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Mary Hudson

MHD-Test Particles Simulations of Moderate CME and CIR-Driven Geomagnetic Storms at Solar Minimum

Simulations
Thursday, December 2, 2021

Outer zone radiation belt electron flux is highly variable and responds differently to different solar wind drivers.

Statistical Dependence of EMIC Wave Scattering on Wave and Plasma Parameters

Graphic image of Electromagnetic Ion Cyclotron (EMIC) waves
Thursday, July 16, 2020

A recent statistical study (Qin et al., 2018) has suggested that not all electromagnetic ion cyclotron (EMIC) waves can scatter relativistic electrons. However, knowledge of the factors that influence the EMIC wave scattering efficiency is still limited in observations.

Statistical Dependence of EMIC Wave Scattering on Wave and Plasma Parameters

Graphic image of H+ band Electromagnetic Ion Cyclotron (EMIC) waves diagram
Friday, April 24, 2020

A recent statistical study has suggested that not all electromagnetic ion cyclotron (EMIC) waves can scatter relativistic electrons. However, knowledge of the factors that influence the EMIC wave scattering efficiency is still limited in observations.

Simulation of Prompt Acceleration of Radiation Belt Electrons during the 16 July 2017 storm

Graph depicting a comparison of simulated and measured fluxes
Wednesday, December 11, 2019

Patel et al. observe that when an interplanetary shock launched from the Sun arrives at Earth, it compresses the dayside magnetic field and an impulse in electric and magnetic field propagates as a characteristic wave mode inside the magnetosphere toward the nightside.

Pitch angle scattering of energetic electrons by bursty bulk flows (BBFs)

Pitch angle scattering of electrons in high resolution LFM fields
Tuesday, November 13, 2018

Mary Hudson and others have studied field line curvature scattering by the magnetic field structure associated with Bursty Bulk Flows (BBFs), using simulated output fields from the Lyon‐Fedder‐Mobarry (LFM) global magnetohydrodynamic (MHD) code for specified solar wind input.

Mary Hudson

Submitted by whawkins on August 26, 2013 - 4:20pm

Professor Mary Hudson, from Dartmouth College, Department of Physics and Astronomy, has been an HAO affiliate scientist since 2010. She is a fellow of the American Geophysical Union and a recipient of their prestigious Macelwane Award.

HAO Colloquium Series presents Mary Hudson, Dartmouth College

Photograph of Mary Hudson

Modeling the radiation belt electron response to CME-driven storms: the first 9 months of the Van Allen Probes

Recent geomagnetic storms at solar maximum have produced dynamic variations in outer zone radiation belt electron flux measured in detail by the Van Allen Probe twin spacecraft,

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The National Center for Atmospheric Research is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.