Drift-dependent changes in iceberg size-frequency distributions
Supplementary information accompanies this paper at https://doi.org/10.1038/s41598-017-14863-2 Although the size-frequency distributions of icebergs can provide insight into how they disintegrate, our understanding of this process is incomplete. Fundamentally, there is a discrepancy between iceberg...
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ftleicester:oai:lra.le.ac.uk:2381/40778 2023-05-15T15:10:24+02:00 Drift-dependent changes in iceberg size-frequency distributions Kirkham, James D. Rosser, Nick J. Wainwright, John Vann Jones, Emma C. Dunning, Stuart A. Lane, Victoria S. Hawthorn, David E. Strzelecki, Mateusz C. Szczuciński, Witold 2018-01-09T14:09:42Z https://www.nature.com/articles/s41598-017-14863-2 http://hdl.handle.net/2381/40778 https://doi.org/10.1038/s41598-017-14863-2 en eng Nature Publishing Group Scientific Reports, 2017, 7, Article number: 15991 2045-2322 https://www.nature.com/articles/s41598-017-14863-2 http://hdl.handle.net/2381/40778 doi:10.1038/s41598-017-14863-2 Copyright © the authors, 2017. 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 author and source are credited. CC-BY Cryospheric science Physical oceanography Seismology Journal Article Article 2018 ftleicester https://doi.org/10.1038/s41598-017-14863-2 2019-03-22T20:24:09Z Supplementary information accompanies this paper at https://doi.org/10.1038/s41598-017-14863-2 Although the size-frequency distributions of icebergs can provide insight into how they disintegrate, our understanding of this process is incomplete. Fundamentally, there is a discrepancy between iceberg power-law size-frequency distributions observed at glacial calving fronts and lognormal size-frequency distributions observed globally within open waters that remains unexplained. Here we use passive seismic monitoring to examine mechanisms of iceberg disintegration as a function of drift. Our results indicate that the shift in the size-frequency distribution of iceberg sizes observed is a product of fracture-driven iceberg disintegration and dimensional reductions through melting. We suggest that changes in the characteristic size-frequency scaling of icebergs can be explained by the emergence of a dominant set of driving processes of iceberg degradation towards the open ocean. Consequently, the size-frequency distribution required to model iceberg distributions accurately must vary according to distance from the calving front. The study was supported by Polish National Science Centre grant no. 2011/01/B/ST10/01553. Seismic equipment was provided by the Natural Environment Research Council Geophysical Equipment Facility, SEIS-UK (loan number 984). The modelled tide data for Ilulissat was kindly provided by Palle Bo Nielsen at the Danish Meteorological Institute. Logistical support was provided by Arctic Station, Qeqertarsuaq. Thanks go to Antony Long and Nick Cox for inspiring the ideas that underpin this work. M.C.S. is supported by NCN FUGA Fellowship (2013/08/S/ST10/00585). Peer-reviewed Publisher Version Article in Journal/Newspaper Arctic Iceberg* Ilulissat Qeqertarsuaq University of Leicester: Leicester Research Archive (LRA) Arctic Ilulissat ENVELOPE(-51.099,-51.099,69.220,69.220) Qeqertarsuaq ENVELOPE(-56.867,-56.867,74.400,74.400) Fuga ENVELOPE(-67.100,-67.100,-68.202,-68.202) Scientific Reports 7 1 |
institution |
Open Polar |
collection |
University of Leicester: Leicester Research Archive (LRA) |
op_collection_id |
ftleicester |
language |
English |
topic |
Cryospheric science Physical oceanography Seismology |
spellingShingle |
Cryospheric science Physical oceanography Seismology Kirkham, James D. Rosser, Nick J. Wainwright, John Vann Jones, Emma C. Dunning, Stuart A. Lane, Victoria S. Hawthorn, David E. Strzelecki, Mateusz C. Szczuciński, Witold Drift-dependent changes in iceberg size-frequency distributions |
topic_facet |
Cryospheric science Physical oceanography Seismology |
description |
Supplementary information accompanies this paper at https://doi.org/10.1038/s41598-017-14863-2 Although the size-frequency distributions of icebergs can provide insight into how they disintegrate, our understanding of this process is incomplete. Fundamentally, there is a discrepancy between iceberg power-law size-frequency distributions observed at glacial calving fronts and lognormal size-frequency distributions observed globally within open waters that remains unexplained. Here we use passive seismic monitoring to examine mechanisms of iceberg disintegration as a function of drift. Our results indicate that the shift in the size-frequency distribution of iceberg sizes observed is a product of fracture-driven iceberg disintegration and dimensional reductions through melting. We suggest that changes in the characteristic size-frequency scaling of icebergs can be explained by the emergence of a dominant set of driving processes of iceberg degradation towards the open ocean. Consequently, the size-frequency distribution required to model iceberg distributions accurately must vary according to distance from the calving front. The study was supported by Polish National Science Centre grant no. 2011/01/B/ST10/01553. Seismic equipment was provided by the Natural Environment Research Council Geophysical Equipment Facility, SEIS-UK (loan number 984). The modelled tide data for Ilulissat was kindly provided by Palle Bo Nielsen at the Danish Meteorological Institute. Logistical support was provided by Arctic Station, Qeqertarsuaq. Thanks go to Antony Long and Nick Cox for inspiring the ideas that underpin this work. M.C.S. is supported by NCN FUGA Fellowship (2013/08/S/ST10/00585). Peer-reviewed Publisher Version |
format |
Article in Journal/Newspaper |
author |
Kirkham, James D. Rosser, Nick J. Wainwright, John Vann Jones, Emma C. Dunning, Stuart A. Lane, Victoria S. Hawthorn, David E. Strzelecki, Mateusz C. Szczuciński, Witold |
author_facet |
Kirkham, James D. Rosser, Nick J. Wainwright, John Vann Jones, Emma C. Dunning, Stuart A. Lane, Victoria S. Hawthorn, David E. Strzelecki, Mateusz C. Szczuciński, Witold |
author_sort |
Kirkham, James D. |
title |
Drift-dependent changes in iceberg size-frequency distributions |
title_short |
Drift-dependent changes in iceberg size-frequency distributions |
title_full |
Drift-dependent changes in iceberg size-frequency distributions |
title_fullStr |
Drift-dependent changes in iceberg size-frequency distributions |
title_full_unstemmed |
Drift-dependent changes in iceberg size-frequency distributions |
title_sort |
drift-dependent changes in iceberg size-frequency distributions |
publisher |
Nature Publishing Group |
publishDate |
2018 |
url |
https://www.nature.com/articles/s41598-017-14863-2 http://hdl.handle.net/2381/40778 https://doi.org/10.1038/s41598-017-14863-2 |
long_lat |
ENVELOPE(-51.099,-51.099,69.220,69.220) ENVELOPE(-56.867,-56.867,74.400,74.400) ENVELOPE(-67.100,-67.100,-68.202,-68.202) |
geographic |
Arctic Ilulissat Qeqertarsuaq Fuga |
geographic_facet |
Arctic Ilulissat Qeqertarsuaq Fuga |
genre |
Arctic Iceberg* Ilulissat Qeqertarsuaq |
genre_facet |
Arctic Iceberg* Ilulissat Qeqertarsuaq |
op_relation |
Scientific Reports, 2017, 7, Article number: 15991 2045-2322 https://www.nature.com/articles/s41598-017-14863-2 http://hdl.handle.net/2381/40778 doi:10.1038/s41598-017-14863-2 |
op_rights |
Copyright © the authors, 2017. 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 author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-017-14863-2 |
container_title |
Scientific Reports |
container_volume |
7 |
container_issue |
1 |
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1766341445340364800 |