2009年10月26日

Calculating on the ice

Mass loss from marginal glaciers along the Greenland and Atrantic ice sheets is known to be contributing to sea-level rise but the precise magnitude and mechanisms are unclear, making it difficult to predict its potential future contribution to sealevel.

Surface mass loss is certainly a factor.

Ice loss from faster glacier flow ― called dynamical thinning ― has been more difficult to pin down.

High-resolution satellite altimetry measurements now show that dynamical thinning is for more important and extensive than previously thought, especially at ocean margins.


### DataBace ###
nature Vol.461 837-1018 Issue no.7266 15 October 2009
Letter p.971 / Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets / H D Pritchard et al.


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