Articles | Volume 11, issue 6
https://doi.org/10.5194/tc-11-2491-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tc-11-2491-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Dark ice dynamics of the south-west Greenland Ice Sheet
Andrew J. Tedstone
CORRESPONDING AUTHOR
Bristol Glaciology Centre, School of Geographical Sciences, University of Bristol, Bristol, UK
Jonathan L. Bamber
Bristol Glaciology Centre, School of Geographical Sciences, University of Bristol, Bristol, UK
Joseph M. Cook
Department of Geography, University of Sheffield, Winter Street, Sheffield, UK
Christopher J. Williamson
Bristol Glaciology Centre, School of Geographical Sciences, University of Bristol, Bristol, UK
Xavier Fettweis
Laboratory of Climatology, Department of Geography, University of Liège, Liège, Belgium
Andrew J. Hodson
Department of Geography, University of Sheffield, Winter Street, Sheffield, UK
Arctic Geology, University Centre in Svalbard, Longyearbyen, Norway
Martyn Tranter
Bristol Glaciology Centre, School of Geographical Sciences, University of Bristol, Bristol, UK
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Latest update: 14 Dec 2024
Short summary
The bare ice albedo of the south-west Greenland ice sheet varies dramatically between years. The reasons are unclear but likely involve darkening by inorganic particulates, cryoconite and ice algae. We use satellite imagery to examine dark ice dynamics and climate model outputs to find likely climatological controls. Outcropping particulates can explain the spatial extent of dark ice, but the darkening itself is likely due to ice algae growth controlled by meltwater and light availability.
The bare ice albedo of the south-west Greenland ice sheet varies dramatically between years. The...