Cryosphere- Ice/ocean Interactions Flashcards
1
Q
What percentage of ice do outlet glaciers drain to the margins
A
Approx 90%
2
Q
West Antarctica is grounded ___ sea level
East Antarctica is grounded ____ sea level
A
W.A. is below SL
E.A. is above SL
3
Q
What is the marine ice sheet instability hypothesis
A
Bed below sea level
Reverse slopes- it is deeper on the interior than it is on the margins making it inherently unstable
4
Q
What is the temperature of circumpolar deep water around Antarctica and why is it warmer than the surrounding water
A
-2 degrees Celsius
Is saline so doesn’t freeze as easily which makes it warmer than surrounding water
