HAO Research Highlights

A three-dimensional diagram ICON observations Indicating In-situ Ion Drift
October 22, 2021

Earth’s equatorial ionosphere exhibits significant and unpredictable day-to-day variations in density and morphology. This presents difficulties in preparing for adverse impacts on technological systems even 24 hours in advance.

Lomb-Scargle periodograms tracking geomagnetic storm data
September 30, 2021

TIMED/GUVI observed thermospheric column ∑O/N2 depletion in both hemispheres in March 2017.

Magnetic field lines
September 16, 2021

The author reviews why, after almost 8 decades, we still have a coronal heating problem.

3D magnetic eld evolution of an erupting pseudostreamer
August 13, 2021

In this study, we present a magnetic conguration of an erupting pseudostreamer observed on April 19, 2015 on the Southwest limb embedding a prominence cavity. The eruption resulted in a relatively wide CME with a round front and prominence core intersected by a sharp plume.

migrating semidiurnal tide amplitude in zonal wind
August 13, 2021

Specified Dynamics Whole Atmosphere Community Climate Model with thermosphere-ionosphere eXtension (SD-WACCMX) simulations are used to investigate the solar migrating semidiurnal tide (SW2) around September equinox at middle to high latitudes in the Northern Hemisphere.