Wave Composition, Propagation, and Polarization of MHD Turbulence within 0.3AU as Observed by PSPTurbulence, a ubiquitous phenomenon in interplanetary space, is crucial for the energy conversion of space plasma at multiple scales. This work focuses on the propagation, polarization and wave…Xingyu Zhu, Jiansen He, Daniel Verscharen et al.·Sep 8, 2020SaveLearn
Directed Network of Substorms Using SuperMAG Ground-Based Magnetometer DataWe quantify the spatiotemporal evolution of the substorm ionospheric current system utilizing the SuperMAG 100+ magnetometers.We construct dynamical directed networks from this data for the first…L. Orr, S. C. Chapman, J. W. Gjerloev·Sep 7, 2020SaveLearn
Violation of the zeroth law of turbulence in space plasmasThe zeroth law of turbulence states that, for fixed energy input into large-scale motions, the statistical steady state of a turbulent system is independent of microphysical dissipation properties.…Romain Meyrand, Jonathan Squire, Alexander A. Schekochihin et al.·Sep 6, 2020SaveLearn
Topside ReconnectionIt is proposed that reconnection would be a main mechanism governing the plasma processes on auroral time scales in the topside ionosphere/high-latitude magnetosphere transition. It occurs in the…R. A. Treumann, Wolfgang Baumjohann·Sep 2, 2020SaveLearn
Observational evidence for solar wind proton heating by ion-scale turbulenceBased on in-situ measurements by Wind spacecraft from 2005 to 2015, this letter reports for the first time a clearly scale-dependent connection between proton temperatures and the turbulence in the…G. Q. Zhao, Y. Lin, X. Y. Wang et al.·Aug 31, 2020SaveLearn
Magnetic field turbulence in the solar wind at sub-ion scales: in situ observations and numerical simulationsWe investigate the transition of the solar wind turbulent cascade from MHD to sub-ion range by means of a detail comparison between in situ observations and hybrid numerical simulations. In…L. Matteini, L. Franci, O. Alexandrova et al.·Aug 30, 2020SaveLearn
Magnetospheric Multiscale (MMS) observations of foreshock transients at their very early stageForeshock transients are ion kinetic structures in the ion foreshock. Due to their dynamic pressure perturbations, they can disturb the bow shock and magnetosphere-ionosphere system. They can also…Terry Z. Liu, Xin An, Hui Zhang et al.·Aug 27, 2020SaveLearn
Conductance Model for Extreme Events : Impact of Auroral Conductance on Space Weather ForecastsIonospheric conductance is a crucial factor in regulating the closure of magnetospheric field-aligned currents through the ionosphere as Hall and Pedersen currents. Despite its importance in…Agnit Mukhopadhyay, Daniel T Welling, Michael W Liemohn et al.·Aug 27, 2020SaveLearn
Effect of Incoming Solar Particle Radiations on The Exosphere of MarsMars Exospheric Neutral Composition Analyzer (MENCA) of Mars Orbiter Mission (MOM) measures the in-situ neutral upper atmospheric constituents of Mars. Martian lower atmosphere predominated by…Kamsali Nagaraja, Praveen Kumar Basuvaraj, S. C. Chakravarty et al.·Aug 23, 2020SaveLearn
A charging model for the Rosetta spacecraftContext. The electrostatic potential of a spacecraft, VS, is important for the capabilities of in situ plasma measurements. Rosetta has been found to be negatively charged during most of the comet…F. L. Johansson, A. I. Eriksson, N. Gilet et al.·Aug 21, 2020SaveLearn
Effects of Solar Activity on Taylor Scale and Correlation Scale in Solar Wind Magnetic FluctuationsThe correlation scale and the Taylor scale are evaluated for interplanetary magnetic field fluctuations from two-point, single time correlation function using the Advanced Composition Explorer (ACE),…G. Zhou, H. -Q. He, W. Wan·Aug 19, 2020SaveLearn
A Quasi-Linear Diffusion Model for Resonant Wave-Particle Instability in Homogeneous PlasmaIn this paper, we develop a model to describe the generalized wave-particle instability in a quasi-neutral plasma. We analyze the quasi-linear diffusion equation for particles by expressing an…Seong-Yeop Jeong, Daniel Verscharen, Robert T. Wicks et al.·Aug 18, 2020SaveLearn
Cross Helicity of the November 2018 Magnetic Cloud Observed by the Parker Solar ProbeMagnetic clouds are large-scale transient structures in the solar wind with low plasma β, low-amplitude magnetic field fluctuations, and twisted field lines with both ends often connected to…S. W. Good, E. K. J. Kilpua, M. Ala-Lahti et al.·Aug 18, 2020SaveLearn
Electrostatic Waves and Electron Heating Observed over Lunar Crustal Magnetic AnomaliesAbove lunar crustal magnetic anomalies, large fractions of solar wind electrons and ions can be scattered and stream back towards the solar wind flow, leading to a number of interesting effects such…F. Chu, J. S. Halekas, Xin Cao et al.·Aug 18, 2020SaveLearn
PIC simulations of microinstabilities and waves at near-Sun solar wind perpendicular shocks: Predictions for Parker Solar Probe and Solar OrbiterMicroinstabilities and waves excited at moderate-Mach-number perpendicular shocks in the near-Sun solar wind are investigated by full particle-in-cell (PIC) simulations. By analyzing the dispersion…Zhongwei Yang, Ying D. Liu, Shuichi Matsukiyo et al.·Aug 16, 2020SaveLearn
Ionospheric response to Strong Geomagnetic Storms during 2000-2005: An IMF clock angle perspectiveThis paper presents the equatorial ionospheric response to eleven strong-to-severe geomagnetic storms that occurred during the period 2000-2005, the declining phase of the solar cycle 23. The…Sumanjit Chakraborty, Sarbani Ray, Abhirup Datta et al.·Aug 15, 2020SaveLearn
Magnetic Cloud and Sheath in the Ground-Level Enhancement Event of 2000 July 14. I. Effects on the Solar Energetic ParticlesGround-level enhancements (GLEs) generally accompany with fast interplanetary coronal mass ejections (ICMEs), the shocks driven by which are the effective source of solar energetic particles (SEPs).…S. -S. Wu, G. Qin·Aug 14, 2020SaveLearn
Comment on "Solar Wind and Heavy Ion Properties of Interplanetary Coronal Mass Ejections" by M.J.OwensA recent paper by Owens (2018) presents a statistical analysis of the properties of interplanetary coronal mass ejections (ICMEs) and variations in their compositions and ion charge-state signatures…Yu. I. Yermolaev, I. G. Lodkina·Aug 12, 2020SaveLearn
Formation of foreshock transients and associated secondary shocksUpstream of shocks, the foreshock is filled with hot ions. When these ions are concentrated and thermalized around a discontinuity, a diamagnetic cavity bounded by compressional boundaries, referred…Xin An, Terry Z. Liu, Jacob Bortnik et al.·Aug 7, 2020SaveLearn
Spread-F occurrence during geomagnetic storms near the southern crest of the EIA in ArgentinaThis work presents, for the first time, the analysis of the occurrence of ionospheric irregularities during geomagnetic storms at Tucum\'an-Argentina, a low latitude station in the Southern American…Gilda González·Aug 7, 2020SaveLearn
Evaluation of CME Arrival Prediction Using Ensemble Modeling Based on Heliospheric Imaging ObservationsIn this study, we evaluate a coronal mass ejection (CME) arrival prediction tool that utilizes the wide-angle observations made by STEREO's heliospheric imagers (HI). The unsurpassable advantage of…Tanja Amerstorfer, Jürgen Hinterreiter, Martin A. Reiss et al.·Aug 6, 2020SaveLearn
Whistler Waves and Electron Properties in the Inner Heliosphere: Helios ObservationsWe present the analysis of narrowband whistler wave signatures observed in the inner heliosphere (0.3-1 au). These signatures are bumps in the spectral density in the 10-200 Hz frequency range of the…Vamsee Krishna Jagarlamudi, Olga Alexandrova, Laura Bercic et al.·Aug 5, 2020SaveLearn
Ensemble Forecasting of Major Solar Flares: Methods for Combining ModelsOne essential component of operational space weather forecasting is the prediction of solar flares. With a multitude of flare forecasting methods now available online it is still unclear which of…Jordan A. Guerra, Sophie A. Murray, D. Shaun Bloomfield et al.·Aug 2, 2020SaveLearn
Estimating Satellite Orbital Drag During Historical Magnetic SuperstormsUnderstanding extreme space weather events is of paramount importance in efforts to protect technological systems in space and on the ground. Particularly in the thermosphere, the subsequent extreme…Denny M. Oliveira, Eftyhia Zesta, Hisashi Hayakawa et al.·Jul 27, 2020SaveLearn
Analysis of solar wind energy and the Akasofu parameter for energy dynamics assessment during SupersubstormSolar activities have significant impact on the member of the solar systems including earth. As earth is a planet with its own magnetic field, solar emissions with magnetic fields do interact with…Shailaja Wasti·Jul 24, 2020SaveLearn