Shell (GCS) model. …”
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Data Assimilative Optimization of WSA Source Surface and Interface Radii using Particle Filtering by Grant David Meadors, Shaela I. Jones, Kyle S. Hickmann, Charles N. Arge, Humberto C. Godinez‐Vasquez, Carl J. Henney

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An Examination of SuperDARN Backscatter Modes Using Machine Learning Guided by Ray‐Tracing by B. S. R. Kunduri, J. B. H. Baker, J. M. Ruohoniemi, E. G. Thomas, S. G. Shepherd

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A Framework for Understanding and Quantifying the Loss and Acceleration of Relativistic Electrons in the Outer Radiation Belt During Geomagnetic Storms by Kyle R. Murphy, Ian R. Mann, David G. Sibeck, I. Jonathan Rae, C.E.J. Watt, Louis G. Ozeke, Shri G. Kanekal, Daniel N. Baker

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Physics‐Based Approach to Thermospheric Density Estimation Using CubeSat GPS Data by Shaylah M. Mutschler, Penina Axelrad, Eric K. Sutton, Dallas Masters

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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

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Unfolding the Neutron Flux Spectrum on the Surface of Mars Using the MSL‐RAD and Odyssey‐HEND Data by L. M. Martinez Sierra, I. Jun, B. Ehresmann, C. Zeitlin, J. Guo, M. Litvak, K. Harshman, D. Hassler, I. G. Mitrofanov, D. Matthiä, S. Loffler

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