1. Nothing ever stays in the same
place for long in terms of its GPS position – so even when we get to the pole
(ie 90’ North) we will not be there for long as the ice we are standing
on will soon move off the Pole and drift away from it.
2. The wind blows and currents move
differently over the Pole so various areas of ice are moved at different speeds
and in different directions. The pressure builds up and the ice finally breaks
apart creating leads and pressure ridges. Leads are where the ice is pulled
apart revealing the water beneath the ice – this freezes over time creating new
‘young’ ice. Pressure ridges are where the ice is either blown in different
directions or together and when the pressure overcomes the resistance large
chunks of ice break off, some of which are pushed upwards and create walls of
ice that are generally up to 2m high. There are many of these at the Pole and
these need to be circumvented or gone over as is most efficient. In fact, they
provide a very welcome break and change from the otherwise very monotonous
experience of skiing slowly in a straight line whilst pulling a 20kg sled.
From Barneo, we take a helicopter to get to 89’and start our 60 nautical mile
(about 70 normal miles see this Wikipedia link for more info) ski to the
pole. In fact we are almost certain to
ski a lot more than that. Given the large number of pressure ridges and leads
that we will come across, we will very rarely be able to ski very far in a
straight line and so will be zig zagging at best and when things get bad going
sideways or even backwards. In addition the wind will be moving the ice that we
are on – if we are lucky towards the pole and if not away from it – real mental
strength is needed when after a very tough day, you wake up the next morning to
find that overnight you have been blown back towards or even past where you
started the day before!
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