Evaluating the Impact of Data Assimilation on Atmospheric Tidal Modes

This study addresses the challenge of accurately capturing the dynamics of Earth’s upper atmosphere by exploring how data assimilation of space-based far ultraviolet (FUV) dayglow observations influence the representation of tidal modes in a whole atmosphere model. This poster presents comparisons of Whole Atmosphere Model (WAM) modeling results with and without ensemble data assimilation of GOLD FUV disk measurements of N2 Lyman-Birge-Hopfield (LBH) bands and discusses how a prior work by Cantrall (PhD thesis, 2022) can be extended with the help of different covariance localization techniques.