Modelling Last Glacial Maximum ice cap with the Parallel Ice Sheet Model to infer palaeoclimate in south‐west Turkey
ABSTRACT Modelling palaeoglaciers in mountainous terrain is challenging due to the need for detailed ice flow computations in relatively narrow and steep valleys, high‐resolution climate estimations, knowledge of pre‐ice topography, and proxy‐based palaeoclimate forcing. The Parallel Ice Sheet Model...
Published in: | Journal of Quaternary Science |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/jqs.3239 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3239 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3239 |
id |
crwiley:10.1002/jqs.3239 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/jqs.3239 2024-06-02T07:57:33+00:00 Modelling Last Glacial Maximum ice cap with the Parallel Ice Sheet Model to infer palaeoclimate in south‐west Turkey Candaş, Adem Sarikaya, M. Akif KÖSE, Oğuzhan Şen, Ömer L. Çiner, Attila 2020 http://dx.doi.org/10.1002/jqs.3239 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3239 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3239 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 35, issue 7, page 935-950 ISSN 0267-8179 1099-1417 journal-article 2020 crwiley https://doi.org/10.1002/jqs.3239 2024-05-03T10:37:00Z ABSTRACT Modelling palaeoglaciers in mountainous terrain is challenging due to the need for detailed ice flow computations in relatively narrow and steep valleys, high‐resolution climate estimations, knowledge of pre‐ice topography, and proxy‐based palaeoclimate forcing. The Parallel Ice Sheet Model (PISM), a numerical model that approximates glacier sliding and deformation to simulate large ice sheets such as Greenland and Antarctica, was recently adapted to alpine environments. In an attempt to reconstruct the climate conditions during the Last Glacial Maximum (LGM) on Mount Dedegöl in SW Turkey, we used PISM and explored palaeoglacier dynamics at high spatial resolution (100 m) in a relatively small domain (225 km 2 ). Palaeoice‐flow fields were modelled as a function of present temperature and precipitation. Nine different palaeoclimate simulations were run to reach the steady‐state glacier extents and the modelled glacial areas were compared with the field‐based and chronologically well‐established ice extents. Although our results provide a non‐unique solution, best‐fit scenarios indicate that the LGM climate on Mount Dedegöl was between 9.2 and 10.6 °C colder than today, while precipitation levels were the same as today. More humid (20% wetter) or arid (20% drier) conditions than today bring the palaeotemperature estimates to 7.7–8.8 or 11.5–13.2 °C lower than present, respectively. Article in Journal/Newspaper Antarc* Antarctica glacier Greenland Ice cap Ice Sheet Wiley Online Library Greenland Journal of Quaternary Science 35 7 935 950 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT Modelling palaeoglaciers in mountainous terrain is challenging due to the need for detailed ice flow computations in relatively narrow and steep valleys, high‐resolution climate estimations, knowledge of pre‐ice topography, and proxy‐based palaeoclimate forcing. The Parallel Ice Sheet Model (PISM), a numerical model that approximates glacier sliding and deformation to simulate large ice sheets such as Greenland and Antarctica, was recently adapted to alpine environments. In an attempt to reconstruct the climate conditions during the Last Glacial Maximum (LGM) on Mount Dedegöl in SW Turkey, we used PISM and explored palaeoglacier dynamics at high spatial resolution (100 m) in a relatively small domain (225 km 2 ). Palaeoice‐flow fields were modelled as a function of present temperature and precipitation. Nine different palaeoclimate simulations were run to reach the steady‐state glacier extents and the modelled glacial areas were compared with the field‐based and chronologically well‐established ice extents. Although our results provide a non‐unique solution, best‐fit scenarios indicate that the LGM climate on Mount Dedegöl was between 9.2 and 10.6 °C colder than today, while precipitation levels were the same as today. More humid (20% wetter) or arid (20% drier) conditions than today bring the palaeotemperature estimates to 7.7–8.8 or 11.5–13.2 °C lower than present, respectively. |
format |
Article in Journal/Newspaper |
author |
Candaş, Adem Sarikaya, M. Akif KÖSE, Oğuzhan Şen, Ömer L. Çiner, Attila |
spellingShingle |
Candaş, Adem Sarikaya, M. Akif KÖSE, Oğuzhan Şen, Ömer L. Çiner, Attila Modelling Last Glacial Maximum ice cap with the Parallel Ice Sheet Model to infer palaeoclimate in south‐west Turkey |
author_facet |
Candaş, Adem Sarikaya, M. Akif KÖSE, Oğuzhan Şen, Ömer L. Çiner, Attila |
author_sort |
Candaş, Adem |
title |
Modelling Last Glacial Maximum ice cap with the Parallel Ice Sheet Model to infer palaeoclimate in south‐west Turkey |
title_short |
Modelling Last Glacial Maximum ice cap with the Parallel Ice Sheet Model to infer palaeoclimate in south‐west Turkey |
title_full |
Modelling Last Glacial Maximum ice cap with the Parallel Ice Sheet Model to infer palaeoclimate in south‐west Turkey |
title_fullStr |
Modelling Last Glacial Maximum ice cap with the Parallel Ice Sheet Model to infer palaeoclimate in south‐west Turkey |
title_full_unstemmed |
Modelling Last Glacial Maximum ice cap with the Parallel Ice Sheet Model to infer palaeoclimate in south‐west Turkey |
title_sort |
modelling last glacial maximum ice cap with the parallel ice sheet model to infer palaeoclimate in south‐west turkey |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/jqs.3239 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.3239 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/jqs.3239 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica glacier Greenland Ice cap Ice Sheet |
genre_facet |
Antarc* Antarctica glacier Greenland Ice cap Ice Sheet |
op_source |
Journal of Quaternary Science volume 35, issue 7, page 935-950 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.3239 |
container_title |
Journal of Quaternary Science |
container_volume |
35 |
container_issue |
7 |
container_start_page |
935 |
op_container_end_page |
950 |
_version_ |
1800740705918779392 |