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...
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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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fttriple:oai:gotriple.eu:oai:doaj.org/article:a92606fba4814f9ea13b8a1a757d6187 2023-05-15T14:14:18+02:00 Topographic shading influences cryoconite morphodynamics and carbon exchange J. M. Cook M. Sweet O. Cavalli A. Taggart A. Edwards 2018-01-01 https://doi.org/10.1080/15230430.2017.1414463 https://doaj.org/article/a92606fba4814f9ea13b8a1a757d6187 en eng Taylor & Francis Group 1523-0430 1938-4246 doi:10.1080/15230430.2017.1414463 https://doaj.org/article/a92606fba4814f9ea13b8a1a757d6187 undefined Arctic, Antarctic, and Alpine Research, Vol 50, Iss 1 (2018) biogeochemistry carbon cycling biocryomorphology cellular automata envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.1080/15230430.2017.1414463 2023-01-22T19:11:17Z 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 Unknown Arctic, Antarctic, and Alpine Research 50 1 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
biogeochemistry carbon cycling biocryomorphology cellular automata envir geo |
spellingShingle |
biogeochemistry carbon cycling biocryomorphology cellular automata envir geo 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 envir geo |
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 |
1523-0430 1938-4246 doi:10.1080/15230430.2017.1414463 https://doaj.org/article/a92606fba4814f9ea13b8a1a757d6187 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1080/15230430.2017.1414463 |
container_title |
Arctic, Antarctic, and Alpine Research |
container_volume |
50 |
container_issue |
1 |
_version_ |
1766286842269794304 |