Mapping the internal structure Arctic pingos using ground-penetrating radar: Results from the Pingo Canadian Landmark

We interpret radar images of Ibyuk Pingo in the Pingo Canadian Landmark to show a massive ice core that is roughly 23 m below the topographic surface at the peak and extends to at least 20 m below the surrounding ground elevation. This structure differs significantly from a smaller, but mature pingo surveyed near Prudhoe Bay. The widely varying structure indicate complex formation processes that are not yet well understood.