A simple model of mélange buttressing for calving glaciers [post]

Tanja Schlemm, Anders Levermann
2020 unpublished
<p><strong>Abstract.</strong> Both ice sheets on Greenland and Antarctica are discharging ice into the ocean. In many regions along the coast of the ice sheets, the icebergs calf into a bay. If the addition of icebergs through calving is faster than their transport out of the embayment, the icebergs will be frozen into a mélange with surrounding sea ice in winter. In this case, the buttressing effect of the ice mélange can be considerably stronger than any
more » ... tressing by mere sea ice would be. This in turn stabilizes the glacier terminus and leads to a reduction in calving rates. Here we propose a simple but robust buttressing model of ice mélange which can be used in numerical and analytical modeling.</p>
doi:10.5194/tc-2020-50 fatcat:ilakrlt755gzbgxpesbzdiawvy