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Saturday, 08 December 2007 06:00
Polarstern: The multicorer - a success story
Written by Polarstern Expedition
Written Friday, 7 December
Finally: we had our first deployment. 3,000 m of water underneath. The first benthic station at 52° 2.31’ S and 0° 1.20’ W. Benthos is the seafloor, and we are investigating the life there. Finally: One sampling gear after the other was set over the side. Wind and seas were clement. Temperature just above freezing. Ideal working conditions.
We, that is Annika Henche and Gritta Veit-Köhler of the Senckenberg Institute in Wilhlemshaven and five other colleagues working with samples from the multicorer. The multicorer — MUC for short — looks like a moon lander that is sent ...
Saturday, 08 December 2007 00:36
Norwegian-US Scientific Traverse: Sampling for black carbon
Written by US-Norway Traverse
Written 6 December, 2007
3589 meters above sea level
Minimum temperature: -41 °C
One of the associated projects that we accommodate on the traverse is to collect samples for studies of concentrations of black carbon in the snow pack. Black carbon originates from the industrialized parts of the world and is transported to the Polar Regions through the atmosphere. Presence of black carbon efficiently reduces the surface albedo, i.e. how efficient the surface reflects solar radiation. The lower the albedo, the more solar energy is absorbed at the surface which in turn can reduce the albedo even more by changi...
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Saturday, 08 December 2007 00:24
Norwegian-US Scientific Traverse: A matter of perspective
Written by US-Norway Traverse
Written December 5, 2007
3585 meters above sea level
After traveling all day, tonight we set camp at a location where satellite imagery told us we would experience very different snow structure across an expanse of several kilometers. Standing outside the vehicles and looking out across the expanse of the ice sheet, on casual inspection it looked pretty much the same in all directions; very small surface roughness with evidence of shifting winds, including occasional patches of shiny wind-induced surface polish.
Yet our crevasse-detection radar had recently begun showing signs of unusual vertical fe...
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Friday, 07 December 2007 05:23
Polarstern: Hunting for big megabenthic animals
Written by Polarstern Expedition
Written Thursday, 6 December
Today is St. Nicholas Day and my birthday. Saint Nicholas has been busy during the night, and yesterday he actually came all the way from Holland and brought us beautiful stationary with expedition stamps, and on top of all that he had even written a poem!
Last night I could not wait for the morning after all, so I curiously looked at all the little presents my loved ones had smuggled into my sea chest (it was shortly after Midnight and therefore already the 6th :-). I got some really nice surprises and enjoyed them very much, and when I got on deck this morning to see what my fe...
Thursday, 06 December 2007 18:38
Japanese-Swedish Antarctic Expedition: On their way
Written by Sweden/Japan Traverse
Report no 6
Written December 5, 2007
We are on our way now with four tracked vehicles and five sledges. Our departure became delayed by a few extra days due to practical problems of various kinds. We started our traverse on December 4 and are now heading towards the Swedish station Svea. Some load adjustments will be carried out during the next few days to level the speed of the tracked vehicles. The plan is to drive to Svea and make some fuel arrangements and then go up Kibergdalen to the Polar plateau. Our science plan is unchanged but sample density and sample timing have by necessity been adjusted to the present situation.
Today we took a firn core close to the nunatak Fossilryggen and we also took snow samples for different projects. The weather ha...
Thursday, 06 December 2007 05:19
Polarstern: How to waste a night away
Written by Polarstern Expedition
Written Wednesday, 5 December
The time has finally come, we reached the first station. Yippiiieeeh... after a week of setting up the laboratories, trying to find one’s way on and below deck, fighting and winning against sea sickness and, above all, suspenseful waiting, we were quite surprised when we went on the work deck after breakfast. Like gnomes the crew has put our gear from the C deck onto the work deck with the help of cranes in the very early hours of the day.
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Wednesday, 05 December 2007 16:29
Norway-US Traverse: A splendid day to drive across the horizon
Written by US-Norway Traverse
Written December 3, 2007
3590 meters above sea level
With a sense of accomplishment, this noon we bid farewell to the packed snow and the lone temperature array transmitter, which is all that was left to mark our drilling site 91. Under a cool, cloudless sky, the horizon looked identical in all directions: flat and white, with lighter sky near the horizon fading into a deep blue straight up.
Very small patterns formed by drifted snow, less than ten centimeters high, now provide the major surface features. Such a huge expanse dominated by the smallest of features! The calm, clear, sunny day makes th...
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Wednesday, 05 December 2007 05:18
Polarstern: Waiting out the storm
Written by Polarstern Expedition
Written Tuesday, 4 December
The sixth day on Polarstern followed a stormy night with 9 to 10 Beaufort winds. Even though we are still underway to our first station, scientific work is carried out nonetheless.
Last Saturday we started with our continuous chlorophyll measurements to get an overview of phytoplankton productivity in different water masses. Every four hours, be it day or night, water samples are taken through the well hole of the ship and then filtered. The well hole is, as the name suggests, a hole in the ship which can be used to take samples of surface water. There is no danger of the ship sin...
Tuesday, 04 December 2007 18:31
Norwegian-US Traverse: Plane visit brings early Christmas
Written by US-Norway Traverse
Written December 3, 2007
3587 meters above sea level
Minimum temperature: -47 °C
Clear, sunny skies today made it possible for a long-planned flight to visit us at site 91. We said good-bye to three of the part-time traverse crew, Tom, Unni, and Torbjørn, who are heading back to their jobs and families. They were a big help and also a joy to be with, and we will miss their company as we continue the traverse toward South Pole.
Today was also a special day, almost like Christmas, for our lead mechanic, Kjetil, who received six differentials for the vehicles! Two have broken so far on the traverse, and Kjetil has been able to replace them in the field. We are all hoping that now that we have plenty of extras, they will not be needed!
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