A simple parametrization of mélange buttressing for calving glaciers
- Both ice sheets in Greenland and Antarctica are discharging ice into the ocean. In many regions along the coast of the ice sheets, the icebergs calve 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 melange with surrounding sea ice in winter. In this case, the buttressing effect of the ice melange can be considerably stronger than any buttressing 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 parametrization of ice melange buttressing which leads to an upper bound on calving rates and can be used in numerical and analytical modelling.
| Author details: | Tanja SchlemmORCiDGND, Anders LevermannORCiDGND |
|---|---|
| DOI: | https://doi.org/10.5194/tc-15-531-2021 |
| ISSN: | 1994-0416 |
| ISSN: | 1994-0424 |
| Title of parent work (English): | The Cryosphere : TC ; an interactive open access journal of the European Geosciences Union |
| Publisher: | Copernicus |
| Place of publishing: | Göttingen |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2021/02/03 |
| Publication year: | 2021 |
| Release date: | 2024/03/11 |
| Volume: | 15 |
| Issue: | 2 |
| Number of pages: | 15 |
| First page: | 531 |
| Last Page: | 545 |
| Funding institution: | Heinrich Böll foundation |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| DDC classification: | 9 Geschichte und Geografie / 91 Geografie, Reisen / 910 Geografie, Reisen |
| Peer review: | Referiert |
| Publishing method: | Open Access / Gold Open-Access |
| DOAJ gelistet | |
| License (German): |  CC-BY - Namensnennung 4.0 International |
