Observing Glacier and Ice Sheet Dynamics

VelocityGreenland
Left: Surface flow speeds (colours) and surface crevasses (background) at the calving front of a 4km wide fast-flowing outlet glacier of the Greenland ice sheet. The velocities are derived from a terrestrial radar-interferometer and are combined with a Sentinel-2 satellite image (background). Right: Ground based radar for velocity monitoring of the glacier front. Image credit A. Walter.

The Glaciology and Geomorphodynamics Group uses and develops remote sensing methods for observing and quantifying the dynamics of glaciers, ice sheets and high mountain permafrost to better understand processes and links to climate. We use data from a large range of platforms such as satellites, UAVs (drones) and terrestrial interferometry and from a variety of sensors (optical, radar, thermal, altimetry). We investigate processes in high mountains and polar regions at a wide range of spatial and temporal resolutions, from the cm to the global scale and from minutes to multiple decades. Some examples are trends in glacier extent, surface elevation and debris cover, variability of glacier flow velocities, quantification of iceberg calving and changes in glacier forefields and rock glacier dynamics. Our process studies combine remotely sensed data with in-situ field observations and numerical modelling.

We contribute to the European Space Agencies (ESA) - CCI program (https://climate.esa.int/en/) and to global initiatives such as GLIMS (https://www.glims.org). We have also established collaborations with industrial partners such as ENVEO (https://www.enveo.at), GAMMA Remote Sensing (https://www.gamma-rs.ch) or EODC (https://eodc.eu).

Contact

Michael Zemp

 

Prof. Dr. Andreas Vieli

Head of Glaciology and Geomorphodynamics Group
University of Zurich
Department of Geography
Winterthurerstrasse 190
CH-8057 Zurich

Tel: +41 44 635 5120

andreas.vieli@geo.uzh.ch