Helicopter taking off from a crevassed area:

Helicopter taking off from a flat area:

See a real glacier calving. Notice the timer in the upper left corner showing hours and minutes:

One year in the life of a calving glacier:

One day in the life of a calving glacier:

Animation of what calving can look like:

Animation of how water at the bed can affect calving:

A helicopter ride along the edge of a calving glacier:

What does a weather station experience during a summer: