Polar Exploration. Dixie Dansercoer. Читать онлайн. Newlib. NEWLIB.NET

Автор: Dixie Dansercoer
Издательство: Ingram
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Жанр произведения: Спорт, фитнес
Год издания: 0
isbn: 9781849656290
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amazed by the survival skills of a polar fox.

      This guide is not a comprehensive travel guide to the polar regions, nor is it intended to lead you by the hand through all you have to do before setting foot on the ice. It is more an in-depth record of my accumulated experiences in almost 20 years of life-enhancing polar expeditions. I can clearly recall my first no-budget, no-knowledge, no-idea trips, when I made a long list of ‘things to do better’ in my daybook. I still come home from every expedition with a similar list – and have included most of that information in this book.

      We all like to do things in a particular way, and there are many different ways to achieve our goals. This guide aims to provide a comprehensive insight to the surprisingly complex art of preparing yourself well, with information on equipment, surviving in the cold, making camp, efficient progress on the ice, problem solving, reading nature's signals and much more. For those who have already undertaken some polar travel, this book will offer advice on different routines and will give them an opportunity to review their equipment and techniques.

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      Icebergs on their journey to nowhere

      Witnessing the incredible serenity and beauty of the polar environment should engender a great respect for this fragile region; but there are still expeditions that have left behind sleds, fuel and equipment behind, littering the wilderness, just to save time. This will only pave the way for worse behaviour by future explorers who will then feel they have even less time to achieve their goals.

      There is no place for this kind of behaviour: it is time to accept our responsibilities. Life is too short to be on a manhunt for those who don't, but as we plan our own future expeditions we should be confident that ethical respect for that arctic purity is free.

      Hoping to see you out there!

      Dixie Dansercoer

      1 INTRODUCTION

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      ‘Tropical’ waters in an icy setting. Antarctica is magical.

      The Polar Regions

      The Earth has two poles, and they are very different. Our planet's extremities are kept cold because the sun's rays hit the surface at an angle, unlike the lands around the Equator, where they collide with the Earth's surface directly and more forcefully. The white expanse of the ice-caps also deflects more than 80 per cent of the heat in these rays, while the darker landmasses, or oceans, absorb it.

      Geographically speaking – and for simplicity's sake – the areas covered in this book are, on the one hand, the Arctic Ocean and all the landmass to its south as far as the Arctic Circle, and the Antarctic continent and South Georgia on the other. Clearly, there are more places on Earth with sub-zero temperatures and wide open spaces that could very well be used for polar training, but the biggest playgrounds for polar travellers – where most of the real action takes place – are the two so-called ‘no-man's lands’: the Arctic Ocean and the Antarctic continent. Here any human activity is very difficult because of the brutal cold. Note that ‘polar regions’ are not defined merely as those with permanent snow or ice cover, as there are glaciers on and around the mountains of the world far away from the poles.

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      The Arctic

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      Antarctic polar regions (Source: ESA/AOES Medialab)

      The Arctic

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      The Arctic circle sits at 66°33′44″ North

      THE BOUNDARIES OF THE ARCTIC OCEAN

      The official definition laid down by the International Hydrographic Organisation.

       Between Greenland and West Spitzbergen – the northern limit of the Greenland Sea.

       Between West Spitzbergen and North East Land – the parallel of latitude 80° North.

       From Cape Leigh Smith to Cape Kohlsaat – the northern limit of the Barentz Sea.

       From Cape Kohlsaat to Cape Molotov – the northern limit of the Kara Sea.

       From Cape Molotov to the northern extremity of Kotelni Island – the northern limit of the Laptev Sea.

       From the northern extremity of Kotelni Island to the northern point of Wrangel Island – the northern limit of the East Siberian Sea.

       From the northern point of Wrangel Island to Point Barrow – the northern limit of the Chuckchi Sea.

       From Point Barrow to Cape Land's End on Prince Patrick Island – the northern limit of the Beaufort Sea, through the northwest coast of Prince Patrick Island to Cape Leopold M'Clintock, thence to Cape Murray (Brook Island) and along the northwest coast to the extreme northerly point; to Cape Mackay (Borden Island); through the northwesterly coast of Borden Island to Cape Malloch, to Cape Isachsen (Ellef Ringnes Island); to the northwest point of Meighen Island to Cape Stallworthy (Axel Hieberg Island) to Cape Colgate the extreme west point of Ellesmere Island; through the north shore of Ellesmere Island to Cape Columbia, thence a line to Cape Morris Jesup (Greenland).

      The Arctic, the world's smallest ocean and home to the North Pole, is primarily a thick flow of ice over frigid waters. The average size of the icepack floating on the Arctic Ocean is seven million square metres. The land that can be found in its lower latitudes is called ‘tundra’, characterised by enormous expanses of permafrost, a permanently frozen layer of earth reaching a depth between 0.6 and 4m, and occurring between latitudes 60° and 68 ° North. Greenland is also part of the Arctic, and is covered by an ice-cap that on average measures 1500m thick.

      More fish live along the edges of the Arctic Ocean than anywhere else on Earth and the average winter temperature is minus 35°C, while the average summer temperature is between 3 and 12°C.

      Politically speaking, the countries offering the opportunity for Arctic expeditions are: Canada, US, Russia, Finland, Sweden, Norway, Greenland (partially independent from Denmark) and Iceland.

      The Antarctic

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      Surrounded by frigid waters, the Antarctic continent stretches between 90° and 63° South

      Antarctica is far less complicated politically in that this independent continent is completely detached from others. In terms of the possibilities for polar exploration, South Georgia is an additional option in the southern hemisphere, in that it offers similar polar conditions, situated at latitudes 54°30’ South and 37° West.

      The Antarctic covers around 13 million km2 (varying seasonally), and on average the Antarctic continent covers 8.9 per cent of the Earth's surface. The following countries have submitted active, but not globally recognised, territorial claims: Argentina, Australia, Chile, France, New Zealand, Norway and the United Kingdom. However, these claims have little practical relevance since the signing of the Antarctic Treaty which came into effect in 1961 and sets aside Antarctica as a scientific preserve.

      Antarctica is the coldest and windiest place on Earth; its highest point is Mount Vinson at 4897m and its lowest point the Bentley Subglacial Trench at 2555m below sea level. Twice the size of Australia, it offers an enormous expanse of ice: some 95 per cent of Antarctica is covered by an ice-cap averaging 1.6km thick.

      Antarctica has no official population, language, currency or capital.

      THE ARCTIC AND THE ANTARCTIC – SIMILARITIES AND DIFFERENCES

      Environment

      Similarities