Third flight, 23 April

A pingo in the snow.

We headed out north-west for another sea-ice study. Unfortunately, continuous low clouds made it impossible to deploy the EM Bird this time. Instead, we probed a haze layer which the mass spectrometer detected at around 2400 m altitude. On the way back, we could see a few pingos near Tuktoyaktuk, hills created by the permafrost.