HAO Research Highlights

SW2 amplitude in meridional wind
June 18, 2021

Stratosphere sudden warmings (SSWs) are strong disturbances in the high latitude, wintertime, stratospheric polar vortex.

Tie-GCM Graphic
May 28, 2021

We conducted observational and modeling studies of thermospheric composition and ionospheric total electron content (TEC) variations during two geomagnetically quiet periods (maximum Kp=1.7) at solar minimum.

Non-relativistic Land ́e g factor
May 6, 2021

We perform a detailed theoretical study of the atomic structure of ions with ns2npm ground configurations and focus on departures from LS coupling which directly affect the Land ́e g factors of magnetic dipole lines between levels of the ground terms.

Latitude-longitude distribution of percentage difference
May 4, 2021

The National Aeronautics and Space Administration Global-scale observations of the Limb and Disk (GOLD) mission observed a unique structure of thermospheric column density ratio of O to N2 (∑O/N2) during a geomagnetic storm on day of year (DOY) 130 (May 10) to DOY 132 in 2019.

A UV spectrum of α Cen A
April 21, 2021

We take a broad look at the problem of identifying the magnetic solar causes of space weather.