English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Dark ice in a warming world: advances and challenges in the study of Greenland Ice Sheet's biological darkening

Authors

Halbach,  Laura
External Organizations;

Chevrollier,  Lou-Anne
External Organizations;

Cook,  Joseph M.
External Organizations;

Stevens,  Ian T.
External Organizations;

Hansen,  Martin
External Organizations;

Anesio,  Alexandre M.
External Organizations;

/persons/resource/benning

Benning,  Liane G.
3.5 Interface Geochemistry, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Tranter,  Martyn
External Organizations;

External Ressource
No external resources are shared
Fulltext (public)

5015945.pdf
(Publisher version), 2MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Halbach, L., Chevrollier, L.-A., Cook, J. M., Stevens, I. T., Hansen, M., Anesio, A. M., Benning, L. G., Tranter, M. (2023): Dark ice in a warming world: advances and challenges in the study of Greenland Ice Sheet's biological darkening. - Annals of Glaciology, 63, 87-89, 95-100.
https://doi.org/10.1017/aog.2023.17


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5015945
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 the algae and the weathering crust remain poorly understood. In this letter, we summarise recent advances in the study of the biological darkening of the Greenland Ice Sheet and highlight three key research priorities that are required to better understand and forecast algal-driven melt: (i) identifying the controls on glacier ice algal growth and mortality, (ii) quantifying the spatio-temporal variability in glacier ice algal biomass and processes involved in cell redistribution and (iii) determining the albedo feedbacks between algal biomass and weathering crust characteristics. Addressing these key research priorities will allow us to better understand the supraglacial ice-algal system and to develop an integrated model incorporating the algal and physical controls on ice surface albedo.