Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imagery

Special issue Korean Arctic Ocean Expeditions (K-PORT) in the Northern Chukchi Sea.-- 18 pages, 13 figures, 3 tables

Detalles Bibliográficos
Autores: Hwang, Byongjun, Elosegui, Pedro, Wilkinson, Jeremy
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/123948
Acceso en línea:http://hdl.handle.net/10261/123948
Access Level:acceso abierto
Palabra clave:Arctic
Sea ice
Deformation
Strain rate
Dynamics
Fracturing
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spelling Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imageryHwang, ByongjunElosegui, PedroWilkinson, JeremyArcticSea iceDeformationStrain rateDynamicsFracturingSpecial issue Korean Arctic Ocean Expeditions (K-PORT) in the Northern Chukchi Sea.-- 18 pages, 13 figures, 3 tablesSmall-scale (~100-200 m) deformations of an Arctic sea ice floe were detected from multiple GPS-equipped buoys that were deployed on the same ice floe. Over a nine-month period three deformation events were recorded. At each case the event was of limited duration, each lasting less than a day. The events were highly compressive in nature with the area occupied by the buoy array decreasing by over half of the original area. The strain rate during the deformation, of the order of 10<sup>-5</sup>s<sup>-1</sup>, is about three orders of magnitude larger than previous estimates for brittle fracturing for cracks of about 100m in length. On the 2 day time scale, the strain rate became too small and none of the deformation events could be detected. This suggests that satellite data with longer time scales may significantly underestimate the amount of intermittent, small-scale brittle failure of total deformation. Taken as a whole, our results show the influence that large-scale wind stress can have on small-scale deformation. However, it is important to note that the impact of large-scale wind stress is also dependent on the properties of sea ice as well as on the spatial and temporal evolution of the underlying forces that influence the fracturing process. © 2015This work was partly supported by ACCESS, an European Project within the Ocean of Tomorrow call of the European Commission Seventh Framework Programme; SATICE, an European Science Foundation (ESF) PolarCLIMATE Programme project; the Marginal Ice Zone (MIZ) Programme by the Office of Naval Research (ONR), United States; the Spanish Ministry of Science and Innovation (MICINN; now MINECO); and the K-PORT (KOPRI, PM13020) Project funded by the Ministry of Oceans and Fisheries (MOF), South Korea. We acknowledge grateful support from Korea Polar Research Institute (KOPRI), South Korea, and the captain and crews of IBRV Araon during the ARA04B cruise. We also thank engineers Markus Olsson of CSIC and Shane Rodwell, Alistair James, and Bernard Hagan at SAMS for their involvement in SATICE instrument development and deployment. The TerraSAR-X imagery in this project was acquired via DLR TSX SSS project to BJH. ECMWF ERA Interim data were acquired from BADCPeer ReviewedPergamon PressEuropean CommissionEuropean Science FoundationOffice of Naval Research (US)Ministerio de Ciencia e Innovación (España)Ministry of Oceans and Fisheries (South Korea)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]20152015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/123948reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.dsr2.2015.01.007Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1239482026-05-22T06:33:51Z
dc.title.none.fl_str_mv Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imagery
title Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imagery
spellingShingle Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imagery
Hwang, Byongjun
Arctic
Sea ice
Deformation
Strain rate
Dynamics
Fracturing
title_short Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imagery
title_full Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imagery
title_fullStr Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imagery
title_full_unstemmed Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imagery
title_sort Small-scale deformation of an Arctic sea ice floe detected by GPS and satellite imagery
dc.creator.none.fl_str_mv Hwang, Byongjun
Elosegui, Pedro
Wilkinson, Jeremy
author Hwang, Byongjun
author_facet Hwang, Byongjun
Elosegui, Pedro
Wilkinson, Jeremy
author_role author
author2 Elosegui, Pedro
Wilkinson, Jeremy
author2_role author
author
dc.contributor.none.fl_str_mv European Commission
European Science Foundation
Office of Naval Research (US)
Ministerio de Ciencia e Innovación (España)
Ministry of Oceans and Fisheries (South Korea)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Arctic
Sea ice
Deformation
Strain rate
Dynamics
Fracturing
topic Arctic
Sea ice
Deformation
Strain rate
Dynamics
Fracturing
description Special issue Korean Arctic Ocean Expeditions (K-PORT) in the Northern Chukchi Sea.-- 18 pages, 13 figures, 3 tables
publishDate 2015
dc.date.none.fl_str_mv 2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/123948
url http://hdl.handle.net/10261/123948
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.dsr2.2015.01.007
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Pergamon Press
publisher.none.fl_str_mv Pergamon Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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