Topographic shading influences cryoconite morphodynamics and carbon exchange.

Hdl Handle:
http://hdl.handle.net/10545/623281
Title:
Topographic shading influences cryoconite morphodynamics and carbon exchange.
Authors:
Cook, J. M. ( 0000-0002-9270-363X ) ; Sweet, Michael J. ( 0000-0003-4983-8333 ) ; Cavalli, O.; Taggart, A.; Edwards, A.
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.
Affiliation:
University of Derby; University of Sheffield; Aberystwyth University
Citation:
Cook, J.M., Sweet, M., Cavalli, O., Taggart, A. and Edwards, A., (2018). Topographic shading influences cryoconite morphodynamics and carbon exchange. Arctic, Antarctic, and Alpine Research, 50(1), pp. 1-16
Publisher:
Taylor & Francis.
Journal:
Arctic, Antarctic, and Alpine Research.
Issue Date:
13-Mar-2018
URI:
http://hdl.handle.net/10545/623281
DOI:
10.1080/15230430.2017.1414463
Additional Links:
https://www.tandfonline.com/doi/full/10.1080/15230430.2017.1414463
Type:
Article
Language:
en
ISSN:
1523-0430; 1938-4246
Sponsors:
NA
Appears in Collections:
Environmental Sustainability Research Centre

Full metadata record

DC FieldValue Language
dc.contributor.authorCook, J. M.en
dc.contributor.authorSweet, Michael J.en
dc.contributor.authorCavalli, O.en
dc.contributor.authorTaggart, A.en
dc.contributor.authorEdwards, A.en
dc.date.accessioned2019-01-11T09:14:21Z-
dc.date.available2019-01-11T09:14:21Z-
dc.date.issued2018-03-13-
dc.identifier.citationCook, J.M., Sweet, M., Cavalli, O., Taggart, A. and Edwards, A., (2018). Topographic shading influences cryoconite morphodynamics and carbon exchange. Arctic, Antarctic, and Alpine Research, 50(1), pp. 1-16en
dc.identifier.issn1523-0430-
dc.identifier.issn1938-4246-
dc.identifier.doi10.1080/15230430.2017.1414463-
dc.identifier.urihttp://hdl.handle.net/10545/623281-
dc.description.abstractCryoconite 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.en
dc.description.sponsorshipNAen
dc.language.isoenen
dc.publisherTaylor & Francis.en
dc.relation.urlhttps://www.tandfonline.com/doi/full/10.1080/15230430.2017.1414463en
dc.rightsArchived with thanks to Arctic, Antarctic, and Alpine Researchen
dc.subjectarcticen
dc.subjectcryoconiteen
dc.titleTopographic shading influences cryoconite morphodynamics and carbon exchange.en
dc.typeArticleen
dc.contributor.departmentUniversity of Derbyen
dc.contributor.departmentUniversity of Sheffielden
dc.contributor.departmentAberystwyth Universityen
dc.identifier.journalArctic, Antarctic, and Alpine Research.en
dc.contributor.institutionDepartment of Geography, University of Sheffield, Sheffield, UK-
dc.contributor.institutionEnvironmental Sustainability Research Centre, College of Life and Natural Science, University of Derby, Derby, UK-
dc.contributor.institutionInstitute of Biological, Rural and Environmental Sciences, Aberystwyth University, Aberystwyth, UK-
dc.contributor.institutionDepartment of Geography, University of Sheffield, Sheffield, UK-
dc.contributor.institutionInstitute of Biological, Rural and Environmental Sciences, Aberystwyth University, Aberystwyth, UK-
dc.dateAccepted2016-07-13-
dc.dateAccepted2016-07-13-
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