Core Sample and Arctic Environment Essay

1361 Words Mar 11th, 2013 6 Pages
Question 1

A) i) • A traditional Ivory ring and pin game • A polar bear approaching Willem Barent’s men, • Magnetic dip circle • Ice core sampling • The area of sea ice minimum from 1979-2008.

ii)

[pic]

iii)

Ice Core sampling: Ice core samples can be analysed and result can help scientist build a picture of climatic effects upon our environment

Engraving – A Polar bear approaching Willem Barent’s men: The arctic has had a long history with exploration and exploitation, from early European explorers in the 16th century to this day tensions regarding sovereignty of the arctic regional still exists.

The area of sea ice minimum from 1979-2008:
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Sampling the arctic ice is one such technique, scientist taking sample of the arctic ice, as seen in the photo (item 4), are able to tell us about the earths environment and how the climate has changed over a long period of time, 100’s of thousand of years. They are able to do this by testing the layers of ice build up within ice cores sampled from deep within the ice, the deeper the ice core sample the further back in time they are able to ‘see’. They can test for carbon and other atmospheric gases trapped inside tiny bubble within the ice as the layers of snow and ice builds up over centuries.

Such techniques give us a details picture of the arctic environment over a long time and this helps show how the earth’s climate has changed over the ages, revealing trends and patterns. Studying these trends and patterns, scientists are able to compare the current arctic environment and earths climate to help understand the effects of global warming on the arctic and the earth’s climate. These scientist are able to reveal some starling facts and evidence of global warming, but such evidence can be seen in satellite images collated over time revealing the dynamic nature of the arctic environment and the effects of global warming upon the arctic.

Question 2

A) It would take 1299 years for Perth to increase it’s separation from the South Pole by 1 km

1.0

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