Considerable Uncertainty of Simulated Arctic Temperature Change in the Mid‐Holocene Due To Initial Ocean Perturbation
Abstract Arctic temperature is one of the most uncertain aspects of mid‐Holocene (MH) climate change modeling, usually attributed to the different responses of different models to external forcing. However, in this study, we find that significant discrepancies (i.e., the noise is close to the signal...
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ftdoajarticles:oai:doaj.org/article:75bf4604a2394e969dd5f9e3c5ddd0ca 2024-09-15T17:35:47+00:00 Considerable Uncertainty of Simulated Arctic Temperature Change in the Mid‐Holocene Due To Initial Ocean Perturbation Jian Shi Gerrit Lohmann 2024-02-01T00:00:00Z https://doi.org/10.1029/2023GL106337 https://doaj.org/article/75bf4604a2394e969dd5f9e3c5ddd0ca EN eng Wiley https://doi.org/10.1029/2023GL106337 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL106337 https://doaj.org/article/75bf4604a2394e969dd5f9e3c5ddd0ca Geophysical Research Letters, Vol 51, Iss 4, Pp n/a-n/a (2024) mid‐Holocene Arctic temperature uncertainty modeling initial perturbation Geophysics. Cosmic physics QC801-809 article 2024 ftdoajarticles https://doi.org/10.1029/2023GL106337 2024-08-05T17:49:23Z Abstract Arctic temperature is one of the most uncertain aspects of mid‐Holocene (MH) climate change modeling, usually attributed to the different responses of different models to external forcing. However, in this study, we find that significant discrepancies (i.e., the noise is close to the signal in term of climate change) in the MH Arctic temperature changes can occur within the same model and for identical external forcing due to initial ocean condition perturbations. It is shown that initial ocean perturbations can affect the surface energy budget change through the uncertain cloud effect on shortwave radiation in boreal summer. The resulted uncertain change in summer surface heat flux alters the subsequent autumn and winter sea ice and contributes to significant differences in Arctic temperature via sea ice‐albedo feedback. This study suggests that internal uncertainty of an individual model is a non‐negligible source of overall uncertainty in simulating the MH Arctic temperature change. Article in Journal/Newspaper albedo Climate change Sea ice Directory of Open Access Journals: DOAJ Articles Geophysical Research Letters 51 4 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
mid‐Holocene Arctic temperature uncertainty modeling initial perturbation Geophysics. Cosmic physics QC801-809 |
spellingShingle |
mid‐Holocene Arctic temperature uncertainty modeling initial perturbation Geophysics. Cosmic physics QC801-809 Jian Shi Gerrit Lohmann Considerable Uncertainty of Simulated Arctic Temperature Change in the Mid‐Holocene Due To Initial Ocean Perturbation |
topic_facet |
mid‐Holocene Arctic temperature uncertainty modeling initial perturbation Geophysics. Cosmic physics QC801-809 |
description |
Abstract Arctic temperature is one of the most uncertain aspects of mid‐Holocene (MH) climate change modeling, usually attributed to the different responses of different models to external forcing. However, in this study, we find that significant discrepancies (i.e., the noise is close to the signal in term of climate change) in the MH Arctic temperature changes can occur within the same model and for identical external forcing due to initial ocean condition perturbations. It is shown that initial ocean perturbations can affect the surface energy budget change through the uncertain cloud effect on shortwave radiation in boreal summer. The resulted uncertain change in summer surface heat flux alters the subsequent autumn and winter sea ice and contributes to significant differences in Arctic temperature via sea ice‐albedo feedback. This study suggests that internal uncertainty of an individual model is a non‐negligible source of overall uncertainty in simulating the MH Arctic temperature change. |
format |
Article in Journal/Newspaper |
author |
Jian Shi Gerrit Lohmann |
author_facet |
Jian Shi Gerrit Lohmann |
author_sort |
Jian Shi |
title |
Considerable Uncertainty of Simulated Arctic Temperature Change in the Mid‐Holocene Due To Initial Ocean Perturbation |
title_short |
Considerable Uncertainty of Simulated Arctic Temperature Change in the Mid‐Holocene Due To Initial Ocean Perturbation |
title_full |
Considerable Uncertainty of Simulated Arctic Temperature Change in the Mid‐Holocene Due To Initial Ocean Perturbation |
title_fullStr |
Considerable Uncertainty of Simulated Arctic Temperature Change in the Mid‐Holocene Due To Initial Ocean Perturbation |
title_full_unstemmed |
Considerable Uncertainty of Simulated Arctic Temperature Change in the Mid‐Holocene Due To Initial Ocean Perturbation |
title_sort |
considerable uncertainty of simulated arctic temperature change in the mid‐holocene due to initial ocean perturbation |
publisher |
Wiley |
publishDate |
2024 |
url |
https://doi.org/10.1029/2023GL106337 https://doaj.org/article/75bf4604a2394e969dd5f9e3c5ddd0ca |
genre |
albedo Climate change Sea ice |
genre_facet |
albedo Climate change Sea ice |
op_source |
Geophysical Research Letters, Vol 51, Iss 4, Pp n/a-n/a (2024) |
op_relation |
https://doi.org/10.1029/2023GL106337 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL106337 https://doaj.org/article/75bf4604a2394e969dd5f9e3c5ddd0ca |
op_doi |
https://doi.org/10.1029/2023GL106337 |
container_title |
Geophysical Research Letters |
container_volume |
51 |
container_issue |
4 |
_version_ |
1810479347415384064 |