Simulation of the future sea level contribution of Greenland with a new glacial system model
We introduce the coupled model of the Green- land glacial system IGLOO 1.0, including the polythermal ice sheet model SICOPOLIS (version 3.3) with hybrid dy- namics, the model of basal hydrology HYDRO and a param- eterization of submarine melt for marine-terminated outlet glaciers. The aim of this g...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
COPERNICUS GESELLSCHAFT MBH
2018
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/49016/ https://epic.awi.de/id/eprint/49016/1/Calov2018.pdf https://hdl.handle.net/10013/epic.ee2031ef-6cc2-488f-a239-cf1271cf8ae0 https://hdl.handle.net/ |
id |
ftawi:oai:epic.awi.de:49016 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:49016 2023-05-15T16:27:42+02:00 Simulation of the future sea level contribution of Greenland with a new glacial system model Calov, Reinhard Beyer, Sebastian Greve, Ralf Beckmann, Johanna Willeit, Matteo Kleiner, Thomas Rückamp, Martin Humbert, Angelika Ganopolski, Andrey 2018-10-02 application/pdf https://epic.awi.de/id/eprint/49016/ https://epic.awi.de/id/eprint/49016/1/Calov2018.pdf https://hdl.handle.net/10013/epic.ee2031ef-6cc2-488f-a239-cf1271cf8ae0 https://hdl.handle.net/ unknown COPERNICUS GESELLSCHAFT MBH https://epic.awi.de/id/eprint/49016/1/Calov2018.pdf https://hdl.handle.net/ Calov, R. , Beyer, S. , Greve, R. , Beckmann, J. , Willeit, M. , Kleiner, T. , Rückamp, M. , Humbert, A. and Ganopolski, A. (2018) Simulation of the future sea level contribution of Greenland with a new glacial system model , The Cryosphere, 12 (10), pp. 3097-3121 . doi:10.5194/tc-12-3097-2018 <https://doi.org/10.5194/tc-12-3097-2018> , hdl:10013/epic.ee2031ef-6cc2-488f-a239-cf1271cf8ae0 EPIC3The Cryosphere, COPERNICUS GESELLSCHAFT MBH, 12(10), pp. 3097-3121, ISSN: 1994-0424 Article isiRev 2018 ftawi https://doi.org/10.5194/tc-12-3097-2018 2021-12-24T15:44:31Z We introduce the coupled model of the Green- land glacial system IGLOO 1.0, including the polythermal ice sheet model SICOPOLIS (version 3.3) with hybrid dy- namics, the model of basal hydrology HYDRO and a param- eterization of submarine melt for marine-terminated outlet glaciers. The aim of this glacial system model is to gain a better understanding of the processes important for the future contribution of the Greenland ice sheet to sea level rise under future climate change scenarios. The ice sheet is initialized via a relaxation towards observed surface elevation, impos- ing the palaeo-surface temperature over the last glacial cycle. As a present-day reference, we use the 1961–1990 standard climatology derived from simulations of the regional atmo- sphere model MAR with ERA reanalysis boundary condi- tions. For the palaeo-part of the spin-up, we add the temper- ature anomaly derived from the GRIP ice core to the years 1961–1990 average surface temperature field. For our pro- jections, we apply surface temperature and surface mass bal- ance anomalies derived from RCP 4.5 and RCP 8.5 scenar- ios created by MAR with boundary conditions from simula- tions with three CMIP5 models. The hybrid ice sheet model is fully coupled with the model of basal hydrology. With this model and the MAR scenarios, we perform simulations to estimate the contribution of the Greenland ice sheet to future sea level rise until the end of the 21st and 23rd centuries. Fur- ther on, the impact of elevation–surface mass balance feed- back, introduced via the MAR data, on future sea level rise is inspected. In our projections, we found the Greenland ice sheet to contribute between 1.9 and 13.0 cm to global sea level rise until the year 2100 and between 3.5 and 76.4 cm until the year 2300, including our simulated additional sea level rise due to elevation–surface mass balance feedback. Translated into additional sea level rise, the strength of this feedback in the year 2100 varies from 0.4 to 1.7 cm, and in the year 2300 it ranges from 1.7 to 21.8 cm. Additionally, taking the Helheim and Store glaciers as examples, we inves- tigate the role of ocean warming and surface runoff change for the melting of outlet glaciers. It shows that ocean temper- ature and subglacial discharge are about equally important for the melting of the examined outlet glaciers. Article in Journal/Newspaper Greenland GRIP ice core Ice Sheet The Cryosphere Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Dy ENVELOPE(11.369,11.369,64.834,64.834) Greenland The Cryosphere 12 10 3097 3121 |
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 |
We introduce the coupled model of the Green- land glacial system IGLOO 1.0, including the polythermal ice sheet model SICOPOLIS (version 3.3) with hybrid dy- namics, the model of basal hydrology HYDRO and a param- eterization of submarine melt for marine-terminated outlet glaciers. The aim of this glacial system model is to gain a better understanding of the processes important for the future contribution of the Greenland ice sheet to sea level rise under future climate change scenarios. The ice sheet is initialized via a relaxation towards observed surface elevation, impos- ing the palaeo-surface temperature over the last glacial cycle. As a present-day reference, we use the 1961–1990 standard climatology derived from simulations of the regional atmo- sphere model MAR with ERA reanalysis boundary condi- tions. For the palaeo-part of the spin-up, we add the temper- ature anomaly derived from the GRIP ice core to the years 1961–1990 average surface temperature field. For our pro- jections, we apply surface temperature and surface mass bal- ance anomalies derived from RCP 4.5 and RCP 8.5 scenar- ios created by MAR with boundary conditions from simula- tions with three CMIP5 models. The hybrid ice sheet model is fully coupled with the model of basal hydrology. With this model and the MAR scenarios, we perform simulations to estimate the contribution of the Greenland ice sheet to future sea level rise until the end of the 21st and 23rd centuries. Fur- ther on, the impact of elevation–surface mass balance feed- back, introduced via the MAR data, on future sea level rise is inspected. In our projections, we found the Greenland ice sheet to contribute between 1.9 and 13.0 cm to global sea level rise until the year 2100 and between 3.5 and 76.4 cm until the year 2300, including our simulated additional sea level rise due to elevation–surface mass balance feedback. Translated into additional sea level rise, the strength of this feedback in the year 2100 varies from 0.4 to 1.7 cm, and in the year 2300 it ranges from 1.7 to 21.8 cm. Additionally, taking the Helheim and Store glaciers as examples, we inves- tigate the role of ocean warming and surface runoff change for the melting of outlet glaciers. It shows that ocean temper- ature and subglacial discharge are about equally important for the melting of the examined outlet glaciers. |
format |
Article in Journal/Newspaper |
author |
Calov, Reinhard Beyer, Sebastian Greve, Ralf Beckmann, Johanna Willeit, Matteo Kleiner, Thomas Rückamp, Martin Humbert, Angelika Ganopolski, Andrey |
spellingShingle |
Calov, Reinhard Beyer, Sebastian Greve, Ralf Beckmann, Johanna Willeit, Matteo Kleiner, Thomas Rückamp, Martin Humbert, Angelika Ganopolski, Andrey Simulation of the future sea level contribution of Greenland with a new glacial system model |
author_facet |
Calov, Reinhard Beyer, Sebastian Greve, Ralf Beckmann, Johanna Willeit, Matteo Kleiner, Thomas Rückamp, Martin Humbert, Angelika Ganopolski, Andrey |
author_sort |
Calov, Reinhard |
title |
Simulation of the future sea level contribution of Greenland with a new glacial system model |
title_short |
Simulation of the future sea level contribution of Greenland with a new glacial system model |
title_full |
Simulation of the future sea level contribution of Greenland with a new glacial system model |
title_fullStr |
Simulation of the future sea level contribution of Greenland with a new glacial system model |
title_full_unstemmed |
Simulation of the future sea level contribution of Greenland with a new glacial system model |
title_sort |
simulation of the future sea level contribution of greenland with a new glacial system model |
publisher |
COPERNICUS GESELLSCHAFT MBH |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/49016/ https://epic.awi.de/id/eprint/49016/1/Calov2018.pdf https://hdl.handle.net/10013/epic.ee2031ef-6cc2-488f-a239-cf1271cf8ae0 https://hdl.handle.net/ |
long_lat |
ENVELOPE(11.369,11.369,64.834,64.834) |
geographic |
Dy Greenland |
geographic_facet |
Dy Greenland |
genre |
Greenland GRIP ice core Ice Sheet The Cryosphere |
genre_facet |
Greenland GRIP ice core Ice Sheet The Cryosphere |
op_source |
EPIC3The Cryosphere, COPERNICUS GESELLSCHAFT MBH, 12(10), pp. 3097-3121, ISSN: 1994-0424 |
op_relation |
https://epic.awi.de/id/eprint/49016/1/Calov2018.pdf https://hdl.handle.net/ Calov, R. , Beyer, S. , Greve, R. , Beckmann, J. , Willeit, M. , Kleiner, T. , Rückamp, M. , Humbert, A. and Ganopolski, A. (2018) Simulation of the future sea level contribution of Greenland with a new glacial system model , The Cryosphere, 12 (10), pp. 3097-3121 . doi:10.5194/tc-12-3097-2018 <https://doi.org/10.5194/tc-12-3097-2018> , hdl:10013/epic.ee2031ef-6cc2-488f-a239-cf1271cf8ae0 |
op_doi |
https://doi.org/10.5194/tc-12-3097-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
10 |
container_start_page |
3097 |
op_container_end_page |
3121 |
_version_ |
1766017156357554176 |