Showing posts with label Inuit.. Show all posts
Showing posts with label Inuit.. Show all posts

Friday, 17 April 2015

East Greenland an expedition. My 8th adventure from Macmillan Cancer Support, 2006.

It’s often said that Inuit’s have around one hundred words to describe snow and ice, but if you include rain in that equation then there are probably many more words in the English language for inclement weather, as our weather is just as important to us as a nation. Most of Inuit words describe the condition of the snow and ice, in very much the same way that we describe the British weather conditions. Feathery clumps of falling snow are “qanipalaat” where as an icy mist is “pujurak” and wet snow on top of ice is “putsinniq” .Since 80% of Greenland is covered in ice, the fall of snow and movement of ice affects the Inuit’s lives in every respect. Their whole lives revolve around hunting for seal on the ice flows with their dog sledges and the seasonal break up of sea ice for fishing.

The Greenland ice sheet covers 1,710,000 square kilometers (660,235 sq mi), and is nearly 3 km thick in some places. Although the huge domed icecap depresses the land mass with its weight, the highest points still rise to around 3,000km. The present ice sheet is around 110,000 years, but there has probably been ice covering the land for around 18 million years. It was at one time much thicker than it is now but with what is often referred to as global warming enough fresh water melts on the icecaps each year to cover a country the size of Germany a meter deep. Melt water collects in a number of fast flowing blue rivers high on the icecap and pours into huge mile deep holes called moulins at a rate of around 42 million litres each day.

Although summer comes for a brief few months, snow actually falls in Greenland in every month of the year. Annual precipitation is substantially heavier in the south than in the northern part of the island, which is relatively arid. Since the temperature of the inland ice mass averages only 10 degrees Fahrenheit even in July, very little of the ice is lost by melting. Instead, the snow continues to accumulate, gradually compressing into ice. Although the sun can become extremely warm on a clear day high on the icecaps and the surface of the ice melts and forms small rivulets that eventually form larger streams.  Strangely enough the surface of Greenland rises at a rate of around 5.4cm per year probably due to the heavy falls of snows which accumulates on the icecaps and form ice. In fact the whole of the earth’s history can be told by taking ice core samples though a mile of pressurized snow. Great events such as volcanic eruptions and nuclear explosions are all recorded in the layers like a quilt on a bed.