the Expedition ARKTIS-XIX/4 of the research vessel POLARSTERN ...
the Expedition ARKTIS-XIX/4 of the research vessel POLARSTERN ...
the Expedition ARKTIS-XIX/4 of the research vessel POLARSTERN ...
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10<br />
nor<strong>the</strong>rly wind increased steadily up to Bft 8. Off <strong>the</strong> sou<strong>the</strong>rn edge <strong>of</strong> <strong>the</strong> sea ice <strong>the</strong><br />
characteristic wave height increased to about 3 m. In <strong>the</strong> late afternoon <strong>the</strong> <strong>vessel</strong><br />
started <strong>the</strong> seismic cross near waypoint 75.9 N – 07 W.<br />
The gale centre decreased only little and became nearly stationary for <strong>the</strong> next 24<br />
hours.<br />
So during <strong>the</strong> night <strong>the</strong> north-westerly wind reached force Bft 9. This was <strong>the</strong><br />
maximum registered during <strong>the</strong> entire leg. In this night <strong>the</strong> sea wave height exceeded<br />
5 m from time to time. Due to <strong>the</strong>se conditions in <strong>the</strong> morning <strong>of</strong> Oct. 4 th all Helimagflights<br />
had to be cancelled.<br />
On <strong>the</strong> last day in <strong>the</strong> operation area west <strong>of</strong> Jan Mayen weak high pressure<br />
influence caused only light north-westerly winds and sunny wea<strong>the</strong>r. Therefore all<br />
planned helicopter flights could be carried out. The <strong>research</strong> work ended early Oct.<br />
6 th . RV <strong>POLARSTERN</strong> was bound for Bergen (Norway). The gale became adult little<br />
east <strong>of</strong> Iceland on Oct. 6 th with minimum pressure close to 975 hPa and headed<br />
towards Denmark. In a distance <strong>of</strong> about 1000 km RV <strong>POLARSTERN</strong> followed this<br />
low. Due to this <strong>the</strong> wind first came only moderate from northwest to north but<br />
increased for some hours during <strong>the</strong> night to force Bft 7.<br />
RV <strong>POLARSTERN</strong> approached Bergen –pilot station in early Oct. 9 th .<br />
Fig. 1.2-1