About the Mauna Loa Solar Observatory

The Mauna Loa Solar Observatory (MLSO) occupies part of the NOAA Mauna Loa research site located on the flank of Mauna Loa at an elevation of 3440 meters on the island of Hawaii. It is operated by the High Altitude Observatory, a division of the National Center for Atmospheric Research, which is located in Boulder, Colorado.

Planetary-scale Wave Impacts on the Venusian Upper Mesosphere and Lower Thermosphere

Graphic image of VTGCM temperature profiles
Wednesday, December 30, 2020

Venus’ atmosphere has a cloud layer (~40 km - ~70 km) that encompasses the whole planet that separates the lower atmosphere and upper atmosphere.

Day-to-Day Variability of Diurnal Tide in the Mesosphere and Lower Thermosphere Driven From Below

Graphic depicting migrating diurnal tidal amplitudes
Wednesday, December 16, 2020

The migrating diurnal tide (DW1) is one of the dominant wave motions in the mesosphere and lower thermosphere. It plays a crucial role in neutral atmosphere and ionosphere coupling. The DW1 can vary over a range of time scales from days to years.

Gravity-wave-perturbed wind shears derived from SABER temperature observations

Graphic depicting wind shear
Wednesday, December 16, 2020

Large wind shears around the mesopause region play an important role in atmospheric neutral dynamics and ionospheric electrodynamics.

Effective vertical diffusion by atmospheric gravity waves

Graphic image depicting effective diffusion coefficient
Wednesday, December 16, 2020

Han-Li Liu has observed that atmospheric gravity waves may transport heat and chemical species in the vertical direction.

Mausumi Dikpati Publication is Featured by AAS Nova

Photographic image of Mausumi Dikpati, senior scientist at HAO

A recent publication by Mausumi Dikpati was featured by AAS Nova in November 2020.

Congratulations to Peter Gilman, elected AAS Legacy fellow!

Photographic image of Peter Gilman

Senior Scientist Emeritus Peter Gilman has received the newly established Fellow of the American Astronomical Society (AAS) award.


Artist's conceptualization of the COSMOS observatory

The National Center for Atmospheric Research (NCAR) has received funding approval to survey prospective locations for the Coronal Solar Magnetism Observatory (COSMO).

Alfvénic thermospheric upwelling in a global geospace model

Graphic images from CHAMP satellite
Wednesday, December 2, 2020

First author, William Lotko, reveals that the CHAMP satellite orbiting near 400 km altitude near the magnetic cusp routinely traversed thermospheric density enhancements (up to 50%) that are not predicted by empirical models.


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