Climate change between the mid and late Holocene in northern high latitudes – Part 2: Model-data comparisons
The climate response over northern high latitudes to the mid-Holocene orbital forcing has been investigated in three types of PMIP (Paleoclimate Modelling Intercomparison Project) simulations with different complexity of the modelled climate system. By first undertaking model-data comparison, an obj...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2010
|
Subjects: | |
Online Access: | https://doi.org/10.5194/cp-6-609-2010 https://doaj.org/article/b9cf1fd9fd284c8cb24d7fbfc8a1f034 |
id |
ftdoajarticles:oai:doaj.org/article:b9cf1fd9fd284c8cb24d7fbfc8a1f034 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:b9cf1fd9fd284c8cb24d7fbfc8a1f034 2023-05-15T13:11:59+02:00 Climate change between the mid and late Holocene in northern high latitudes – Part 2: Model-data comparisons K. Holmgren J. Nilsson H. Körnich A. Moberg H. S. Sundqvist Q. Zhang 2010-09-01T00:00:00Z https://doi.org/10.5194/cp-6-609-2010 https://doaj.org/article/b9cf1fd9fd284c8cb24d7fbfc8a1f034 EN eng Copernicus Publications http://www.clim-past.net/6/609/2010/cp-6-609-2010.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-6-609-2010 1814-9324 1814-9332 https://doaj.org/article/b9cf1fd9fd284c8cb24d7fbfc8a1f034 Climate of the Past, Vol 6, Iss 5, Pp 609-626 (2010) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2010 ftdoajarticles https://doi.org/10.5194/cp-6-609-2010 2022-12-31T07:23:27Z The climate response over northern high latitudes to the mid-Holocene orbital forcing has been investigated in three types of PMIP (Paleoclimate Modelling Intercomparison Project) simulations with different complexity of the modelled climate system. By first undertaking model-data comparison, an objective selection method has been applied to evaluate the capability of the climate models to reproduce the spatial response pattern seen in proxy data. The possible feedback mechanisms behind the climate response have been explored based on the selected model simulations. Subsequent model-model comparisons indicate the importance of including the different physical feedbacks in the climate models. The comparisons between the proxy-based reconstructions and the best fit selected simulations show that over the northern high latitudes, summer temperature change follows closely the insolation change and shows a common feature with strong warming over land and relatively weak warming over ocean at 6 ka compared to 0 ka. Furthermore, the sea-ice-albedo positive feedback enhances this response. The reconstructions of temperature show a stronger response to enhanced insolation in the annual mean temperature than winter and summer temperature. This is verified in the model simulations and the behaviour is attributed to the larger contribution from the large response in autumn. Despite a smaller insolation during winter at 6 ka, a pronounced warming centre is found over Barents Sea in winter in the simulations, which is also supported by the nearby northern Eurasian continental and Fennoscandian reconstructions. This indicates that in the Arctic region, the response of the ocean and the sea ice to the enhanced summer insolation is more important for the winter temperature than the synchronous decrease of the insolation. Article in Journal/Newspaper albedo Arctic Barents Sea Climate change Fennoscandian Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Barents Sea Climate of the Past 6 5 609 626 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 K. Holmgren J. Nilsson H. Körnich A. Moberg H. S. Sundqvist Q. Zhang Climate change between the mid and late Holocene in northern high latitudes – Part 2: Model-data comparisons |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
The climate response over northern high latitudes to the mid-Holocene orbital forcing has been investigated in three types of PMIP (Paleoclimate Modelling Intercomparison Project) simulations with different complexity of the modelled climate system. By first undertaking model-data comparison, an objective selection method has been applied to evaluate the capability of the climate models to reproduce the spatial response pattern seen in proxy data. The possible feedback mechanisms behind the climate response have been explored based on the selected model simulations. Subsequent model-model comparisons indicate the importance of including the different physical feedbacks in the climate models. The comparisons between the proxy-based reconstructions and the best fit selected simulations show that over the northern high latitudes, summer temperature change follows closely the insolation change and shows a common feature with strong warming over land and relatively weak warming over ocean at 6 ka compared to 0 ka. Furthermore, the sea-ice-albedo positive feedback enhances this response. The reconstructions of temperature show a stronger response to enhanced insolation in the annual mean temperature than winter and summer temperature. This is verified in the model simulations and the behaviour is attributed to the larger contribution from the large response in autumn. Despite a smaller insolation during winter at 6 ka, a pronounced warming centre is found over Barents Sea in winter in the simulations, which is also supported by the nearby northern Eurasian continental and Fennoscandian reconstructions. This indicates that in the Arctic region, the response of the ocean and the sea ice to the enhanced summer insolation is more important for the winter temperature than the synchronous decrease of the insolation. |
format |
Article in Journal/Newspaper |
author |
K. Holmgren J. Nilsson H. Körnich A. Moberg H. S. Sundqvist Q. Zhang |
author_facet |
K. Holmgren J. Nilsson H. Körnich A. Moberg H. S. Sundqvist Q. Zhang |
author_sort |
K. Holmgren |
title |
Climate change between the mid and late Holocene in northern high latitudes – Part 2: Model-data comparisons |
title_short |
Climate change between the mid and late Holocene in northern high latitudes – Part 2: Model-data comparisons |
title_full |
Climate change between the mid and late Holocene in northern high latitudes – Part 2: Model-data comparisons |
title_fullStr |
Climate change between the mid and late Holocene in northern high latitudes – Part 2: Model-data comparisons |
title_full_unstemmed |
Climate change between the mid and late Holocene in northern high latitudes – Part 2: Model-data comparisons |
title_sort |
climate change between the mid and late holocene in northern high latitudes – part 2: model-data comparisons |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/cp-6-609-2010 https://doaj.org/article/b9cf1fd9fd284c8cb24d7fbfc8a1f034 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
albedo Arctic Barents Sea Climate change Fennoscandian Sea ice |
genre_facet |
albedo Arctic Barents Sea Climate change Fennoscandian Sea ice |
op_source |
Climate of the Past, Vol 6, Iss 5, Pp 609-626 (2010) |
op_relation |
http://www.clim-past.net/6/609/2010/cp-6-609-2010.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 doi:10.5194/cp-6-609-2010 1814-9324 1814-9332 https://doaj.org/article/b9cf1fd9fd284c8cb24d7fbfc8a1f034 |
op_doi |
https://doi.org/10.5194/cp-6-609-2010 |
container_title |
Climate of the Past |
container_volume |
6 |
container_issue |
5 |
container_start_page |
609 |
op_container_end_page |
626 |
_version_ |
1766249890713698304 |