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UP: Fachverband Umweltphysik

UP 8: Poster

UP 8.6: Poster

Mittwoch, 11. März 2026, 15:00–17:00, P1

Evaluation of UA-ICON simulations of Gravity Waves in the Middle Atmosphere for Northern Hemispheric Winter 2016 — •Arwin Marbini, Hella Garny, and Natalie Kaifler — German Aerospace Center (DLR) Oberpfaffenhofen

Gravity waves in middle atmospheric regions are poorly understood, making them a significant scientific object in atmospheric physics. Using numerical simulations, with high horizontal resolution, an understanding of their sources in stratospheric and mesospheric regions becomes a possibility. Here, we evaluate high resolution UA-ICON simulations (20 km horizontal grid size), with JAWARA reanalysis data and lidar observations.

We study the temperature and wind profiles of zonal means for a characterization of the background structure of ICON data. This reveals a warmer stratopause in the ICON simulations, compared to JAWARA.

Furthermore, we analyze temperature perturbations in comparison to the lidar observations in Sodankylä, Finland, to characterize gravity wave activity. With this we test the ability of ICON to simulate realistically gravity wave activity, a prerequisite to study their processes.

This approach aims at closing the gap in our understanding of gravity wave sources, and their influence in our atmosphere.

Keywords: Gravity Waves; UA-ICON; JAWARA; Lidar Data; Middle Atmosphere