Lidar Network for Temperature and Wind Measurements in the Mesosphere and Lower Thermosphere Region by Y. Yang, F. Li, X. Cheng, G. Yang, D. Lyu, X. Lin, L. Liu, X. Fang, J. Zheng, L. Du, W. Wang, L. Ren, J. Wang, J. Liang, K. Ji, L. Xu, Z. Chen, K. Ji, H. Zheng, X. Wang, Y. Wang, J. Jiao, X. Wang, X. Xue, Y. Xia, Y. Li, Z. Lin, L. Chen, Z. Chen, J. Xu, G. Li, L. Hu, S. Gong

Get full text

Forecasting Geomagnetic Storm Disturbances and Their Uncertainties Using Deep Learning by D. Conde, F. L. Castillo, C. Escobar, C. García, J. E. García, V. Sanz, B. Zaldívar, J. J. Curto, S. Marsal, J. M. Torta

“…In this work we aim at predicting the SYM‐H index characterizing geomagnetic storms multiple‐hour ahead, using public interplanetary magnetic field (IMF) data from the Sun‐Earth L1 Lagrange point and SYM‐H data. …”
Get full text

Evolution of Magnetohydrodynamic Turbulence in the Expanding Solar Wind: Residual Energy and Intermittency by Chen Shi, Nikos Sioulas, Zesen Huang, Marco Velli, Anna Tenerani, Victor Réville

Get full text

Numerical Simulations of the Geospace Response to the Arrival of an Idealized Perfect Interplanetary Coronal Mass Ejection by Daniel T. Welling, Jeffrey J. Love, E. Joshua Rigler, Denny M. Oliveira, Colin M. Komar, Steven K. Morley

“…However, results diverge away from the equator. dB/dt values in excess of 30 nT/s are found as low as 40° magnetic latitude. Under southward interplanetary magnetic field conditions, magnetopause erosion combines with strong region one Birkeland currents to intensify the dB/dt response. …”
Get full text

Butterfly Distribution of Relativistic Electrons Driven by Parallel Propagating Lower Band Whistler Chorus Waves by S. Saito, Y. Miyoshi

Get full text

Impact Angle Control of Local Intense dB/dt Variations During Shock‐Induced Substorms by Denny M. Oliveira, James M. Weygand, Eftyhia Zesta, Chigomezyo M. Ngwira, Michael D. Hartinger, Zhonghua Xu, Barbara L. Giles, Daniel J. Gershman, Marcos V. D. Silveira, Vítor M. Souza

Get full text

Exploiting Attitude Sensing in Vision-Based Navigation for an Airship by Luiz G. B. Mirisola, Jorge Dias

“…The AHRS combines inertial and earth field magnetic sensors to provide absolute orientation measurements, and our recently developed calibration routine determines the rotation between the frames of reference of the AHRS and the monocular camera. …”
Get full text

Solar Cycle Variability in Coronal Holes and Their Effects on Solar Wind Sources by J. G. Luhmann, Yan Li, C. O. Lee, L. K. Jian, C. N. Arge, P. Riley

“…These measurements provide a long term picture of the related patterns in large scale incident plasma and magnetic field parameters of interest for both interpreting cycles in geospace effects, and understanding how the Sun controls our space environment. …”
Get full text

A Model of High Latitude Ionospheric Convection Derived From SuperDARN EOF Model Data by M. M. Lam, R. M. Shore, G. Chisham, M. P. Freeman, A. Grocott, M.‐T. Walach, L. Orr

“…Our model has the potential to be used to forecast the ionospheric electric field using the real‐time solar wind data available from spacecraft located upstream of the Earth.…”
Get full text

Catastrophic and violent tornadoes: a detailed review of physical-mathematical models by Sergey A. Arsen’yev, Lev V. Eppelbaum

“…In this case, the theory of mesoscale turbulence is used, which allows for the phenomenon of the red turbulent cascade: the energy transfer from smaller turbulent eddies to the region of large scales. The magnetic and electric field generation equations in tornadoes are considered in detail. …”
Get full text

Influence of Solar Wind High‐Speed Streams on the Brazilian Low‐Latitude Ionosphere During the Descending Phase of Solar Cycle 24 by S. P. Moraes‐Santos, C. M. N. Cândido, F. Becker‐Guedes, B. Nava, V. Klausner, C. Borries, F. S. Chingarandi, T. O. Osanyin

“…We discuss the Prompt Penetration Electric Fields and Disturbance Dynamo Electric Fields following the magnetic reconnection between Earth's and interplanetary magnetic field, using observational data and modeling. …”
Get full text

Solar Wind Speed Prediction via Graph Attention Network by Yanru Sun, Zongxia Xie, Haocheng Wang, Xin Huang, Qinghua Hu

“…Accurate solar wind speed prediction and longer lead time will help mitigate the impact of solar storms on aerospace equipment and the Earth's magnetic field. Recently, most approaches do not explicitly capture the relationships between different solar wind features, and the prediction accuracy of 96‐hr is still not good enough. …”
Get full text

Exploring Localized Geomagnetic Disturbances in Global MHD: Physics and Numerics by Erik M. Vandegriff, Daniel T. Welling, Agnit Mukhopadhyay, Andrew P. Dimmock, Steven K. Morley, Ramon E. Lopez

“…Abstract One of the prominent effects of space weather is the formation of rapid geomagnetic field variations on Earth's surface driven by the magnetosphere‐ionosphere system. …”
Get full text

Monitoring of Ionospheric Variability Using the Low lAtitude Long Range Ionospheric raDar (LARID): Capabilities, Advantages and Limitations by Wenjie Sun, Guozhu Li, Baiqi Ning, Lianhuan Hu, Yuichi Otsuka, Guofeng Dai, Haiyong Xie, Xiukuan Zhao, Yi Li, Atsuki Shinbori, Michi Nishioka, Septi Perwitasari, Chi Wang

Get full text

Comparison of Decadal Trends among Total Solar Irradiance Composites of Satellite Observations by Nicola Scafetta, Richard C. Willson

“…The well-established paradigm of positive correlation between Solar Magnetic Field Strength (SMFS) and TSI supports the validity of the upward trend in the ERB results and the corresponding decadal upward trend of the ACRIM composite during solar cycles 21 and 22. …”
Get full text

An Examination of Geomagnetic Induction in Submarine Cables by David H. Boteler, Shibaji Chakraborty, Xueling Shi, Michael D. Hartinger, Xuan Wang

“…The process for calculating the electric fields induced in the sea and in the cable from knowledge of the seawater depth and conductivity and subsea conductivity is explained. …”
Get full text

Solar Origins of August 26, 2018 Geomagnetic Storm: Responses of the Interplanetary Medium and Equatorial/Low‐Latitude Ionosphere to the Storm by A. O. Akala, O. J. Oyedokun, P. O. Amaechi, K. G. Simi, A. Ogwala, O. A. Arowolo

“…The solar wind energy which got transferred into the magnetosphere drove electrical currents, that penetrated down into the ionosphere to produce weak Prompt Penetration Electric Field (PPEF) (0.3 mV/m). For this reason, during the storm, at daytime, plasma densities of the Equatorial Ionization Anomaly (EIA) crests were localized within the inner flank of ±15° magnetic latitude strip. …”
Get full text

Investigating Potential Causes for the Prediction of Spurious Magnetopause Crossings at Geosynchronous Orbit in MHD Simulations by Pauline M. Dredger, Ramon E. Lopez, Yaireska M. Collado‐Vega, Shreeya Khurana, Lutz M. Rastaetter

“…Second, while the models do well when the primary driver of magnetopause motion is a variation in the solar wind density, they tend to overpredict or underpredict the integrated Birkeland currents and their effects during times of strong negative interplanetary magnetic field (IMF) Bz, leading to poorer prediction capability. …”
Get full text

New Findings From Explainable SYM‐H Forecasting Using Gradient Boosting Machines by Daniel Iong, Yang Chen, Gabor Toth, Shasha Zou, Tuija Pulkkinen, Jiaen Ren, Enrico Camporeale, Tamas Gombosi

“…Abstract In this work, we develop gradient boosting machines (GBMs) for forecasting the SYM‐H index multiple hours ahead using different combinations of solar wind and interplanetary magnetic field (IMF) parameters, derived parameters, and past SYM‐H values. …”
Get full text

Ensemble Modeling of Radiation Belt Electron Acceleration by Chorus Waves: Dependence on Key Input Parameters by Man Hua, Jacob Bortnik, Adam C. Kellerman, Enrico Camporeale, Qianli Ma

Get full text