How robust are in situ observations for validating satellite-derived albedo over the dark zone of the Greenland Ice Sheet?
Sign Up to like & getrecommendations! Published in 2017 at "Geophysical Research Letters"
DOI: 10.1002/2017gl073661
Abstract: Abstract Calibration and validation of satellite-derived ice sheet albedo data require high-quality, in-situ measurements commonly acquired by up- and down-facing pyranometers mounted on automated weather stations (AWS). However, direct comparison between ground and satellite-derived albedo… read more here.
Keywords: satellite; satellite derived; greenland ice; ice sheet ... See more keywords
Algae Drive Enhanced Darkening of Bare Ice on the Greenland Ice Sheet
Sign Up to like & getrecommendations! Published in 2017 at "Geophysical Research Letters"
DOI: 10.1002/2017gl075958
Abstract: Surface ablation of the Greenland ice sheet is amplified by surface darkening caused by light-absorbing impurities such as mineral dust, black carbon, and pigmented microbial cells. We present the first quantitative assessment of the microbial… read more here.
Keywords: ice sheet; greenland ice; ice; bare ice ... See more keywords
Estimating near-surface climatology of multi-reanalyses over the Greenland Ice Sheet
Sign Up to like & getrecommendations! Published in 2021 at "Atmospheric Research"
DOI: 10.1016/j.atmosres.2021.105676
Abstract: Abstract This study uses meteorological records from Automatic Weather Stations (AWSs) to estimate the performance of global reanalysis products for monthly air temperature, relative humidity and wind speed over the Greenland Ice Sheet (GrIS). These… read more here.
Keywords: climatology; ice sheet; greenland ice; reanalysis ... See more keywords
Measuring multiple cosmogenic nuclides in glacial cobbles sheds light on Greenland Ice Sheet processes
Sign Up to like & getrecommendations! Published in 2021 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2020.116673
Abstract: Abstract The behavior of the Greenland Ice Sheet during the Pleistocene remains uncertain due to the paucity of evidence predating the Last Glacial Maximum. Here, we employ a novel approach, cosmogenic nuclide analysis of individual… read more here.
Keywords: sheet; sheet processes; greenland ice; ice sheet ... See more keywords
Dark ice in a warming world: advances and challenges in the study of Greenland Ice Sheet's biological darkening
Sign Up to like & getrecommendations! Published in 2023 at "Annals of Glaciology"
DOI: 10.1017/aog.2023.17
Abstract: The surface of the Greenland Ice Sheet is darkening, which accelerates its surface melt. The role of glacier ice algae in reducing surface albedo is widely recognised but not well quantified and the feedbacks between… read more here.
Keywords: ice; greenland ice; biological darkening; ice sheet ... See more keywords
Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Glaciology"
DOI: 10.1017/jog.2017.12
Abstract: ABSTRACT This study investigates the evolution of Greenland ice sheet flux focusing on five of the main fast flowing regions (Petermann glacier, North East Greenland Ice Stream, Kangerdlugssuaq glacier, Helheim glacier and Jakobshavn glacier) in… read more here.
Keywords: ice sheet; 20th 21st; fast flowing; greenland ice ... See more keywords
Basal seismicity of the Northeast Greenland Ice Stream
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Glaciology"
DOI: 10.1017/jog.2020.17
Abstract: Seismic studies of glaciers yield insights into spatio-temporal processes within and beneath glaciers on scales relevant to flow and deformation of the ice. These methods enable direct monitoring of the bed in ways that complement… read more here.
Keywords: basal; ice stream; greenland ice; ice ... See more keywords
Quantification of Surface Forcing Requirements for a Greenland Ice Sheet Model Using Uncertainty Analyses
Sign Up to like & getrecommendations! Published in 2019 at "Geophysical Research Letters"
DOI: 10.1029/2019gl083532
Abstract: The Greenland Ice Sheet is a substantial reservoir of almost 7 m of sea level equivalent, and on average, climate dictates 60% of its sea level contribution. Changes in ice discharge, driven by perturbations in… read more here.
Keywords: surface; ice sheet; greenland ice; ice ... See more keywords
Anomalous Circulation in July 2019 Resulting in Mass Loss on the Greenland Ice Sheet
Sign Up to like & getrecommendations! Published in 2020 at "Geophysical Research Letters"
DOI: 10.1029/2020gl087263
Abstract: Current mass loss on the Greenland Ice Sheet (GrIS) includes a significant contribution from surface runoff. The circumstances associated with melt events are important for understanding the global sea level contribution of the GrIS. In… read more here.
Keywords: mass loss; circulation; mass; loss greenland ... See more keywords
Isolated Cavities Dominate Greenland Ice Sheet Dynamic Response to Lake Drainage
Sign Up to like & getrecommendations! Published in 2021 at "Geophysical Research Letters"
DOI: 10.1029/2021gl094762
Abstract: Seasonal variability in the Greenland Ice Sheet's (GrIS) sliding speed is regulated by the response of the subglacial drainage system to meltwater inputs. However, the importance of channelization relative to the dewatering of isolated cavities… read more here.
Keywords: greenland ice; drainage; ice sheet; isolated cavities ... See more keywords
Greenland Ice Sheet Ice Slab Expansion and Thickening
Sign Up to like & getrecommendations! Published in 2023 at "Geophysical Research Letters"
DOI: 10.1029/2022gl100911
Abstract: We use airborne accumulation radar data acquired over the Greenland Ice Sheet between 2002 and 2018 to identify changes in ice slab extent and thickness. We show that ice slabs several meters thick were already… read more here.
Keywords: greenland ice; ice slabs; ice; ice sheet ... See more keywords