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Originally posted by OneisOne
Apparently the melting ice sheet lowers the horizon, hence the light is visible earlier then expected.
From the translated page:
Thomas Posch from the Institute for Astronomy, University of Vienna completed astronomical reasons for the premature end of the polar night also made. He suggests that the observation is due to a change in the local horizon. An accelerated by the melting of the Greenland ice sheet of lower horizon appears as "by far the most obvious" explanation.
Originally posted by fltcui
reply to post by enemoplem
This is now being reported on RSOE-edis which leads me to believe that the report is valid
hisz.rsoe.hu...
SCIENTIFIC RESEARCH AND FACILITIES
Scientific researches over 250 years have made Ilulissat Icefjord and surroundings one of the best observed ice-streams in the world. A significant and unique set of glaciological records and many scientific publications have been written about the site which displays most of the surface characteristics of the Greenland ice margin clearly, compactly and accessibly.
.......
Study, especially over the last 10-20 years using aerial photography, core drilling, deep radar sounding and satellite monitoring, has been intensive.
Originally posted by Soylent Green Is People
Originally posted by fltcui
reply to post by enemoplem
This is now being reported on RSOE-edis which leads me to believe that the report is valid
hisz.rsoe.hu...
The report could be valid (at least the observation), but the OP's article also gave a perfectly reasonable explanation that does not concern a major change to the Earth's tilt, or a major change to the position of the Sun in the sky.
See my post three posts above for this explanation.
edit on 1/13/2011 by Soylent Green Is People because: (no reason given)