Seminar by Ugo Nanni, Dept of Geosciences.
Observing the subglacial hydrology network and its dynamics with a dense seismic array
Abstract: Our understanding of when, where, and under which conditions subglacial water flow favors or impedes glacier flow remains uncertain mainly because of sparse field observations. This strongly limits our capability to assess the susceptibility of glaciers and ice sheets to a future increase in meltwater input due to climate warming. Here, we overcome classic observational difficulties by establishing an innovative seismic-based approach. From dense seismic array observations, we retrieve with unprecedented detail the two-dimensional map of a subglacial hydrology network. We observe its day-to-day evolution from a cavity-like system that favors glacier flow to a channel-like system that impedes glacier flow.
It is possible to attend physically or to participate digitally at the seminar
Videolink to the lecture will be sent to the mailinglists alle@geo and geohyd-info@geo. If you want to subscribe to the geohyd-info@geo list send an email to Anita.
This lecture use Zoom | Download the Zoom Client for Meetings
About the seminar
This seminar is offered by the Section for Geography and Hydrology, Dept. of Geosciences, University of Oslo. The GEOHYD-seminars are announced as lunch seminars so bring your lunch if you want to.
The seminars are open for everyone interested, and especially students are welcome.
The Lunch Seminar Team
– Louise and Sigrid