This map of Antarctica shows the flow of ice off the continent
the blue to pink flows at 0-10 m per year where the red to orange flows at 10-200 m per year
the yellow to white flows at 200 to 1000 m a year.
The flow rate seems to be speeding up and the scientists here are trying to find out whether it is due to global warming or just a natural fluctuation.
The ice is over 2 miles thick in places and for each meter that it progresses to the sea the ice at the coast breaks of into the sea and melts.
How will this affect the planet ?
discovery.com
news.discovery.com
Greenland Ice Motion Mapped: Big Pic (Earth News) Discovery News. 10.7.2012. Sarah Simpson, Image courtesy Eric Rignot and Jérémie Mouginot. Viitattu 19.7.2012. (englanniksi)
E. Rignot, J. Mouginot,B. Scheuch: Ice Flow of the Antarctic Ice Sheet (DOI: 10.1126/science.1208336) Science 9 September 2011 Vol. 333 no. 6048 pp. 1427–1430. Published Online August 18 2011. Science. Viitattu 19.7.2012. (englanniksi)
Ice Velocity Map (Caption: Antarctic ice velocity derived from ALOS PALSAR, Envisat ASAR, RADARSAT- 2 and ERS-1/2 satellite radar interferometry color coded on a logarithmic scale and over- laid on a MODIS mosaic of Antarctica.) 2011. Rignot Research Group. Viitattu 19.7.2012.
