Plasma

Data-Driven Ensemble Modeling of Equatorial Ionospheric Electrodynamics

Graphic depicting root-mean-square difference of the plasma drift
Thursday, February 4, 2021

A Case Study During a Minor Storm Period Under Solar Minimum Conditions: The dayside equatorial ionospheric electrodynamics exhibits strong variability driven simultaneously by highly changeable external forcings that originate from the Sun, magnetosphere, and lower atmosphere.

Detecting the Chromospheric Footpoints of the Solar Wind

Graphic image depicting SDO and IRIS full-disk observations
Tuesday, November 24, 2020

Coronal Holes present the source of the fast solar wind. However, the fast solar wind is not unimodal—there are discrete, but subtle, compositional, velocity, and density structures that differentiate different coronal holes as well as wind streams that originate within one coronal hole.

Dynamics of Late-Stage Reconnection in the 2017 September 10 Solar Flare

Graphic depicting white light images
Tuesday, August 4, 2020

In this multi-instrument paper, we search for evidence of sustained magnetic reconnection far beyond the impulsive phase of the X8.2-class solar flare on 2017 September 10.

Equatorial Ionospheric Electrodynamics

Graphic image depicting vertical drifts over Jicamarca
Thursday, July 23, 2020

The low latitude ionosphere is one of the dynamic regions of the Earth’s upper atmosphere. The morphology of this region is controlled by radiative and coupled chemical, neutral and plasma transport processes.

On the Connection between Propagating Solar Coronal Disturbances and Chromospheric Footpoints

SDO/AIA 171Å sub-fields
Wednesday, September 14, 2016

The Interface Region Imaging Spectrograph (IRIS) provides an unparalleled opportunity to explore the (thermal) interface between the chromosphere, transition region, and the coronal plasma observed by the Atmospheric Imaging Assembly (AIA) of the Solar Dynamics Observatory (SDO).

HAO Colloquium Series presents Joseph Huba, NRL

Joseph Huba

Modeling the Plasmasphere with SAMI3: The study of the plasmasphere is extremely important to understanding space weather phenomena; for example, it plays a critical role in the regulation of radiation belt dynamics.

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