Space Climate 7 Meeting Abstract
Role of internal waves in the energy balance of upper solar atmosphere
G Vigeesh (Leibniz-Institut für Sonnenphysik (KIS))
Internal gravity waves have been detected in the solar photosphere and are thought to contribute significantly to the total energy flux in the lower atmospheric layers. Short radiative timescales and the presence of magnetic field strongly influence their propagation to higher layers and consequently their role in the energy balance higher up in the atmosphere is still unclear. Using 3D numerical simulation, we study the generation and propagation of internal waves in model solar atmosphere representing different regions like internetwork, network, and plage. We find that the IGWs are generated in similar manner in all models in spite of the differences in the magnetic environment, but their subsequent coupling to Alfvénic waves is unlikely in a magnetic environment permeated with predominantly vertical fields. We conclude that internal waves may not play a significant role in the energy balance of chromosphere and above.
Mode of presentation: oral (Need to be confirmed by the SOC)