Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study
A general ocean circulation model is coupled with a 3D-thermodynamical ice-sheet/shelf model to simulate the response of the Filchner–Ronne Ice Shelf (FRIS, Antarctica) and coastal parts of its catchment basin to a postulated inflow of Warm Deep Water into the ice-shelf cavity on a 1000-yr timescale...
Published in: | Earth and Planetary Science Letters |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2015
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/38817/ https://epic.awi.de/id/eprint/38817/1/new.pdf https://doi.org/10.1016/j.epsl.2015.09.013 https://hdl.handle.net/10013/epic.46076 https://hdl.handle.net/10013/epic.46076.d001 |
id |
ftawi:oai:epic.awi.de:38817 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:38817 2024-09-15T17:43:52+00:00 Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study Thoma, Malte Determann, Jürgen Grosfeld, Klaus Goeller, Sebastian Hellmer, Hartmut 2015-10 application/pdf https://epic.awi.de/id/eprint/38817/ https://epic.awi.de/id/eprint/38817/1/new.pdf https://doi.org/10.1016/j.epsl.2015.09.013 https://hdl.handle.net/10013/epic.46076 https://hdl.handle.net/10013/epic.46076.d001 unknown https://epic.awi.de/id/eprint/38817/1/new.pdf https://hdl.handle.net/10013/epic.46076.d001 Thoma, M. orcid:0000-0002-4033-3905 , Determann, J. , Grosfeld, K. orcid:0000-0001-5936-179X , Goeller, S. and Hellmer, H. orcid:0000-0002-9357-9853 (2015) Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study , Earth and Planetary Science Letters, 431 , pp. 217-224 . doi:10.1016/j.epsl.2015.09.013 <https://doi.org/10.1016/j.epsl.2015.09.013> , hdl:10013/epic.46076 EPIC3Earth and Planetary Science Letters, 431, pp. 217-224, ISSN: 0012821X Article isiRev 2015 ftawi https://doi.org/10.1016/j.epsl.2015.09.013 2024-06-24T04:12:21Z A general ocean circulation model is coupled with a 3D-thermodynamical ice-sheet/shelf model to simulate the response of the Filchner–Ronne Ice Shelf (FRIS, Antarctica) and coastal parts of its catchment basin to a postulated inflow of Warm Deep Water into the ice-shelf cavity on a 1000-yr timescale. Prescribed ocean warming (based on climate projections) enters the ice-shelf cavity in the up to 1500 m deep Filchner Trough and penetrates deep into the sub-ice cavity. Increasing basal melt rates induce geometry changes of the cavity, which in turn have an impact on the ocean circulation and therefore the modelled melt rates. Highest melt rates of about 20 m yr−1 follow the (up to 180 km) retreating grounding line. Basal mass loss reaches about 250 km3 yr−1, doubling the present-day value. The most vulnerable areas below the FRIS are the Bailey Ice Stream and the area between the Institute and Moeller Ice Streams, where the increased melting accounts for about 80 km of the modelled grounding line retreat on the backward sloping bedrock. The potential additional contribution to the eustatic sea level rise due to the grounded-ice loss, simulated in an ensemble approach against a transient control experiment, is about 0.05 mm yr−1 during the first 500 yr and about 0.17 mm yr−1 thereafter. Article in Journal/Newspaper Antarc* Antarctica Bailey Ice Stream Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Sheet Ice Shelf Ronne Ice Shelf Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Earth and Planetary Science Letters 431 217 224 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
A general ocean circulation model is coupled with a 3D-thermodynamical ice-sheet/shelf model to simulate the response of the Filchner–Ronne Ice Shelf (FRIS, Antarctica) and coastal parts of its catchment basin to a postulated inflow of Warm Deep Water into the ice-shelf cavity on a 1000-yr timescale. Prescribed ocean warming (based on climate projections) enters the ice-shelf cavity in the up to 1500 m deep Filchner Trough and penetrates deep into the sub-ice cavity. Increasing basal melt rates induce geometry changes of the cavity, which in turn have an impact on the ocean circulation and therefore the modelled melt rates. Highest melt rates of about 20 m yr−1 follow the (up to 180 km) retreating grounding line. Basal mass loss reaches about 250 km3 yr−1, doubling the present-day value. The most vulnerable areas below the FRIS are the Bailey Ice Stream and the area between the Institute and Moeller Ice Streams, where the increased melting accounts for about 80 km of the modelled grounding line retreat on the backward sloping bedrock. The potential additional contribution to the eustatic sea level rise due to the grounded-ice loss, simulated in an ensemble approach against a transient control experiment, is about 0.05 mm yr−1 during the first 500 yr and about 0.17 mm yr−1 thereafter. |
format |
Article in Journal/Newspaper |
author |
Thoma, Malte Determann, Jürgen Grosfeld, Klaus Goeller, Sebastian Hellmer, Hartmut |
spellingShingle |
Thoma, Malte Determann, Jürgen Grosfeld, Klaus Goeller, Sebastian Hellmer, Hartmut Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study |
author_facet |
Thoma, Malte Determann, Jürgen Grosfeld, Klaus Goeller, Sebastian Hellmer, Hartmut |
author_sort |
Thoma, Malte |
title |
Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study |
title_short |
Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study |
title_full |
Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study |
title_fullStr |
Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study |
title_full_unstemmed |
Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study |
title_sort |
future sea-level rise due to projected ocean warming beneath the filchner ronne ice shelf: a coupled model study |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/38817/ https://epic.awi.de/id/eprint/38817/1/new.pdf https://doi.org/10.1016/j.epsl.2015.09.013 https://hdl.handle.net/10013/epic.46076 https://hdl.handle.net/10013/epic.46076.d001 |
genre |
Antarc* Antarctica Bailey Ice Stream Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Sheet Ice Shelf Ronne Ice Shelf |
genre_facet |
Antarc* Antarctica Bailey Ice Stream Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Ice Sheet Ice Shelf Ronne Ice Shelf |
op_source |
EPIC3Earth and Planetary Science Letters, 431, pp. 217-224, ISSN: 0012821X |
op_relation |
https://epic.awi.de/id/eprint/38817/1/new.pdf https://hdl.handle.net/10013/epic.46076.d001 Thoma, M. orcid:0000-0002-4033-3905 , Determann, J. , Grosfeld, K. orcid:0000-0001-5936-179X , Goeller, S. and Hellmer, H. orcid:0000-0002-9357-9853 (2015) Future sea-level rise due to projected ocean warming beneath the Filchner Ronne Ice Shelf: A coupled model study , Earth and Planetary Science Letters, 431 , pp. 217-224 . doi:10.1016/j.epsl.2015.09.013 <https://doi.org/10.1016/j.epsl.2015.09.013> , hdl:10013/epic.46076 |
op_doi |
https://doi.org/10.1016/j.epsl.2015.09.013 |
container_title |
Earth and Planetary Science Letters |
container_volume |
431 |
container_start_page |
217 |
op_container_end_page |
224 |
_version_ |
1810491079088144384 |