Cook, J.M. orcid.org/0000-0002-9270-363X, Sweet, M., Cavalli, O. et al. (2 more authors) (2018) Topographic shading influences cryoconite morphodynamics and carbon exchange. Arctic, Antarctic, and Alpine Research, 50 (1). S100014. ISSN 1523-0430
Abstract
Cryoconite holes are the most active and diverse microbial habitats on glacier and ice-sheet surfaces. In this article the authors demonstrate that the shape of cryoconite holes varies depending on ice-surface topography and that this has implications for the carbon cycling regime within. Net ecosystem production is shown to be controlled primarily by sediment thickness within holes. The authors show that irregular hole shapes are indicative of hole migration away from topographic shade, which promotes carbon fixation at the mesoscale on ice surfaces. A cellular automaton is used in conjunction with sediment-delivery experiments to show that migration is the result of simple sediment transfer processes, implying a relationship between ice-surface evolution and cryoconite biogeochemistry that has not previously been examined.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 The authors. Published with license by Taylor & Francis. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Biogeochemistry; carbon cycling; biocryomorphology; cellular automata |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Social Sciences (Sheffield) > Department of Geography (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 27 Jul 2018 08:51 |
Last Modified: | 22 Nov 2023 14:51 |
Published Version: | https://doi.org/10.1080/15230430.2017.1414463 |
Status: | Published |
Publisher: | Taylor & Francis Open |
Refereed: | Yes |
Identification Number: | 10.1080/15230430.2017.1414463 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:132752 |