Sunna is working as a doctoral researcher at the Coastal Risks and Sea-Level Rise research group at the Geography Department of Kiel University. She joined the CRSLR group during her bachelor studies (Geography) in 2017. During her master studies (Environmental Management, M.Sc) Sunna specialized on coastal dynamics, coastal (compound) flooding and on hydrodynamic modelling. She started her PhD at the group in 2021, focusing on compound flood impacts under present and future scenarios, using hydrodynamic modelling, and the flood driver interaction with the consideration of waves, mainly at a local scale.