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| Titel |
Modeling the retreat of the Jakobshavn Glacier from the LIA and into the future |
| VerfasserIn |
Nadine Steiger, Kerim Hestnes Nisancioglu, Henning Åkesson, Faezeh Maghami Nick |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250138560
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| Publikation (Nr.) |
 EGU/EGU2017-1616.pdf |
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| Zusammenfassung |
| Many marine-terminating glaciers on Greenland have experienced rapid retreat and
acceleration during the last decades, coinciding with increased air and ocean temperatures.
Destabilized marine-terminating glaciers have been capable of discharging vast
amounts of ice into the ocean, contributing significantly to sea-level rise. In order
to conduct prospective simulations of the glaciers’ development and their future
contribution to sea-level rise, it is crucial to understand the dynamics and triggers of the
past retreat, as well as the relative importance of the external forcing versus fjord
geometry.
Using an idealized numerical flowband model1,2, we are able to reproduce the documented
retreat of the Jakobshavn Glacier, western Greenland, since the Little Ice Age (LIA). Based
on the results from the hindcast experiments, we investigate the relative role of climate
forcing and fjord geometry on glacier stability and assess the potential for non-linear retreat
in the coming 200 years.
References: [1] Nick et al. 2009, Nature Geoscience, doi:10.1038/ngeo394. [2] Nick et al.
2013, Nature, doi:10.1038/nature12068 |
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