有人建议,全球变暖将导致部分地区的降水南极洲。这将削减冰盖的水,防止海平面上升。然而,斜率(因此高度和体积)大陆冰盖的冰属性的限制。如果冰盖已经在其最大坡度/高度/卷(这是已知的)?不会增加更多的冰导致更多流向大海?编辑:对不起,我应该更好的解释。根据(“冰原建模”)(http://www3.geosc.psu.edu/ ~ dmb53 / DaveSTELLA /冰川冰% 20表% 20 model.pdf)“冰表现得像一个可变形的塑性材料,
这

意味着

有

关键
剪切
压力,下面


没有
应变
(变形
或
流)

会发生……如果

斜率
也是

低,

基底
剪切
应力

不会匹配

关键
剪切
压力

……但

雪
桩
,… 
flow
 will 
begin. ... 

The
 result 
of 
this 
is
 that
 a 
glacier 
has
 an 
equilibrium
 profile" I am presuming that the ice sheets are already slightly above their 
equilibrium
 profile (since they are flowing). Since the profile depends on the area and shape of the base (which is shrinking due to melting around the edges), they are already holding as much ice as possible, and adding more snow to any region will just accelerate the flow. I don't know on what timescale this occurs. (I have not tried the computer models described in the paper.)