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On the way to our final destination in South Africa we have reached much milder climatic conditions. We have definitely left the cold of the Antarctic behind us. Staying outside would normally be be nice and comfortable at these latitudes in the Indian Ocean, but another low pressure has arrived. Along with it has come very stormy winds and rough seas, making venturing out onto the decks of the Polarstern impossible.
Stuck inside, our geologists have made another interesting discovery in the lab with their parasound equipment. In one of their nightly data checks, the scientists discovered evidence of a previously unknown Seamount. until now, this oceanic mountain range has not been found by any satellite and it is not marked on any map. It was with great excitement that this...
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The dust has settled from the Ice Fest held at the University of Colorado-Boulder in early March to celebrate the start of IPY. Presentations and other resources from some of the participants are now available online, including slideshows about "Tales from Tiski," the Ice Trek expedition in 2007 to chase an ice berg off the Antarctic Peninsula, an update on the state and fate of Arctic sea ice from two of the world's leading authorities, and an overview of what we...
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Wednesday, 04 April 2007 04:31
Green polar power, tried and tested: PolarPower.org
Written by Environmental Legacy
Are you looking for green ways to power your instruments in the cold polar regions and not sure what is reliable and would work? Check out PolarPower.org! This website is funded by the United States National Science Foundation and provides a wealth of information for researchers in choosing, designing, implementing, and maintaining remote power systems in polar environments.
You can read about power systems that other researchers are currently using. For example, in Antarctica, solar and wind energy are being used at remote field camps in the Dry Valleys and on Mt. Erebus. In Alaska, as well as in Greenland, solar and wind energy are also powering instrumentation 365 days a year.
We can all gre...
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ANDRILL is a USD 30 million multinational sedimentary drilling program to recover a history of paleoenvironmental changes in Antarctica. It will guide our understanding of the speed, size and frequency of past and future glacial and interglacial changes in the Antarctic region, and test global linkages between climate changes in the Northern and Southern hemispheres.
On 16 December 2006, the ANDRILL program drilled to a new record depth of 1,285 metres below the seafloor from a site on the Ross Ice Shelf near Scott Base in Antarctica, making it the most successful Antarctic drilling program to date in terms o...
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Thursday, 29 March 2007 16:57
ANDRILL - Geological Drilling in Antarctica
Written by International Polar Foundation
ANDRILL is a USD 30 million multinational sedimentary drilling program to recover a history of paleoenvironmental changes in Antarctica. It will guide our understanding of the speed, size and frequency of past and future glacial and interglacial changes in the Antarctic region, and test global linkages between climate changes in the Northern and Southern hemispheres.
On 16 December 2006, the ANDRILL program drilled to a new record depth of 1,285 metres below the seafloor from a site on the Ross Ice Shelf near Scott Base in Antarctica, making it the most successful Antarctic drilling program to date in terms o...
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In the Windows Around the World program, we are using web cameras to collect visual images that are used as data. These images are stored in a database and can be used to see changes in day length through out the year in various places around the world. In the attached handout, I have created a matching excercise that lets students see the changes in Arctic day light and to practice using pie graphs. This worksheet is designed primarily for 4th-6th grades but it could be modified for older and younger students. If you wish to see other filmstrips, you can view them by going to the "Weather Archive" section of the site, located under the "Teachers' Resouces".
In a daily filmstrip,...
A small but nevertheless very important piece of the puzzle in the study of climatic reconstruction of the early history of the earth is Sven Kretschmer's project with his working group from the Alfred Wegener Institute in Bremerhaven. His scientific instruments include the Schwerelot and the multicorer. During the whole of this expedition ANTXXIII/9, it is these drilling instruments that make the ocean floor core drilling project possible. The exact positioning is determined by parasounding equipment.
The concentration of thorium 230 in sediment is particularly interesting to geochemists. This radioactive element is a disintegration product, and in water it is extremely insoluble, so it binds immediately to single minerals or other organic particles. In this way, thorium ...
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Monday, 26 March 2007 23:15
Discovering sediment transport on the ocean floor with thorium 230
Written by Polarstern Expedition
A small but nevertheless very important piece of the puzzle in the study of climatic reconstruction of the early history of the earth is Sven Kretschmer's project with his working group from the Alfred Wegener Institute in Bremerhaven. His scientific instruments include the Schwerelot and the multicorer. During the whole of this expedition ANTXXIII/9, it is these drilling instruments that make the ocean floor core drilling project possible. The exact positioning is determined by parasounding equipment.
The concentration of thorium 230 in sediment is particularly interesting to geochemists. This radioactive element is a disintegration product, and in water it is extremely insoluble, so it binds immediately to single minerals or other organic particles. In this way, thorium ...
The Frozen Five expedition team will be attempting to make a complete crossing of the Arctic archipelago of Svalbard from March to mid-June 2007. Our expedition team composes 5 young geoscientists (glaciology, geology, geophysics, biology, meteorology), aged 22-29 years, all with relevant Arctic experience from studying at least one year at the University of Svalbard.
The actual expedition starts on March 29 at 12:45 in Longyearbyen, the "capital" of Svalbard. The planned return date is June 14, to the same location. The route, measuring some 1,000 km, will be completed on skis using our own power. All our gear will be carried on special sledges, known as pulks. We will all pull our own sledge(s), weighing about 100 kg each. The route is divided into 5 stages, with a food...
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