Topic 3c - Ice sheet velocity and seasonal variation (Part 1) - using SAR to measure ice sheet velocity
For measurement of ice velocity and the related seasonal variation, the key satellite technology utilised is synthetic aperture radar or ‘SAR’.
In this video, Dr Anna Hogg provides an overview of how SAR is used for this kind of ice monitoring, and the startling dynamics revealed through the satellite data.
Featured Educators:
- Dr Anna Hogg
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Don’t forget you can download the video, transcript and take any quizzes available with the links on the right.
Optional Further Reading
Imagery
Change in glacial velocity from 2009 - 2017 showing an overall increase over time.
This image shows an ice stream and calving front
This radar image of Jakobshavn isbrae is from a set of images in summer 2015 showing a calving event
The ice velocity for the Jakobshavn Isbrae Glacier in Greenland shown as a graph overlay. The line at the top shows the ice speed veriations closer to the calving front, and the lower grey line shows the speed further inland.
The ice velocity for the Jakobshavn Isbrae Glacier in Greenland
