2021
DOI: 10.3390/atmos12121569
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Greenland Ice Sheet Surface Runoff Projections to 2200 Using Degree-Day Methods

Abstract: Surface runoff from the Greenland ice sheet (GrIS) has dominated recent ice mass loss and is having significant impacts on sea-level rise under global warming. Here, we used two modified degree-day (DD) methods to estimate the runoff of the GrIS during 1950–2200 under the extensions of historical, RCP 4.5, and RCP 8.5 scenarios. Near-surface air temperature and snowfall were obtained from five Earth System Models. We applied new degree-day factors to best match the results of the surface energy and mass balanc… Show more

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“…However, in the future, we also expect that meltwater from the Greenland ice sheet increases due to increased air temperatures. In the CMIP5 RCP8.5 scenario, a 3.3-times increase in Greenland ice sheet runoff at the end of this century has been estimated 40 . Thus one expects that subglacial discharge might play an increasingly important role in the future.…”
Section: Discussionmentioning
confidence: 99%
“…However, in the future, we also expect that meltwater from the Greenland ice sheet increases due to increased air temperatures. In the CMIP5 RCP8.5 scenario, a 3.3-times increase in Greenland ice sheet runoff at the end of this century has been estimated 40 . Thus one expects that subglacial discharge might play an increasingly important role in the future.…”
Section: Discussionmentioning
confidence: 99%