Ana Nap

GM Geomorphology

The 2024 Outstanding Student and PhD candidate Presentation (OSPP) Award is awarded to Ana Nap for the poster/PICO entitled:

Intermediate-depth & Basal icequakes at Greenland's fastest outlet glacier (Nap, A.; Walter, F.; Wehrlé, A.; Lüthi, M. P.; van Ginkel, J.; Kneib-Walter, A.; Rousseau, H.)

Click here to download the poster/PICO file.

Ana Nap is a PhD student at the University of Zürich (UZH), Switzerland, where she utilizes glacier seismology to study the ice flow dynamics of a large Greenlandic outlet glacier. She works under the supervision of Dr. Martin Lüthi from the glaciology group at UZH and Dr. Fabian Walter from the Swiss Federal Research Institute WSL, and in addition collaborates with different seismologists from ETH Zürich.

The research Ana presented at EGU24 highlighted findings from the 2022 seismic deployment on the fast ice-stream of Sermeq Kujalleq in Greenland, also known as Jakobshavn Isbrae. The poster featured analyses of two distinct seismic events captured during this deployment, along with their implications for understanding ice flow dynamics. The first event involves intermediate-depth icequakes occurring within the glacier ice, contradicting the general assumption of viscous fluid flow in glacier modelling. The second type of events are basal events occurring at the ice-bed interface, which can provide insights into the frictional sliding regime of the glacier and its influence on flow speed.