HAO News

HAO News

Anihid Blaisdell

A bumper crop of HAO summer interns!

Summer, 2017—We hosted twelve summer students at HAO. They worked on a range of projects, from building telescopes to employing numerical models to analyzing observations and simulation data. Meet the students and hear their stories.

Annie Maunder

Annie Maunder, A Pioneer of Solar Astronomy

If you have visited the High Altitude Observatory (HAO) at NCAR in Boulder, CO, you may recall seeing the Maunder’s original butterfly diagram. The chart resembles three butterflies traveling west. Drawn by Annie S.D. Maunder and E. Walter Maunder, it demonstrated for the first time the movement of sunspot emergence from the poles toward the equator over the sun's 11-year cycle.

Domes at MLSO

MLSO Facility gets a new dome!

After 50 years of operation, the Mauna Loa Solar Observatory received a major facelift this week. A new dome has been installed at the site. The old dome was removed Tuesday morning, January 5th, and the new dome was installed before the end of the same day.

WACCM simulation results for 4 February at 21:00 UT

Linking Terrestrial and Space Weather Using High-Resolution WACCM

For the first time, a mesoscale-resolving whole atmosphere general circulation model has been developed. This was accomplished using the National Center for Atmospheric Research Whole Atmosphere Community Climate Model with ∼0.25° horizontal resolution and 0.1 scale height vertical resolution above the middle stratosphere.

Mk4 images of the solar corona near solar maximum in Jan 2000 and solar minimum

End of an era: The Mauna Loa K-coronameter is decommissioned

The Mauna Loa Solar Observatory (MLSO) K-coronameter (Mk4), was decommissioned on August 2, 2013, to be replaced by the new COSMO K-coronagraph.

Electrical engineer, Brandon Larson, and Technician Rob Graves install the K-cor center section onto the solar spar at the NCAR Mesa Lab in Boulder

A New Coronagraph for Mauna Loa

NCAR's High Altitude Observatory (HAO) will be installing a new white light coronagraph at the Mauna Loa Solar Observatory (MLSO) in Hawaii in August of this year (2013).