The aim of my PhD project is to reconstruct precipitation on Svalbard the last c. 12 000 years. Arctic precipitation is one of the main controls of glacier mass balance and closely linked to changes in sea ice extent. Precipitation varies a lot in time and space and has proved challenging to reconstruct due to the lack of good proxies. By analyzing the hydrogen isotopic composition of leaf waxes extracted from lake sediments, I investigate latitudinal gradients in precipitation seasonality and humidity through time. I also explore modern water isotope systematics to better understand the mechanisms behind changes in precipitation and lake water isotopic composition. I am particularly interested in precipitation seasonality, and how we can improve our understanding of precipitation isotope proxies to infer past climate. This project will improve our understanding of Arctic precipitation variability and allow us to place recent and current climate and environmental change into a long-term context.
PhD Candidate in Quaternary geology and paleoclimate