Iceland, Mýrdalsjökull glacier, Katla volcano.
14 October 2013. Line 03, cauldrons K16, K09 and K17.
Ice cauldrons form due to geothermal activity underneath the glacier.
Aircraft: TF-FMS, equipped with a radar altimeter coupled with a kinematic GPS, achieving an absolute elevation accuracy of 3 m and internal consistency of 1-2 m.
GoPro camera fastened to the front window.
Monitoring web page: http://earthice.hi.is/monitoring_ice_cauldrons
Institute of Earth Sciences, University of Iceland