The role of falling ice radiative effects on climate projections over Arctic under global warming
Most global climate models, such as CMIP5 models, ignore the falling ice (snow) radiative effects (FIREs). Extended from our previous works, we explore the impacts of FIREs on the geographical distribution changes of sea ice concentration (SIC), sea ice thickness and skin temperature (Ts) under 1% p...
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ftdoajarticles:oai:doaj.org/article:d3edee0f7e484a6692ba065ebf044247 2023-05-15T14:48:17+02:00 The role of falling ice radiative effects on climate projections over Arctic under global warming Jui-Lin Frank Li Wei-Liang Lee Kuan-Man Xu Jonathan Jiang Eric Fetzer Chao-An Chen Yi-Hui Wang Jia-Yuh Yu Pei-Chun Hsu Huang-Hsiung Hsu 2020-12-01T00:00:00Z https://doi.org/10.3319/TAO.2020.04.29.01 https://doaj.org/article/d3edee0f7e484a6692ba065ebf044247 EN eng Springer http://tao.cgu.org.tw/media/k2/attachments/v316p633.pdf https://doaj.org/toc/1017-0839 https://doaj.org/toc/2311-7680 1017-0839 2311-7680 doi:10.3319/TAO.2020.04.29.01 https://doaj.org/article/d3edee0f7e484a6692ba065ebf044247 Terrestrial, Atmospheric and Oceanic Sciences, Vol 31, Iss 6, Pp 633-648 (2020) Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 article 2020 ftdoajarticles https://doi.org/10.3319/TAO.2020.04.29.01 2022-12-30T23:52:56Z Most global climate models, such as CMIP5 models, ignore the falling ice (snow) radiative effects (FIREs). Extended from our previous works, we explore the impacts of FIREs on the geographical distribution changes of sea ice concentration (SIC), sea ice thickness and skin temperature (Ts) under 1% per year increase of atmospheric CO2 concentration. We perform a pair of 140-year experiments including FIREs (SoN) and excluding FIREs (NoS) using CESM1-CAM5. These two simulations are compared with each other and against CMIP5 multi-model mean without FIREs (CMIP5-NoS). The results show that the changes of SIC, thickness and radiation fields in NoS minus SoN largely match the changes between CMIP5-NoS and SoN in winter but less so in summer and annual mean. Both NoS and CMIP5-NoS simulate less downward longwave and net radiative warming (~20 - 30 W m-2), resulting in colder Ts over Arctic and adjacent lands (~5 - 8 K colder) and stronger meridional temperature gradient, leading to more SIC and thicker sea ice (~30 - 40 cm) over the Arctic ocean. The inclusion of FIREs produces stronger changes in geographic patterns and magnitudes of Ts, SIC and thickness from the first to middle 20 years but less from the middle to last 20 years. The SIC and thickness changes in SoN are associated with warmer Ts, increasing downward surface longwave warming and thus net warming relative to NoS and CMIP5-NoS. With FIREs, the model shows faster warming-driven sea ice retreats and thinning over the entire Arctic ocean, resulting in a sea ice-free Arctic ocean 30 years earlier, as well as much warmer Ts (up to 5 K) over the adjacent lands than in NoS case. Article in Journal/Newspaper Arctic Arctic Ocean Global warming Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Terrestrial, Atmospheric and Oceanic Sciences 31 6 633 648 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 Jui-Lin Frank Li Wei-Liang Lee Kuan-Man Xu Jonathan Jiang Eric Fetzer Chao-An Chen Yi-Hui Wang Jia-Yuh Yu Pei-Chun Hsu Huang-Hsiung Hsu The role of falling ice radiative effects on climate projections over Arctic under global warming |
topic_facet |
Geology QE1-996.5 Geophysics. Cosmic physics QC801-809 |
description |
Most global climate models, such as CMIP5 models, ignore the falling ice (snow) radiative effects (FIREs). Extended from our previous works, we explore the impacts of FIREs on the geographical distribution changes of sea ice concentration (SIC), sea ice thickness and skin temperature (Ts) under 1% per year increase of atmospheric CO2 concentration. We perform a pair of 140-year experiments including FIREs (SoN) and excluding FIREs (NoS) using CESM1-CAM5. These two simulations are compared with each other and against CMIP5 multi-model mean without FIREs (CMIP5-NoS). The results show that the changes of SIC, thickness and radiation fields in NoS minus SoN largely match the changes between CMIP5-NoS and SoN in winter but less so in summer and annual mean. Both NoS and CMIP5-NoS simulate less downward longwave and net radiative warming (~20 - 30 W m-2), resulting in colder Ts over Arctic and adjacent lands (~5 - 8 K colder) and stronger meridional temperature gradient, leading to more SIC and thicker sea ice (~30 - 40 cm) over the Arctic ocean. The inclusion of FIREs produces stronger changes in geographic patterns and magnitudes of Ts, SIC and thickness from the first to middle 20 years but less from the middle to last 20 years. The SIC and thickness changes in SoN are associated with warmer Ts, increasing downward surface longwave warming and thus net warming relative to NoS and CMIP5-NoS. With FIREs, the model shows faster warming-driven sea ice retreats and thinning over the entire Arctic ocean, resulting in a sea ice-free Arctic ocean 30 years earlier, as well as much warmer Ts (up to 5 K) over the adjacent lands than in NoS case. |
format |
Article in Journal/Newspaper |
author |
Jui-Lin Frank Li Wei-Liang Lee Kuan-Man Xu Jonathan Jiang Eric Fetzer Chao-An Chen Yi-Hui Wang Jia-Yuh Yu Pei-Chun Hsu Huang-Hsiung Hsu |
author_facet |
Jui-Lin Frank Li Wei-Liang Lee Kuan-Man Xu Jonathan Jiang Eric Fetzer Chao-An Chen Yi-Hui Wang Jia-Yuh Yu Pei-Chun Hsu Huang-Hsiung Hsu |
author_sort |
Jui-Lin Frank Li |
title |
The role of falling ice radiative effects on climate projections over Arctic under global warming |
title_short |
The role of falling ice radiative effects on climate projections over Arctic under global warming |
title_full |
The role of falling ice radiative effects on climate projections over Arctic under global warming |
title_fullStr |
The role of falling ice radiative effects on climate projections over Arctic under global warming |
title_full_unstemmed |
The role of falling ice radiative effects on climate projections over Arctic under global warming |
title_sort |
role of falling ice radiative effects on climate projections over arctic under global warming |
publisher |
Springer |
publishDate |
2020 |
url |
https://doi.org/10.3319/TAO.2020.04.29.01 https://doaj.org/article/d3edee0f7e484a6692ba065ebf044247 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Global warming Sea ice |
genre_facet |
Arctic Arctic Ocean Global warming Sea ice |
op_source |
Terrestrial, Atmospheric and Oceanic Sciences, Vol 31, Iss 6, Pp 633-648 (2020) |
op_relation |
http://tao.cgu.org.tw/media/k2/attachments/v316p633.pdf https://doaj.org/toc/1017-0839 https://doaj.org/toc/2311-7680 1017-0839 2311-7680 doi:10.3319/TAO.2020.04.29.01 https://doaj.org/article/d3edee0f7e484a6692ba065ebf044247 |
op_doi |
https://doi.org/10.3319/TAO.2020.04.29.01 |
container_title |
Terrestrial, Atmospheric and Oceanic Sciences |
container_volume |
31 |
container_issue |
6 |
container_start_page |
633 |
op_container_end_page |
648 |
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1766319379887161344 |