Numerical simulations of the (de)stabilization of the West Antarctic Ice Sheet
There is evidence that a self-sustaining ice discharge from the West Antarctic Ice Sheet (WAIS) has started, potentially leading to its disintegration. The associated sea level rise of more than 3m would pose a serious challenge to highly populated areas including metropolises such as Calcutta, Shan...
Main Authors: | , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2019
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.907702 https://doi.org/10.1594/PANGAEA.907702 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.907702 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.907702 2024-10-13T14:02:25+00:00 Numerical simulations of the (de)stabilization of the West Antarctic Ice Sheet Feldmann, Johannes Levermann, Anders Mengel, Matthias LATITUDE: -75.000000 * LONGITUDE: -114.000000 2019 application/zip, 208.7 MBytes https://doi.pangaea.de/10.1594/PANGAEA.907702 https://doi.org/10.1594/PANGAEA.907702 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.907702 https://doi.org/10.1594/PANGAEA.907702 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Feldmann, Johannes; Levermann, Anders; Mengel, Matthias (2019): Stabilizing the West Antarctic Ice Sheet by surface mass deposition. Science Advances, 5(7), eaaw4132, https://doi.org/10.1126/sciadv.aaw4132 instability MULT Multiple investigations numerical modeling Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 West_Antarctic_Ice_Sheet West Antarctic Ice Sheet dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.90770210.1126/sciadv.aaw4132 2024-10-02T00:42:44Z There is evidence that a self-sustaining ice discharge from the West Antarctic Ice Sheet (WAIS) has started, potentially leading to its disintegration. The associated sea level rise of more than 3m would pose a serious challenge to highly populated areas including metropolises such as Calcutta, Shanghai, New York City, and Tokyo. Here, we show that the WAIS may be stabilized through mass deposition in coastal regions around Pine Island and Thwaites glaciers. In our numerical simulations, a minimum of 7400 Gt of additional snowfall stabilizes the flow if applied over a short period of 10 years onto the region (−2 mm year−1 sea level equivalent). Mass deposition at a lower rate increases the intervention time and the required total amount of snow. We find that the precise conditions of such an operation are crucial, and potential benefits need to be weighed against environmental hazards, future risks, and enormous technical challenges. Dataset Antarc* Antarctic Arctic Ice Sheet Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Arctic Antarctic West Antarctic Ice Sheet ENVELOPE(-114.000000,-114.000000,-75.000000,-75.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
instability MULT Multiple investigations numerical modeling Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 West_Antarctic_Ice_Sheet West Antarctic Ice Sheet |
spellingShingle |
instability MULT Multiple investigations numerical modeling Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 West_Antarctic_Ice_Sheet West Antarctic Ice Sheet Feldmann, Johannes Levermann, Anders Mengel, Matthias Numerical simulations of the (de)stabilization of the West Antarctic Ice Sheet |
topic_facet |
instability MULT Multiple investigations numerical modeling Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 West_Antarctic_Ice_Sheet West Antarctic Ice Sheet |
description |
There is evidence that a self-sustaining ice discharge from the West Antarctic Ice Sheet (WAIS) has started, potentially leading to its disintegration. The associated sea level rise of more than 3m would pose a serious challenge to highly populated areas including metropolises such as Calcutta, Shanghai, New York City, and Tokyo. Here, we show that the WAIS may be stabilized through mass deposition in coastal regions around Pine Island and Thwaites glaciers. In our numerical simulations, a minimum of 7400 Gt of additional snowfall stabilizes the flow if applied over a short period of 10 years onto the region (−2 mm year−1 sea level equivalent). Mass deposition at a lower rate increases the intervention time and the required total amount of snow. We find that the precise conditions of such an operation are crucial, and potential benefits need to be weighed against environmental hazards, future risks, and enormous technical challenges. |
format |
Dataset |
author |
Feldmann, Johannes Levermann, Anders Mengel, Matthias |
author_facet |
Feldmann, Johannes Levermann, Anders Mengel, Matthias |
author_sort |
Feldmann, Johannes |
title |
Numerical simulations of the (de)stabilization of the West Antarctic Ice Sheet |
title_short |
Numerical simulations of the (de)stabilization of the West Antarctic Ice Sheet |
title_full |
Numerical simulations of the (de)stabilization of the West Antarctic Ice Sheet |
title_fullStr |
Numerical simulations of the (de)stabilization of the West Antarctic Ice Sheet |
title_full_unstemmed |
Numerical simulations of the (de)stabilization of the West Antarctic Ice Sheet |
title_sort |
numerical simulations of the (de)stabilization of the west antarctic ice sheet |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.907702 https://doi.org/10.1594/PANGAEA.907702 |
op_coverage |
LATITUDE: -75.000000 * LONGITUDE: -114.000000 |
long_lat |
ENVELOPE(-114.000000,-114.000000,-75.000000,-75.000000) |
geographic |
Arctic Antarctic West Antarctic Ice Sheet |
geographic_facet |
Arctic Antarctic West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Arctic Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic Arctic Ice Sheet Sea ice |
op_source |
Supplement to: Feldmann, Johannes; Levermann, Anders; Mengel, Matthias (2019): Stabilizing the West Antarctic Ice Sheet by surface mass deposition. Science Advances, 5(7), eaaw4132, https://doi.org/10.1126/sciadv.aaw4132 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.907702 https://doi.org/10.1594/PANGAEA.907702 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.90770210.1126/sciadv.aaw4132 |
_version_ |
1812817103956213760 |