The MLSO Website has a new Gallery Page!

The Mauna Loa Solar Observatory website has a newly revamped Gallery Page to highlight interesting solar events caught by MLSO instrumentation. Each new entry will include a downloadable animated GIF file suitable for insertion into presentation slides!

Sunspots and Photospheric Dynamics

Sunspots are the most prominent manifestations of magnetic field in the visible layers of the solar atmosphere. Their origin is a dynamo process operating in the solar convection zone.

The Community Spectro-polarimetric Analysis Center (CSAC)

CSAC provides a suite of community resource tools for analysis of the precision polarization data for remote sensing of magnetic fields in the outer solar atmosphere.


HiWind was the first balloon borne Fabry-Perot interferometer designed to measure summer time polar cap thermospheric neutral winds. Thermospheric wind measurements are critically needed for space weather research. HiWind was launched June 14, 2011 from Kiruna, Sweden.

Fabry Perot Interferometer at Resolute Bay, Canada

Resolute, Canada (75N) is the site chosen for the deployment of the National Science Foundation Advance Modular Incoherent Scatter Radar (AMISR). AMISR is a state of the art phase array radar, which allows fast electronic steering of the radar beam to track fast moving auroral features.

Fabry-Perot Interferometer at Palmer, Antarctica

The Palmer station Fabry-Perot interferometer project is funded by the National Science Foundation Office of Polar Programs. The goal is to study the upper atmosphere and ionosphere over the Antarctica Peninsula. Palmer station is an year-around US Antarctica Research station located on the Anvers Island near the Antarctica Peninsula.

Fabry-Perot Interferometer at Boulder, Colorado

On March 16, 2012, a Fabry-Perot Interferometer (FPI) was installed at the NCAR Marshall field site, just to the south-east of Boulder, to observe thermospheric and mesospheric winds.

MLSO Special Observing Campaigns

HAO encourages special observation requests to maximize scientific discovery for the solar and heliospheric community. Visit MLSO's new Special Observing Campaign page to learn more about past observations and how to apply for instrument time for your own scientific needs.

Special MLSO Observing Campaigns

HAO Solar-Stellar Workshop

Graphic of calcium S index data

Dr. Philip Judge, convened the HAO Solar-Stellar Workshop on March 19-20 at the High Altitude Observatory of NCAR in Boulder.


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