Unfortunately, despite the rapid growth of interest in GrIS mass loss and its impacts, we still lack the ability to confidently predict the rate of future mass loss and the full impacts of this mass loss on the globe. Observations also indicate that the impact of a melting GrIS extends beyond sea-level rise, including changes to ocean properties and circulation, nutrient and sediment cycling, and ecosystem function. Mass loss from the Greenland ice sheet (GrIS) has increased over the last two decades in response to changes in global climate, motivating the scientific community to question how the GrIS will contribute to sea-level rise on timescales that are relevant to coastal communities. We suggest that this buoyancy-driven mechanism for calving may be common elsewhere in Greenland and could be a first-order control on the ice sheet's future contribution to sea-level rise. We find that during these two summers dynamic mass loss at Helheim Glacier was dominated by calving events exceeding 1 km(3) that were the result of buoyant flexure and the propagation of basal crevasses. Our digital elevation models are derived from stereo terrestrial photography taken over the summers of 20. Here we present a record of daily digital elevation models from the calving margin of Greenland's Helheim Glacier at a high spatial resolution. However, present physical models remain a coarse approximation of real calving mechanisms because models are poorly constrained by sparse glacier geometry observations(5). The largest contributions from the main outlet glaciers of the Greenland ice sheet to sea-level rise over the next two centuries have been projected to be dynamic in origin, that is, driven by glacier flow and calving(4). James 2 Tavi Murray 0000-0001-6714-6512 3 Dominic Vella 4 0029287-02122016123727.pdf Wagneretal2016GeophysicalResearchLetters.pdf T12:37:27.7170000 Output 1156309 application/pdf Version of Record true T00:00:00.Iceberg calving accounts for a significant proportion of annual mass loss from marine-terminating glaciers(1,2) and may have been a factor in the rapid demise of ancient ice sheets(3). T11:06:22.7697577 v2 29287 On the role of buoyant flexure in glacier calving 8d6e71df690e725cd44191006dac31da 0000-0001-6714-6512 Tavi Murray Tavi Murray true false SGE Journal Article Geophysical Research Letters 43 1 232 240A American Geophysical Union (AGU) 0094-8276 1944-8007 glacier calving elastic beam theory floating ice shelves/glacier tongues 16 1 2016 10.1002/2015gl067247 COLLEGE NANME Geography COLLEGE CODE SGE Swansea University T11:06:22.7697577 T12:10:21.8016086 College of Science Geography Till J. Swansea University Medical School (551).Swansea University Medical School (6859).School of Business and Economics Administration (9).Operations Management and Entrepreneurship (286).Human Resource Management and Organisational Studies (57).Research Engagement and Innovation Services (129).Legal Practice and Graduate Diploma Law (7).Hillary Rodham Clinton School of Law (4).Hillary Rodham Clinton School of Law (1551).Swansea Centre for Health Economics (138).College of Human and Health Sciences (205).Centre for Social Work and Social Care Research (60).College of Human and Health Sciences (4868).Research Institute for Arts and Humanities (2).Modern Languages, Translation and Interpreting (58).Languages, Translation and Communication (105).Languages, Translation And Communication (37).English Literature and Creative Writing (130).English Language and Applied Linguistics (59).Classics, Ancient History and Egyptology (250).
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