The helicopter landing in the ice slowly before stationary, several scientists will eagerly para-chute, ice drilled steeped the whole ice area - ice thickness in 1.8 meters above the central CBD area, ice about 0.5 square kilometers. "We finally found may establish 'ice station" sea ice!" Standing in this piece of hard-won ice, with an average age of nearly 50 years old of six old "polar person" face the smile like a child.
"This is the first time China expedition in such a high latitude established on 'ice, carry out the oceans, standing" sea ice, atmospheric multidisciplinary8 observation on the arctic ocean, and is sure to explore the rapidly changing ice causes and effects of on global climate change make important contributions, "looking at the boundless ice field, ZhangHaiSheng said.
"Photo number to float to 85 degrees north latitude 12 points waters
China is carrying out third arctic expedition task of polar icebreaker "photo" date, 29 with drift ice into 85 degrees north latitude 12 points are continuing their waters and is scheduled to moving north.
"Photo number on August 20 afternoon along the longitude west 144 degrees north latitude direction arrived in 84 degrees 37 points after the boat drift, sea to support players for the area nearby plate-size establish long-term ice station plate-size homework. 29 morning, "photo size for 85 degrees north latitude location 12 points and nine days for over half a latitude north drift.
Atmospheric physics, Chinese academy of sciences, said researcher at the institute arctic sea ice drift ice is one of the major features of sea ice drift, the direction and speed of the dependent on wind power function. By atmospheric circulation influence, the arctic sea ice movement trend from Russia in the north Atlantic coast flow. By this trend influence, "in the photo, currently in sea area, the sea ice year-round integral to northeast direction.
But unlike previous years, "in the photo, currently in sea area, the sea ice drifted north speed faster than usual.explanation say, this is due to special atmospheric circulation, the influence of high pressure this year were clouded by Canadian basin and the coastal area of Russia over depression between the pressure gradient, resulting in a strong intervening sea ice movement speed than ever faster.
He said that in this area, the average daily drift ice usually two kilometers to 3 kilometers. But according to "photo size drifting velocity in the region, sea ice calculate this year is on an average day 6 km to 7 km speed drift, than usual average speed, which is more than twice by covering the area of special atmospheric circulation influence.
If the "photo number continue down this a atmospheric circulation direction drifting, there might be in after months from the arctic ocean drift into the north Atlantic.
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