By the same authors

Basal roughness of the Institute and Möller Ice Streams, West Antarctica: process determination and landscape interpretation

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Basal roughness of the Institute and Möller Ice Streams, West Antarctica : process determination and landscape interpretation. / Rippin, David; Bingham, Robert; Jordan, Tom; Wright, Andrew; Corr, Hugh F. J.; Ferraccioli, F ; Le Brocq, Anne; Ross, Neil; Siegert, Martin J.

In: Geomorphology, Vol. 214, 01.06.2014, p. 139-147.

Research output: Contribution to journalArticle

Harvard

Rippin, D, Bingham, R, Jordan, T, Wright, A, Corr, HFJ, Ferraccioli, F, Le Brocq, A, Ross, N & Siegert, MJ 2014, 'Basal roughness of the Institute and Möller Ice Streams, West Antarctica: process determination and landscape interpretation', Geomorphology, vol. 214, pp. 139-147. https://doi.org/10.1016/j.geomorph.2014.01.021

APA

Rippin, D., Bingham, R., Jordan, T., Wright, A., Corr, H. F. J., Ferraccioli, F., ... Siegert, M. J. (2014). Basal roughness of the Institute and Möller Ice Streams, West Antarctica: process determination and landscape interpretation. Geomorphology, 214, 139-147. https://doi.org/10.1016/j.geomorph.2014.01.021

Vancouver

Rippin D, Bingham R, Jordan T, Wright A, Corr HFJ, Ferraccioli F et al. Basal roughness of the Institute and Möller Ice Streams, West Antarctica: process determination and landscape interpretation. Geomorphology. 2014 Jun 1;214:139-147. https://doi.org/10.1016/j.geomorph.2014.01.021

Author

Rippin, David ; Bingham, Robert ; Jordan, Tom ; Wright, Andrew ; Corr, Hugh F. J. ; Ferraccioli, F ; Le Brocq, Anne ; Ross, Neil ; Siegert, Martin J. / Basal roughness of the Institute and Möller Ice Streams, West Antarctica : process determination and landscape interpretation. In: Geomorphology. 2014 ; Vol. 214. pp. 139-147.

Bibtex - Download

@article{fe88c0f001294c81adccfedde7b8cfbe,
title = "Basal roughness of the Institute and M{\"o}ller Ice Streams, West Antarctica: process determination and landscape interpretation",
abstract = "We present a detailed analysis of bed roughness beneath Institute and M{\"o}ller Ice Streams, west Antarctica, using radio-echo sounding data (RES) acquired in the austral summer of 2010/11. We assess roughness using a two-parameter approach and also assess the directionality of roughness relative to present-day ice flow. Our work highlights the wealth of additional information that resides in analyses of bed roughness. Employing these multiple approaches we show that spatially variable roughness patterns are partly a consequence of the ability of flowing ice not only to smooth the bed but also to redistribute and remove sediments, and to do this along-flow. Accordingly, we identify some fast-flow tributaries underlain by topography that has been streamlined and other tributaries that are underlain by sediments. We also identify locations that are currently protected from erosion, but where more ancient erosion may once have occurred. We conclude that detailed roughness analysis is a useful tool for landscape interpretation; and we suggest that the roughness of an ice-sheet's bed should be viewed not only as the consequence of ancient marine sedimentation, but also as a product of more contemporary erosion and redistribution of sediments, as well as bedrock-smoothing that is ongoing because of continuing dynamic activity. In this way, basal roughness has the potential to evolve continually with ice sheet form and flow, and should not be viewed simply as a snapshot of either present-day or palaeo-basal conditions.",
author = "David Rippin and Robert Bingham and Tom Jordan and Andrew Wright and Corr, {Hugh F. J.} and F Ferraccioli and {Le Brocq}, Anne and Neil Ross and Siegert, {Martin J.}",
year = "2014",
month = "6",
day = "1",
doi = "10.1016/j.geomorph.2014.01.021",
language = "English",
volume = "214",
pages = "139--147",
journal = "Geomorphology",
issn = "0169-555X",
publisher = "Elsevier",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Basal roughness of the Institute and Möller Ice Streams, West Antarctica

T2 - process determination and landscape interpretation

AU - Rippin, David

AU - Bingham, Robert

AU - Jordan, Tom

AU - Wright, Andrew

AU - Corr, Hugh F. J.

AU - Ferraccioli, F

AU - Le Brocq, Anne

AU - Ross, Neil

AU - Siegert, Martin J.

PY - 2014/6/1

Y1 - 2014/6/1

N2 - We present a detailed analysis of bed roughness beneath Institute and Möller Ice Streams, west Antarctica, using radio-echo sounding data (RES) acquired in the austral summer of 2010/11. We assess roughness using a two-parameter approach and also assess the directionality of roughness relative to present-day ice flow. Our work highlights the wealth of additional information that resides in analyses of bed roughness. Employing these multiple approaches we show that spatially variable roughness patterns are partly a consequence of the ability of flowing ice not only to smooth the bed but also to redistribute and remove sediments, and to do this along-flow. Accordingly, we identify some fast-flow tributaries underlain by topography that has been streamlined and other tributaries that are underlain by sediments. We also identify locations that are currently protected from erosion, but where more ancient erosion may once have occurred. We conclude that detailed roughness analysis is a useful tool for landscape interpretation; and we suggest that the roughness of an ice-sheet's bed should be viewed not only as the consequence of ancient marine sedimentation, but also as a product of more contemporary erosion and redistribution of sediments, as well as bedrock-smoothing that is ongoing because of continuing dynamic activity. In this way, basal roughness has the potential to evolve continually with ice sheet form and flow, and should not be viewed simply as a snapshot of either present-day or palaeo-basal conditions.

AB - We present a detailed analysis of bed roughness beneath Institute and Möller Ice Streams, west Antarctica, using radio-echo sounding data (RES) acquired in the austral summer of 2010/11. We assess roughness using a two-parameter approach and also assess the directionality of roughness relative to present-day ice flow. Our work highlights the wealth of additional information that resides in analyses of bed roughness. Employing these multiple approaches we show that spatially variable roughness patterns are partly a consequence of the ability of flowing ice not only to smooth the bed but also to redistribute and remove sediments, and to do this along-flow. Accordingly, we identify some fast-flow tributaries underlain by topography that has been streamlined and other tributaries that are underlain by sediments. We also identify locations that are currently protected from erosion, but where more ancient erosion may once have occurred. We conclude that detailed roughness analysis is a useful tool for landscape interpretation; and we suggest that the roughness of an ice-sheet's bed should be viewed not only as the consequence of ancient marine sedimentation, but also as a product of more contemporary erosion and redistribution of sediments, as well as bedrock-smoothing that is ongoing because of continuing dynamic activity. In this way, basal roughness has the potential to evolve continually with ice sheet form and flow, and should not be viewed simply as a snapshot of either present-day or palaeo-basal conditions.

U2 - 10.1016/j.geomorph.2014.01.021

DO - 10.1016/j.geomorph.2014.01.021

M3 - Article

VL - 214

SP - 139

EP - 147

JO - Geomorphology

JF - Geomorphology

SN - 0169-555X

ER -