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Observing and Modeling the Sun-Earth System

What We Do

Upcoming Events

Colloquium: Development of WACCM with the non-hydrostatic MPAS-A Dynamical core - Jan 17, 2024
Colloquium: Development and Applications of Data Assimilation for Whole Atmosphere Models - Feb 7, 2024 to Feb 9, 2024
Colloquium: Exploring Solar Coronal Polarization with P-CORONA: Forward Modeling and Applications - Feb 14, 2024

Latest News

HAO team at National Society of Black Physicists meeting, Knoxville, TN, 2023

NCAR/HAO hosts booth at National Society of Black Physicists meeting

Nov 10, 2023

HAO hosted a booth at the 2023 National Society for Black Physicists meeting in Knoxville, TN. This was a great opportunity for students Marcel Corchado-Albelo and Chandler Jenkins and postdoc Kinfe Teweldebirhan Gebreegzabihar to reach out to the community on behalf of HAO and NCAR. We are grateful for the tremendous support we got from NASA PUNCH Outreach who provided a kit of their engaging tabletop activities (along with a helpful training!).  

Cool effect when trying to capture the eclipse through the telescope.

Annular Eclipse Expedition at Hovenweep

Nov 3, 2023

On 14 October 2023, a captivating annular eclipse graced the skies from Oregon to Texas in the U.S. It was a privilege to not only witness this celestial spectacle but also engage with a curious audience that included a team of solar physicists from both the High Altitude Observatory at NCAR and the National Solar Observatory. Visiting students and/or voluntary collaborators were also among the spectators.

Butterfly diagram

HMI Science Nuggets features: Rossby waves and the organization of photospheric magnetic fields

Oct 6, 2023

Breno Raphaldini, Mausumi Dikpati, and Scott W. McIntosh are highlighted in the HMI Science Nuggets. Helioseismic and Magnetic Imager (HMI) magnetic field synoptic maps are used to evaluate the magnetic field structures’ organization and propagation as a function of time and latitude. It is demonstrated that the organization of longitudinal structures observed on synoptic maps is proportional to the level of activity at given latitudes.

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Latest Research Highlights

Rempel model image of Sunspots, publication highlighted by NOVA

Comprehensive Radiative MHD Simulations of Eruptive Flares above Collisional Polarity Inversion Lines

Oct 31, 2023

Matthias Rempel, Georgios Chintzoglou, Mark C. M. Cheung, Yuhong Fan, and Lucia Kleint—Solar flares are bursts of high-energy radiation that are associated with sunspots. NOVA highlights this newly published research that uses models to study what happens when sunspots collide and under what conditions these collisions cause solar flares.

Solar Orbiter EUI revelations

Steadiness of coronal heating

Oct 23, 2023

Philip Judge evaluates images from the Solar Orbiter spacecraft to determine the steadiness of coronal heating. The widely-held belief that the outer atmosphere of the Sun is in a continuous state of magnetic turmoil is pitted against the EUI data with very illuminating results.

Andy Skumanich at the 75th HAO anniversary celebration

My Rewarding Life in Science

Oct 6, 2023

This fascinating memoir covers the scientific life of Dr. Andrew Skumanich, starting with his family’s background and their immigration to the US. It continues with Andy's childhood, early education, his influential introduction to science, and finally his illuminating career, which started at Los Alamos Scientific Laboratory in the 1950s and then continued in solar physics at the High Altitude Observatory (National Center for Atmospheric Research).

More Highlights >>

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This material is based upon work supported by the National Center for Atmospheric Research, a major facility sponsored by the National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.