ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions
We describe a program that produces paleo-ice sheet reconstructions using an assumption of steady-state, perfectly plastic ice flow behaviour. It incorporates three input parameters: ice margin, basal shear stress and basal topography. Though it is unlikely that paleo-ice sheets were ever in complet...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2016-05-01
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| Series: | Geoscientific Model Development |
| Online Access: | http://www.geosci-model-dev.net/9/1673/2016/gmd-9-1673-2016.pdf |
| Summary: | We describe a program that produces paleo-ice sheet reconstructions using an
assumption of steady-state, perfectly plastic ice flow behaviour. It
incorporates three input parameters: ice margin, basal shear stress and basal
topography. Though it is unlikely that paleo-ice sheets were ever in complete
steady-state conditions, this method can produce an ice sheet without relying
on complicated and unconstrained parameters such as climate and ice dynamics.
This makes it advantageous to use in glacial-isostatic adjustment ice sheet
modelling, which are often used as input parameters in global climate
modelling simulations. We test this program by applying it to the modern
Greenland Ice Sheet and Last Glacial Maximum Barents Sea Ice Sheet and
demonstrate the optimal parameters that balance computational time and
accuracy. |
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| ISSN: | 1991-959X 1991-9603 |