Computing the volume response of the Antarctic Peninsula ice sheet to warming scenarios to 2200
ABSTRACT. The contribution to sea level to 2200 from the grounded, mainland Antarctic Peninsula ice sheet (APIS) was calculated using an ice-sheet model initialized with a new technique computing ice fluxes based on observed surface velocities, altimetry and surface mass balance, and computing volum...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.602.9917 2023-05-15T13:33:26+02:00 Computing the volume response of the Antarctic Peninsula ice sheet to warming scenarios to 2200 Nicholas E. Barrand Richard C. A. Hindmarsh Robert J. Arthern Eric Rignot Stefan R. M. Ligtenberg Michiel R. Van Den Broeke Tamsin L. Edwards Alison J. Cook Sebastian B. Simonsen The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.602.9917 http://www.igsoc.org/journal/59/215/t12J139.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.602.9917 http://www.igsoc.org/journal/59/215/t12J139.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.igsoc.org/journal/59/215/t12J139.pdf The Antarctic Peninsula (AP) region text ftciteseerx 2016-01-08T14:07:32Z ABSTRACT. The contribution to sea level to 2200 from the grounded, mainland Antarctic Peninsula ice sheet (APIS) was calculated using an ice-sheet model initialized with a new technique computing ice fluxes based on observed surface velocities, altimetry and surface mass balance, and computing volume response using a linearized method. Volume change estimates of the APIS resulting from surface mass-balance anomalies calculated by the regional model RACMO2, forced by A1B and E1 scenarios of the global models ECHAM5 and HadCM3, predicted net negative sea-level contributions between –0.5 and –12mm sea-level equivalent (SLE) by 2200. Increased glacier flow due to ice thickening returned 15% of the increased accumulation to the sea by 2100 and 30 % by 2200. The likely change in volume of the APIS by 2200 in response to imposed 10 and 20 km retreats of the grounding line at individual large outlet glaciers in Palmer Land, southern Antarctic Peninsula, ranged between 0.5 and 3.5mm SLE per drainage basin. Ensemble calculations of APIS volume change resulting from imposed grounding-line retreat due to ice-shelf break-up scenarios applied to all 20 of the largest drainage basins in Palmer Land (covering 40 % of the total area of APIS) resulted in net sea-level contributions of 7–16mm SLE by 2100, and 10–25mm SLE by 2200. Inclusion of basins in the northern peninsula and realistic simulation Text Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Palmer Land Unknown Antarctic Antarctic Peninsula Palmer Land ENVELOPE(-65.000,-65.000,-71.500,-71.500) The Antarctic |
institution |
Open Polar |
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Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
The Antarctic Peninsula (AP) region |
spellingShingle |
The Antarctic Peninsula (AP) region Nicholas E. Barrand Richard C. A. Hindmarsh Robert J. Arthern Eric Rignot Stefan R. M. Ligtenberg Michiel R. Van Den Broeke Tamsin L. Edwards Alison J. Cook Sebastian B. Simonsen Computing the volume response of the Antarctic Peninsula ice sheet to warming scenarios to 2200 |
topic_facet |
The Antarctic Peninsula (AP) region |
description |
ABSTRACT. The contribution to sea level to 2200 from the grounded, mainland Antarctic Peninsula ice sheet (APIS) was calculated using an ice-sheet model initialized with a new technique computing ice fluxes based on observed surface velocities, altimetry and surface mass balance, and computing volume response using a linearized method. Volume change estimates of the APIS resulting from surface mass-balance anomalies calculated by the regional model RACMO2, forced by A1B and E1 scenarios of the global models ECHAM5 and HadCM3, predicted net negative sea-level contributions between –0.5 and –12mm sea-level equivalent (SLE) by 2200. Increased glacier flow due to ice thickening returned 15% of the increased accumulation to the sea by 2100 and 30 % by 2200. The likely change in volume of the APIS by 2200 in response to imposed 10 and 20 km retreats of the grounding line at individual large outlet glaciers in Palmer Land, southern Antarctic Peninsula, ranged between 0.5 and 3.5mm SLE per drainage basin. Ensemble calculations of APIS volume change resulting from imposed grounding-line retreat due to ice-shelf break-up scenarios applied to all 20 of the largest drainage basins in Palmer Land (covering 40 % of the total area of APIS) resulted in net sea-level contributions of 7–16mm SLE by 2100, and 10–25mm SLE by 2200. Inclusion of basins in the northern peninsula and realistic simulation |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Nicholas E. Barrand Richard C. A. Hindmarsh Robert J. Arthern Eric Rignot Stefan R. M. Ligtenberg Michiel R. Van Den Broeke Tamsin L. Edwards Alison J. Cook Sebastian B. Simonsen |
author_facet |
Nicholas E. Barrand Richard C. A. Hindmarsh Robert J. Arthern Eric Rignot Stefan R. M. Ligtenberg Michiel R. Van Den Broeke Tamsin L. Edwards Alison J. Cook Sebastian B. Simonsen |
author_sort |
Nicholas E. Barrand |
title |
Computing the volume response of the Antarctic Peninsula ice sheet to warming scenarios to 2200 |
title_short |
Computing the volume response of the Antarctic Peninsula ice sheet to warming scenarios to 2200 |
title_full |
Computing the volume response of the Antarctic Peninsula ice sheet to warming scenarios to 2200 |
title_fullStr |
Computing the volume response of the Antarctic Peninsula ice sheet to warming scenarios to 2200 |
title_full_unstemmed |
Computing the volume response of the Antarctic Peninsula ice sheet to warming scenarios to 2200 |
title_sort |
computing the volume response of the antarctic peninsula ice sheet to warming scenarios to 2200 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.602.9917 http://www.igsoc.org/journal/59/215/t12J139.pdf |
long_lat |
ENVELOPE(-65.000,-65.000,-71.500,-71.500) |
geographic |
Antarctic Antarctic Peninsula Palmer Land The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Palmer Land The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Palmer Land |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf Palmer Land |
op_source |
http://www.igsoc.org/journal/59/215/t12J139.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.602.9917 http://www.igsoc.org/journal/59/215/t12J139.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766042249141944320 |