Documentation for PISM, the Parallel Ice Sheet Model


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applications:201610 [2016/10/13 22:24] (current)
Ed Bueler created by copy of future_applications:201610
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 +====== October 2016 ======
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 +| **[[http://​​science/​article/​pii/​S0921818115300916|The influence of continental shelf bathymetry on Antarctic Ice Sheet
 +response to climate forcing]]** ||
 +| **investigators**:​ | [[http://​​bart/​bart/​Welcome.html|P. Bart]], D. Mullally, and N. Golledge|
 +| **journal**:​ | [[http://​​science/​journal/​09218181|Global and Planetary Change]] |
 +Depth of water on the Antarctic continental shelf is one key factor determining the maximum possible contribution of ice shelf processes (calving and sub-shelf melting/​freezing) to ice-sheet mass balance. ​ This paper uses PISM to investigate how shelf-depth changes through geologic time might have affected Antarctic Ice Sheet (AIS) dynamics. ​ Over-deepened,​ shallow, and intermediate versions of BEDMAP2 bathymetry were combined with unmodified land elevations. ​ For climate forcing similiar to the last glacial cycle, a polar AIS surrounded by shallow and intermediate bathymetries experiences rapid grounding-line advance early during the transition from interglacial to glacial conditions. ​ The corresponding increase in mass is primarily a result of lower calving fluxes from smaller-area ice shelves. ​ In contrast, the currently over-deepened bathymetry in the same forcing generates the expected gradual advance of grounding lines.
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applications/201610.txt ยท Last modified: 2016/10/13 22:24 by Ed Bueler
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