作者: Ralf Greve
关键词: Environmental science 、 Ice sheet 、 Global warming 、 Climate oscillation 、 Climatology 、 Greenland ice sheet 、 Ice-sheet model 、 Future sea level 、 Ice-albedo feedback 、 Climate commitment
摘要: Numerical computations are performed with the three-dimensional polythermal ice-sheet model SICOPOLIS in order to investigate the possible impact of a greenhouse-gas-induced climate change on the Greenland ice sheet. The assumed increase of the mean annual air temperature above the ice covers a range from Δ T= 1° C to 12° C, and several parameterizations for the snowfall and the surface melting are considered. The simulated shrinking of the ice sheet is a smooth function of the temperature rise, indications for the …