Greenland ice sheet surface mass loss: recent developments in observation and modeling

van den Broeke, M. and Box, J. and Fettweis, X. and Hanna, E. and Noel, B. and Tedesco, M. and van As, D. and van de Berg, W. and van Kampenhaout, L. (2017) Greenland ice sheet surface mass loss: recent developments in observation and modeling. Current Climate Change Reports, 3 (4). pp. 345-356. ISSN 2198-6061

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Surface processes currently dominate Greenland ice sheet (GrIS) mass loss. We review recent developments in the observation and modelling of GrIS surface mass balance (SMB), published after the July 2012 deadline for the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR5). Since IPCC AR5 our understanding of GrIS SMB has further improved, but new observational and model studies have also revealed that temporal and spatial variability of many processes are still
poorly quantified and understood, e.g. bio-albedo, the formation of ice lenses and their impact on lateral meltwater transport, heterogeneous vertical meltwater transport (‘piping’), the impact of atmospheric circulation changes and mixed-phase clouds on the surface energy balance and the magnitude of turbulent heat exchange over rough ice surfaces. As a result, these processes are only schematically or not at all included in models that are currently used to assess and predict future GrIS surface mass loss.

Keywords:Greenland ice sheet
Subjects:F Physical Sciences > F890 Geographical and Environmental Sciences not elsewhere classified
Divisions:College of Science > School of Geography
ID Code:29209
Deposited On:11 Nov 2017 12:52

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