Topographic shading influences cryoconite morphodynamics and carbon exchange
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 ecosys...
Published in: | Arctic, Antarctic, and Alpine Research |
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2018
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Online Access: | https://doi.org/10.1080/15230430.2017.1414463 https://doaj.org/article/a92606fba4814f9ea13b8a1a757d6187 |
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ftdoajarticles:oai:doaj.org/article:a92606fba4814f9ea13b8a1a757d6187 2023-05-15T14:14:29+02:00 Topographic shading influences cryoconite morphodynamics and carbon exchange J. M. Cook M. Sweet O. Cavalli A. Taggart A. Edwards 2018-01-01T00:00:00Z https://doi.org/10.1080/15230430.2017.1414463 https://doaj.org/article/a92606fba4814f9ea13b8a1a757d6187 EN eng Taylor & Francis Group http://dx.doi.org/10.1080/15230430.2017.1414463 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2017.1414463 https://doaj.org/article/a92606fba4814f9ea13b8a1a757d6187 Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) biogeochemistry carbon cycling biocryomorphology cellular automata Environmental sciences GE1-350 Ecology QH540-549.5 article 2018 ftdoajarticles https://doi.org/10.1080/15230430.2017.1414463 2022-12-31T07:37:05Z 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. Article in Journal/Newspaper Antarctic and Alpine Research Arctic Ice Sheet Directory of Open Access Journals: DOAJ Articles Arctic, Antarctic, and Alpine Research 50 1 S100014 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
biogeochemistry carbon cycling biocryomorphology cellular automata Environmental sciences GE1-350 Ecology QH540-549.5 |
spellingShingle |
biogeochemistry carbon cycling biocryomorphology cellular automata Environmental sciences GE1-350 Ecology QH540-549.5 J. M. Cook M. Sweet O. Cavalli A. Taggart A. Edwards Topographic shading influences cryoconite morphodynamics and carbon exchange |
topic_facet |
biogeochemistry carbon cycling biocryomorphology cellular automata Environmental sciences GE1-350 Ecology QH540-549.5 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
J. M. Cook M. Sweet O. Cavalli A. Taggart A. Edwards |
author_facet |
J. M. Cook M. Sweet O. Cavalli A. Taggart A. Edwards |
author_sort |
J. M. Cook |
title |
Topographic shading influences cryoconite morphodynamics and carbon exchange |
title_short |
Topographic shading influences cryoconite morphodynamics and carbon exchange |
title_full |
Topographic shading influences cryoconite morphodynamics and carbon exchange |
title_fullStr |
Topographic shading influences cryoconite morphodynamics and carbon exchange |
title_full_unstemmed |
Topographic shading influences cryoconite morphodynamics and carbon exchange |
title_sort |
topographic shading influences cryoconite morphodynamics and carbon exchange |
publisher |
Taylor & Francis Group |
publishDate |
2018 |
url |
https://doi.org/10.1080/15230430.2017.1414463 https://doaj.org/article/a92606fba4814f9ea13b8a1a757d6187 |
genre |
Antarctic and Alpine Research Arctic Ice Sheet |
genre_facet |
Antarctic and Alpine Research Arctic Ice Sheet |
op_source |
Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) |
op_relation |
http://dx.doi.org/10.1080/15230430.2017.1414463 https://doaj.org/toc/1523-0430 https://doaj.org/toc/1938-4246 1523-0430 1938-4246 doi:10.1080/15230430.2017.1414463 https://doaj.org/article/a92606fba4814f9ea13b8a1a757d6187 |
op_doi |
https://doi.org/10.1080/15230430.2017.1414463 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
50 |
container_issue |
1 |
container_start_page |
S100014 |
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1766286923863687168 |