The 2019 Outstanding Student Poster and PICO (OSPP) Award is awarded to Christina Lück for the poster/PICO entitled:
Using Swarm to derive global sea level budgets (Lück, C.; Uebbing, B.; Rietbroek, R.; Kusche, J.)
Click here to download the poster/PICO file.
Christina Lück is a PhD student at the Institute for Geodesy and Geoinformation of the University of Bonn. Her research focuses on deriving a consistent time series of time-variable gravity fields and ocean mass changes. This task is particular challenging at times where no GRACE data is available and only kinematic orbits can be used to derive gravity fields.
In the awarded poster, she presented an approach to use time-variable gravity fields derived from the Swarm mission in a global fingerprint inversion. The aim of the fingerprint inversion is to split sea level changes into its individual mass-related and steric components. The results show that, if GRACE data is available, Swarm only has a minor influence on the solution. The Swarm-only inversion, which is of major interest in the GRACE/GRACE-FO gap still overestimates mass, while it underestimates the steric part. Further work will be done to adapt the approach to the coarser spatial resolution of Swarm.