Three-dimensional modelling of calving processes on Johnsons Glacier, Livingston Island, Antarctica.
Iceberg calving is an important mass loss mechanism from ice shelves and tidewater glaciers for many mid and high-latitude glaciers and ice caps, yet the process is not well represented in prognostic models of ice dynamics. Benn and others (2007) proposed a calving criterion appropriate for both gro...
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ftunivpmadrid:oai:oa.upm.es:9176 2023-06-11T04:06:17+02:00 Three-dimensional modelling of calving processes on Johnsons Glacier, Livingston Island, Antarctica. Otero García, Jaime Navarro Valero, Francisco José Martin, Carlos Cuadrado Ebrero, Maria Luisa Corcuera Labrado, María Isabel 2010 application/pdf https://oa.upm.es/9176/ eng eng E.T.S.I. Telecomunicación (UPM) http://meetings.copernicus.org/egu2010 https://oa.upm.es/9176/ https://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess Proceedings of the 7th EGU General Assembly, Geophysical Research Abstracts | 7th EGU General Assembly, Geophysical Research Abstracts | 02/05/2010 - 07/05/2010 | Viena, Austria Medio Ambiente info:eu-repo/semantics/conferenceObject Ponencia en Congreso o Jornada PeerReviewed 2010 ftunivpmadrid 2023-04-18T23:15:39Z Iceberg calving is an important mass loss mechanism from ice shelves and tidewater glaciers for many mid and high-latitude glaciers and ice caps, yet the process is not well represented in prognostic models of ice dynamics. Benn and others (2007) proposed a calving criterion appropriate for both grounded and floating glacier tongues or ice shelves. This criterion assumes that the calving is triggered by the downward propagation of transverse surface crevasses, near the calving front, as a result of the extensional stress regime. The crevasse depth is calculated following Nye (1957), assuming that the base of a field of closely spaced crevasses lies at a depth where the longitudinal tensile strain rate tending to open the crevasse equals the creep closure resulting from the ice overburden pressure. Conference Object Antarc* Antarctica Ice Shelves Livingston Island Tidewater Archivo Digital UPM (Universidad Politécnica de Madrid) Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Johnsons ENVELOPE(-60.350,-60.350,-62.665,-62.665) Johnsons Glacier ENVELOPE(-60.361,-60.361,-62.668,-62.668) |
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Open Polar |
collection |
Archivo Digital UPM (Universidad Politécnica de Madrid) |
op_collection_id |
ftunivpmadrid |
language |
English |
topic |
Medio Ambiente |
spellingShingle |
Medio Ambiente Otero García, Jaime Navarro Valero, Francisco José Martin, Carlos Cuadrado Ebrero, Maria Luisa Corcuera Labrado, María Isabel Three-dimensional modelling of calving processes on Johnsons Glacier, Livingston Island, Antarctica. |
topic_facet |
Medio Ambiente |
description |
Iceberg calving is an important mass loss mechanism from ice shelves and tidewater glaciers for many mid and high-latitude glaciers and ice caps, yet the process is not well represented in prognostic models of ice dynamics. Benn and others (2007) proposed a calving criterion appropriate for both grounded and floating glacier tongues or ice shelves. This criterion assumes that the calving is triggered by the downward propagation of transverse surface crevasses, near the calving front, as a result of the extensional stress regime. The crevasse depth is calculated following Nye (1957), assuming that the base of a field of closely spaced crevasses lies at a depth where the longitudinal tensile strain rate tending to open the crevasse equals the creep closure resulting from the ice overburden pressure. |
format |
Conference Object |
author |
Otero García, Jaime Navarro Valero, Francisco José Martin, Carlos Cuadrado Ebrero, Maria Luisa Corcuera Labrado, María Isabel |
author_facet |
Otero García, Jaime Navarro Valero, Francisco José Martin, Carlos Cuadrado Ebrero, Maria Luisa Corcuera Labrado, María Isabel |
author_sort |
Otero García, Jaime |
title |
Three-dimensional modelling of calving processes on Johnsons Glacier, Livingston Island, Antarctica. |
title_short |
Three-dimensional modelling of calving processes on Johnsons Glacier, Livingston Island, Antarctica. |
title_full |
Three-dimensional modelling of calving processes on Johnsons Glacier, Livingston Island, Antarctica. |
title_fullStr |
Three-dimensional modelling of calving processes on Johnsons Glacier, Livingston Island, Antarctica. |
title_full_unstemmed |
Three-dimensional modelling of calving processes on Johnsons Glacier, Livingston Island, Antarctica. |
title_sort |
three-dimensional modelling of calving processes on johnsons glacier, livingston island, antarctica. |
publisher |
E.T.S.I. Telecomunicación (UPM) |
publishDate |
2010 |
url |
https://oa.upm.es/9176/ |
long_lat |
ENVELOPE(-60.500,-60.500,-62.600,-62.600) ENVELOPE(-60.350,-60.350,-62.665,-62.665) ENVELOPE(-60.361,-60.361,-62.668,-62.668) |
geographic |
Livingston Island Johnsons Johnsons Glacier |
geographic_facet |
Livingston Island Johnsons Johnsons Glacier |
genre |
Antarc* Antarctica Ice Shelves Livingston Island Tidewater |
genre_facet |
Antarc* Antarctica Ice Shelves Livingston Island Tidewater |
op_source |
Proceedings of the 7th EGU General Assembly, Geophysical Research Abstracts | 7th EGU General Assembly, Geophysical Research Abstracts | 02/05/2010 - 07/05/2010 | Viena, Austria |
op_relation |
http://meetings.copernicus.org/egu2010 https://oa.upm.es/9176/ |
op_rights |
https://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess |
_version_ |
1768378146871050240 |