کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6430636 | 1634804 | 2012 | 9 صفحه PDF | دانلود رایگان |
A flowline ice sheet model is coupled to a box model for cavity circulation and configured for the Pine Island Glacier. An ensemble of 5000 simulations are carried out from 1900 to 2200 with varying inputs and parameters, forced by ocean temperatures predicted by a regional ocean model under the A1B 'business as usual' emissions scenario. Comparison is made against recent observations to provide a calibrated prediction in the form of a 95% confidence set. Predictions are for monotonic (apart from some small scale fluctuations in a minority of cases) retreat of the grounding line over the next 200Â yr with huge uncertainty in the rate of retreat. Full collapse of the main trunk of the PIG during the 22nd century remains a possibility.
⺠Coupled ice sheet-cavity circulation flowline model. ⺠Statistical framework using “confidence set” for calibrated prediction. ⺠Predict large uncertainty in Pine Island Glacier behaviour to year 2200. ⺠Full collapse of Pine Island Glacier main trunk soon after 2100 is not ruled out.
Journal: Earth and Planetary Science Letters - Volumes 333â334, 1 June 2012, Pages 191-199