Acoustic-gravity wave propagation characteristics in three-dimensional radiation hydrodynamic simulations of the solar atmosphere
Informazioni aggiuntive
Autori
Fleck B.,
Carlsson M.,
Khomenko E.,
Rempel M.,
Steiner O.,
Vigeesh G.
Tipo
Articolo pubblicato in rivista scientifica
Anno
2021
Lingua
Inglese
Abstract
There has been tremendous progress in the degree of realism of three- dimensional radiation magneto-hydrodynamic simulations of the solar atmosphere in the past decades. Four of the most frequently used numerical codes are Bifrost, CO5BOLD, MANCHA3D and MURaM. Here we test and compare the wave propagation characteristics in model runs from these four codes by measuring the dispersion relation of acoustic-gravity waves at various heights. We find considerable differences between the various models. The height dependence of wave power, in particular of high-frequency waves, varies by up to two orders of magnitude between the models, and the phase difference spectra of several models show unexpected features, including ensuremathpm180textdegree phase jumps. textbackslashtextbackslashThis article is part of the Theo Murphy meeting issue `High-resolution wave dynamics in the lower solar atmosphere'.
Rivista
Philosophical Transactions of the Royal Society of London Series A
Volume
379
Numero
2190
Pagina inizio
20200170
Parole chiave
irsol-conference-proceedings
