Astronomy Picture of the Day



Earth's Shrinking Antarctic Ice Sheet

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zorg.ch
#85066 by @ 09.03.2006 00:00 - nach oben -
Earth's Shrinking Antarctic Ice Sheet


Explanation:
Is the continent at the end of the Earth slowly melting?

For millions of years,
Antarctica,
the frozen continent at the southern end of planet Earth,
has been encased in a gigantic sheet of ice.

Recently, the
orbiting robotic GRACE satellite
has been taking sensitive measurements of the
gravity for the entire Earth, including
Antarctica.

Recent analysis of
Gravity Recovery and Climate Experiment (GRACE) data indicate that the
Antarctic
ice sheet
might have lost enough mass to cause the worlds' oceans to rise about
1.2 millimeters, on the average, from between 2002 and 2005.

Although this may not seem like much, the equivalent amount of water is about 150 trillion
liters,
equivalent to the amount of
water used by US residents
in three months.

Uncertainties in the measurement make the mass loss uncertain by about 80 trillion liters.

Pictured above is an
iceberg
that is a small part of the
Antarctic ice sheet.

Future research will likely focus on trying to better understand the data, take more data, predict future trends, and understand
possible effects of these
trends on the
future climate of our entire
home planet.




Credit & Copyright
zorg.ch
#85075 by @ 09.03.2006 13:25 - nach oben -
gits döt en skilift?
zorg.ch
#85077 by @ 09.03.2006 14:13 - nach oben -
jo, er goht gad vo dä isplatte abwärts is wasser zum tüüfschte punkt vom iisberg. denn chasch une ufe fahre dank em uftrieb. isch erscht no die länger strecki wie vom höchschte punkt bis zum wasserspiegel.
zorg.ch
#85079 by @ 09.03.2006 14:54 - nach oben -
geil! wenn gömmer?
zorg.ch
#85085 by @ 09.03.2006 15:49 - nach oben -
da wuchenend goht's nöd, wöll es isch jo GESYS-LAN.

nur fühlt sich d'gesys anschinend nüme verantwortlich, en diesbezügliche event z'mache, HÄ.
zorg.ch
#85087 by @ 09.03.2006 16:05 - nach oben -
jo voll.