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Research plane Polar 5 on Arctic campaign
Date:3/27/2009

crease of ice thickness in the central Arctic which was sporadically surveyed from RV Polarstern. However, nothing is known about changes in other regions.

This project breaks new ground in many ways. An ice thickness probe, the so-called EM-Bird, which is usually dragged below a helicopter, is now operated for the first time by a fixed-wing aircraft. The EM-Bird is towed under the hull of the aircraft by means of a winch for take-off and landing. For the surveys, the probe is towed on an 80 m long rope twenty metres above the ice surface. More extensive areas can now be investigated due to the longer range of the aircraft in comparison to a helicopter.

Further measurements of the vertical distribution of meteorological parameters like wind, temperature and humidity are carried out during the campaign by means of so-called drop probes sondes. The sondes are dropped from an altitude of five kilometres. "We will considerably improve regional Arctic climate models with our investigations", explains Prof. Dr. Klaus Dethloff, physicist at the research unit Potsdam and scientific head of the project at the Alfred Wegener Institute.

In total, 30 people from four nations - six research institutes and logistic institutions (like EAI Oshawa, Arctic Kingdom Toronto) from Germany, Canada, the USA and Italy - are involved in the project. The campaign ends April 27th in Oshawa, Canada, where Polar 5 will regularly be maintained and inspected. The logistically demanding campaign with residence in four neighbouring states of the Arctic is only possible due to the close international collaboration between the partners.


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Contact: Dr. Andreas Herber
Andreas.Herber@awi.de
49-471-483-11489
Helmholtz Association of German Research Centres
Source:Eurekalert  

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