HAO Research Highlights

Downscaling simulation of gravity waves
August 15, 2016

National Center for Atmospheric Research Whole Atmosphere Community Climate Model (WACCM) with ≈0.25 degree horizontal resolution can resolve gravity waves with horizontal scales down to ≈250 km.

August 8, 2016

We perform the first ever global-scale, altitude-dependent analysis of polar ionospheric conductivity variability using spectrally-resolved in-situ satellite particle measurements.  Our results show that height-integrated conductance and height-dependent conductivities are distinctly different.

The flare image in Hydrogen-alpha emission (Image courtesy of NSO).
August 5, 2016

Although listed as one of the most significant events of the last 80 years, the space weather storm of late May 1967 has been of mostly fading academic interest.

Evolution figure
July 13, 2016

In June 2013, the two scientific instruments onboard the second Sunrise mission witnessed, in detail, a small-scale magnetic flux emergence event as part of the birth of an active region.

3D simulation image
July 13, 2016

We present the first global 3D simulations of thermal convection in the oblate envelopes of rapidly-rotating solar-type stars.