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Latest Alfred Wegener Institute for Polar and Marine Research Stories

Image 1 - Link Found Between Summer Arctic Sea Ice Cover And Winter Weather In Central Europe
2012-02-02 08:04:05

Even if the current weather situation may seem to speak against it, the probability of cold winters with much snow in Central Europe rises when the Arctic is covered by less sea ice in summer. Scientists of the Research Unit Potsdam of the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association have decrypted a mechanism in which a shrinking summertime sea ice cover changes the air pressure zones in the Arctic atmosphere and impacts our European winter weather....

Image 1 - Antarctic Expedition Checks CryoSat Data
2011-12-10 04:41:07

Next week marks 100 years since Roald Amundsen reached the South Pole. As a team of scientists brave the Antarctic to validate data from ESA´s CryoSat mission, it´s hard to imagine what these first intrepid explorers would have thought of today´s advances in polar science. The remote and vast expanse of the Antarctic is arguably the most hostile environment on Earth — infamously claiming the lives of Captain Robert Scott and his party all those years ago in their fated...

2011-12-02 14:34:59

The end of the last ice age and the processes that led to the melting of the northern and southern ice sheets supply basic information on changes in our climate. Although the maximum size of the ice sheet in the northern hemisphere during the last ice age is relatively well known, there is little reliable data on the dimensions of the Antarctic ice sheet. A publication appearing in the journal “Science” on 1 December now furnishes indications that the two hemispheres attained...

Image 1 - Researchers Report On Changes In Arctic Sea Ice
2011-10-06 11:09:06

In the central Arctic the proportion of old, thick sea ice has declined significantly. Instead, the ice cover now largely consists of thin, one-year-old floes. This is one of the results that scientists of the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association brought back from the 26th Arctic expedition of the research vessel Polarstern. The ship arrived at its home port of Bremerhaven at about 7 o´clock this morning. Prior to that it had covered more...

SIMS
2011-08-23 14:17:30

  You can´t get any “higher”: on 22 August 2011 at exactly 9.42 a.m. the research icebreaker Polarstern of the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association reaches the North Pole. The aim of the current expedition is to document changes in the far north. Thus, the researchers on board are conducting an extensive investigation program in the water, ice and air at the northernmost point on the Earth. The little sea ice cover makes...

2011-05-20 13:06:42

Investigations of changes in Weddell Sea habitat The research vessel Polarstern of the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association will arrive back at its homeport of Bremerhaven after a seven-month expedition on Friday, 20 May. Nearly 200 researchers from institutes in 15 countries took part in the expedition. The oceanographers on board conducted measurements showing that warming of the water in the deep Weddell Sea continues further. The observations...

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2011-05-16 11:33:49

The research aircraft Polar 5 of the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association returned to Bremerhaven from a six-week expedition in the high Arctic on May 6. Joint flights with aircraft of the European and American space agencies (ESA and NASA) were a novelty in sea ice research. Simultaneous measurements with a large number of sensors on three planes underneath the CryoSat-2 satellite led to unique data records. Furthermore, the international team...

2011-04-18 14:30:30

International studies describe current state of the Arctic coasts The coastline in Arctic regions reacts to climate change with increased erosion and retreats by half a meter per year on average. This means substantial changes for Arctic ecosystems near the coast and the population living there. A consortium of more than thirty scientists from ten countries, including researchers from the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association and from the...

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2011-03-27 11:02:14

The freshwater content of the upper Arctic Ocean has increased by about 20 percent since the 1990s. This corresponds to a rise of approx. 8,400 cubic kilometers and has the same magnitude as the volume of freshwater annually exported on average from this marine region in liquid or frozen form. This result  is published by researchers of the Alfred Wegener Institute in the journal Deep-Sea Research. The freshwater content in the layer of the Arctic Ocean near the surface controls whether...

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2011-03-14 09:15:00

Arctic-wide measurements verify rapid depletion in recent days Unusually low temperatures in the Arctic ozone layer have recently initiated massive ozone depletion. The Arctic appears to be heading for a record loss of this trace gas that protects the Earth's surface against ultraviolet radiation from the sun. This result has been found by measurements carried out by an international network of over 30 ozone sounding stations spread all over the Arctic and Subarctic and coordinated by the...


Word of the Day
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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