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The deep snow. The facility is Europe's most northerly situated satellite tracking station of Svalsat. It is owned and operated by Kongsberg Satellite Services for the Norwegian Space Centre. Veronika Ekstrand, nike air max 90 pas cher homme one of its engineers, shows the group about the station, utilized by ESA and other space agencies. "A polar orbiting satellite, masking both poles, revolves about the Earth fourteen times every working day," explains Veronika. "To see a satellite as frequently as possible, it is better to be located as close to the poles as possible. At the Equator, it would only be visible once or two times a day." The Svalsat station gets, shops and relays satellite information to their operators but can also deliver commands to them, programming them to notice particular areas or phenomena. (ESA's main reception station is in Kiruna, Sweden.) ESA's eight toe monster Envisat has, for instance, trained its all weather ASAR radar instrument to adhere to the world's biggest moving surface area, the B15 giant iceberg, about the size nike air max 90 pas cher femme of Luxemburg. It split off the Antarctic shelf 5 many years in the past. "This iceberg has been drifting in the Antarctic for a number of many years," says Veronika Ekstrand, showing Envisat pictures of the 'beast' on a computer screen. "It is extremely interesting to adhere to its actions and to see the type of damage it can do." Is the look of such a massive iceberg a consequence of global warming? Scientists have differing sights. "This happens so rarely that we can't relate it to any particular climate change," states Prof. Olav Orheim, director of the Norwegian Polar Institute. His precedence is to research the Arctic Ocean, with its seasonal natural cycles and the consequences of human motion. "We are now viewing a rapid alter in the amount of snow and sea babyliss secret curl ice in the Arctic because of alterations in the climate. When the ground with much less snow becomes darker, it absorbs more photo voltaic radiation, it warms and melts even more snow," explains Prof. Orheim. "Human activity, additional to babyliss pro perfect curl the greenhouse impact, can change the local weather from short intervals air max 90 pas cher to lengthier periods between ice ages. In the long term we might have temperatures six 8 degrees centigrade greater than in the warmest intervals on Earth for the final twenty 30 million many years." Hotter temperatures also change marine currents such as the Gulf Stream, and the Polar Regions, which have a regulatory effect on the Earth's climate, are perturbed. All elements of character are affected. Animal and chicken species will migrate or disappear, as Prof. Kjetil Eiane factors out. He is a specialist in marine microbiology at the University of Arctic Sciences at Longyearbyen. He thinks that any decrease in action in the Arctic will be compensated by greater biodiversity elsewhere. "I think the influence of a shrinking ice cover in the Arctic will mainly decrease the size of the habitat for many of the truly