Meike D. W. Scherrenberg
CL Climate: Past, Present & Future
The 2024 Outstanding Student and PhD candidate Presentation (OSPP) Award is awarded to Meike D. W. Scherrenberg for the poster/PICO entitled:
Simulating the ice-sheets during the Mid-Pleistocene Transition: A dance of ice, CO2 and orbital cycles (Scherrenberg, M.; Berends, C.; van de Wal R.)
Click here to download the poster/PICO file.
Meike Scherrenberg is a PhD Candidate at the Institute for Marine and Atmospheric Research Utrecht (IMAU) at Utrecht University, the Netherlands. She is currently working under the supervision of Roderik van de Wal and Tijn Berends. Her aim is to improve our understanding of glacial cycles and the mid-Pleistocene Transition (MPT) by simulating the Northern Hemisphere using the ice-sheet model IMAU-ICE.
In this poster, we simulate the Northern Hemisphere ice sheets during the past 1.5 million years using prescribed changes in CO2 and insolation. We find that the MPT can be explained by a change in the CO2 concentrations. Before the MPT, glacial cycles are dominated by insolation maxima. After the MPT, glacial cycles are dominated by changes in insolation and CO2. Low glacial CO2 concentrations may compensate the warming at insolation maxima until the ice sheets become large and thereby unstable, which increases the length of glacial cycles.