For the rest of the day I had Sea Ice School. This is where you learn about save travel on ice. We learnt how to measure cracks, the types of cracks, making anchors, and signs to look for. It was a fantastic day and mostly out in the field. It was really great to get an understanding on how the environment works down here. The different types of cracks are caused by, tidal movement, pressure build up, movement in the ice, human impact, and where the sea ice meets the ice shelf. For save travel, If the sea ice is thinner than 76cm, then the crack must be narrower than one-third track length (that's the part of the track/wheel which has contact with the ice during travel). All interesting stuff. Out came the drill and the measuring tape, as we made numerous holes in Antarctica.
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