Greenland Ice Sheet Surface Mass Loss: Recent Developments in Observation and Modeling
| Autor: | van den Broeke, Michiel, Box, Jason, Fettweis, Xavier, Hanna, Edward, Noël, Brice, Tedesco, Marco, van As, Dirk, van de Berg, Willem Jan, van Kampenhout, Leo, Sub Dynamics Meteorology, Marine and Atmospheric Research |
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| Přispěvatelé: | Sub Dynamics Meteorology, Marine and Atmospheric Research |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Global and Planetary Change
Atmospheric Science 010504 meteorology & atmospheric sciences Atmospheric circulation surface mass balance Ice stream Greenland ice sheet Climate change Albedo 010502 geochemistry & geophysics 01 natural sciences Ice-sheet model modelling Glacier mass balance Geography observations Climatology F890 Geographical and Environmental Sciences not elsewhere classified Meltwater 0105 earth and related environmental sciences |
| Zdroj: | Current Climate Change Reports, 3(4), 345. Springer International Publishing AG |
| ISSN: | 2198-6061 |
| Popis: | Surface processes currently dominate Greenland ice sheet (GrIS) mass loss. We review recent developments in the observation and modeling 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. |
| Databáze: | OpenAIRE |
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