Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution
Locally grounded features in ice shelves, called ice rises and rumples, play a key role buttressing discharge from the Antarctic Ice Sheet and regulating its contribution to sea level. Ice rises typically rise several hundreds of meters above the surrounding ice shelf; shelf flow is diverted around...
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ftcolumbiauniv:oai:academiccommons.columbia.edu:10.7916/D8V124VR 2023-05-15T13:41:09+02:00 Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution Matsuoka, Kenichi Hindmarsh, Richard C. A. Moholdt, Geir Bentley, Michael J. Pritchard, Hamish D. Brown, Joel Conway, Howard Drews, Reinhard Durand, Gaël Goldberg, Daniel Hattermann, Tore Kingslake, Jonathan Lenaerts, Jan T. M. Martín, Carlos Mulvaney, Robert Nicholls, Keith W. Pattyn, Frank Ross, Neil Scambos, Ted A. Whitehouse, Pippa L. 2015 https://doi.org/10.7916/D8V124VR English eng https://doi.org/10.7916/D8V124VR Ice--Dynamics Glaciology Ice sheets Geophysics Hydrology Articles 2015 ftcolumbiauniv https://doi.org/10.7916/D8V124VR 2019-04-04T08:14:42Z Locally grounded features in ice shelves, called ice rises and rumples, play a key role buttressing discharge from the Antarctic Ice Sheet and regulating its contribution to sea level. Ice rises typically rise several hundreds of meters above the surrounding ice shelf; shelf flow is diverted around them. On the other hand, shelf ice flows across ice rumples, which typically rise only a few tens of meters above the ice shelf. Ice rises contain rich histories of deglaciation and climate that extend back over timescales ranging from a few millennia to beyond the last glacial maximum. Numerical model results have shown that the buttressing effects of ice rises and rumples are signifi- cant, but details of processes and how they evolve remain poorly understood. Fundamental information about the conditions and processes that cause transitions between floating ice shelves, ice rises and ice rumples is needed in order to assess their impact on ice-sheet behavior. Targeted high-resolution observational data are needed to evaluate and improve prognostic numerical models and parameterizations of the effects of small-scale pinning points on grounding-zone dynamics. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Ice Shelf Ice Shelves Columbia University: Academic Commons Antarctic The Antarctic |
institution |
Open Polar |
collection |
Columbia University: Academic Commons |
op_collection_id |
ftcolumbiauniv |
language |
English |
topic |
Ice--Dynamics Glaciology Ice sheets Geophysics Hydrology |
spellingShingle |
Ice--Dynamics Glaciology Ice sheets Geophysics Hydrology Matsuoka, Kenichi Hindmarsh, Richard C. A. Moholdt, Geir Bentley, Michael J. Pritchard, Hamish D. Brown, Joel Conway, Howard Drews, Reinhard Durand, Gaël Goldberg, Daniel Hattermann, Tore Kingslake, Jonathan Lenaerts, Jan T. M. Martín, Carlos Mulvaney, Robert Nicholls, Keith W. Pattyn, Frank Ross, Neil Scambos, Ted A. Whitehouse, Pippa L. Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution |
topic_facet |
Ice--Dynamics Glaciology Ice sheets Geophysics Hydrology |
description |
Locally grounded features in ice shelves, called ice rises and rumples, play a key role buttressing discharge from the Antarctic Ice Sheet and regulating its contribution to sea level. Ice rises typically rise several hundreds of meters above the surrounding ice shelf; shelf flow is diverted around them. On the other hand, shelf ice flows across ice rumples, which typically rise only a few tens of meters above the ice shelf. Ice rises contain rich histories of deglaciation and climate that extend back over timescales ranging from a few millennia to beyond the last glacial maximum. Numerical model results have shown that the buttressing effects of ice rises and rumples are signifi- cant, but details of processes and how they evolve remain poorly understood. Fundamental information about the conditions and processes that cause transitions between floating ice shelves, ice rises and ice rumples is needed in order to assess their impact on ice-sheet behavior. Targeted high-resolution observational data are needed to evaluate and improve prognostic numerical models and parameterizations of the effects of small-scale pinning points on grounding-zone dynamics. |
format |
Article in Journal/Newspaper |
author |
Matsuoka, Kenichi Hindmarsh, Richard C. A. Moholdt, Geir Bentley, Michael J. Pritchard, Hamish D. Brown, Joel Conway, Howard Drews, Reinhard Durand, Gaël Goldberg, Daniel Hattermann, Tore Kingslake, Jonathan Lenaerts, Jan T. M. Martín, Carlos Mulvaney, Robert Nicholls, Keith W. Pattyn, Frank Ross, Neil Scambos, Ted A. Whitehouse, Pippa L. |
author_facet |
Matsuoka, Kenichi Hindmarsh, Richard C. A. Moholdt, Geir Bentley, Michael J. Pritchard, Hamish D. Brown, Joel Conway, Howard Drews, Reinhard Durand, Gaël Goldberg, Daniel Hattermann, Tore Kingslake, Jonathan Lenaerts, Jan T. M. Martín, Carlos Mulvaney, Robert Nicholls, Keith W. Pattyn, Frank Ross, Neil Scambos, Ted A. Whitehouse, Pippa L. |
author_sort |
Matsuoka, Kenichi |
title |
Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution |
title_short |
Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution |
title_full |
Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution |
title_fullStr |
Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution |
title_full_unstemmed |
Antarctic ice rises and rumples: Their properties and significance for ice-sheet dynamics and evolution |
title_sort |
antarctic ice rises and rumples: their properties and significance for ice-sheet dynamics and evolution |
publishDate |
2015 |
url |
https://doi.org/10.7916/D8V124VR |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Ice Sheet Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Ice Sheet Ice Shelf Ice Shelves |
op_relation |
https://doi.org/10.7916/D8V124VR |
op_doi |
https://doi.org/10.7916/D8V124VR |
_version_ |
1766146161218945024 |