HAO is celebrating Spiro Antiochos, a pioneer in solar physics whom developed transformative theories that have led to many breakthroughs in fundamental processes in the solar atmosphere. This event will convene from Thursday, February 29 to Friday, March 1, 2024 at our CG1 auditorium. Even if you don't know Spiro, there will be lots of great presentations on important solar physics topics and opportunities to interact with external scientists and students.
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!).
Latest Research Highlights
Climate Change in the Thermosphere and Ionosphere From the Early Twentieth Century to Early Twenty‐First Century Simulated by the Whole Atmosphere Community Climate Model—eXtended
Authors Joseph McInerney, Liying Qian, Han-Li Liu, Stanley Solomon, and Susan Nossal decided to apply the WACCM-X climate model to the upper atmosphere for the decades from the 1920s to 2010s. This type of modeling application will be useful to predict what will happen in the century ahead as greenhouse gases increase and humans make efforts to reverse the increase.
Hanli Liu, Peter Lauritzen, and Francis Vitt use the high-resolution whole atmosphere model to study small-scale wave propagation from the lower atmosphere into the thermosphere. Using this high-resolution model, which can partially resolve the small-scale waves, they can directly quantify the force exerted by these waves on the general circulation in the thermosphere.
Steven Cranmer, Rohit Chhiber, Chris Gilly, Iver Cairns, Robin Colaninno, David McComas, Nour Raouafi, Arcadi Usmanov, Sarah Gibson, Craig DeForest review the properties of Alfvén surface and discuss its importance in models of solar wind acceleration, angular momentum transport, MHD waves and turbulence, and the geometry of closed coronal loops. Simulations results and data analysis techniques are used to determine the location of the Alfvén surface.