Arctic sea ice and snow cover albedo variability and trends during the last three decades
The aim of the present study is to assess the full effect on the albedo of both sea ice extent decrease and snowline retreat in the Arctic during the last three decades. Averaged over the globe, the overall warming effect due to Arctic land and ocean albedo change corresponds to adding about 44% to...
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ftnipr:oai:nipr.repo.nii.ac.jp:00016487 2023-05-15T13:10:23+02:00 Arctic sea ice and snow cover albedo variability and trends during the last three decades 2021-06 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16487 http://id.nii.ac.jp/1291/00016358/ en eng https://doi.org/10.1016/j.polar.2020.100617 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16487 http://id.nii.ac.jp/1291/00016358/ Polar Science, 28, 100617(2021-06) 18739652 Albedo change Sea ice decrease Snowline retreat Arctic Global climate Journal Article 2021 ftnipr https://doi.org/10.1016/j.polar.2020.100617 2022-12-03T19:43:21Z The aim of the present study is to assess the full effect on the albedo of both sea ice extent decrease and snowline retreat in the Arctic during the last three decades. Averaged over the globe, the overall warming effect due to Arctic land and ocean albedo change corresponds to adding about 44% to the direct effect of human CO2 emissions during the same period. In fact, the area and thickness of Arctic sea ice have both been declining in this time frame. This has caused feedbacks affecting the whole global climate system. One such is albedo feedback of sea ice shrinking which was previously estimated (Pistone et al., 2014) to add about 25% to the direct warming effect of anthropogenic CO2 emissions. In this study, we demonstrate that the role of snowline retreat in albedo decrease is comparable to that of sea ice shrinking. To this aim, we estimate the radiative forcing (W/m2) due to snow and ice decrease during 34 years (1982–2015) from the analysis of changes of observed albedo based on the Clouds and the Earth's Radiant Energy System Energy Balanced And Filled (CERES EBAF) dataset, paired with sea ice and snow cover data from the US National Snow & Ice Data Center (NSIDC). Article in Journal/Newspaper albedo Arctic Polar Science Polar Science Sea ice National Institute of Polar Research Repository, Japan Arctic Polar Science 28 100617 |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
Albedo change Sea ice decrease Snowline retreat Arctic Global climate |
spellingShingle |
Albedo change Sea ice decrease Snowline retreat Arctic Global climate Arctic sea ice and snow cover albedo variability and trends during the last three decades |
topic_facet |
Albedo change Sea ice decrease Snowline retreat Arctic Global climate |
description |
The aim of the present study is to assess the full effect on the albedo of both sea ice extent decrease and snowline retreat in the Arctic during the last three decades. Averaged over the globe, the overall warming effect due to Arctic land and ocean albedo change corresponds to adding about 44% to the direct effect of human CO2 emissions during the same period. In fact, the area and thickness of Arctic sea ice have both been declining in this time frame. This has caused feedbacks affecting the whole global climate system. One such is albedo feedback of sea ice shrinking which was previously estimated (Pistone et al., 2014) to add about 25% to the direct warming effect of anthropogenic CO2 emissions. In this study, we demonstrate that the role of snowline retreat in albedo decrease is comparable to that of sea ice shrinking. To this aim, we estimate the radiative forcing (W/m2) due to snow and ice decrease during 34 years (1982–2015) from the analysis of changes of observed albedo based on the Clouds and the Earth's Radiant Energy System Energy Balanced And Filled (CERES EBAF) dataset, paired with sea ice and snow cover data from the US National Snow & Ice Data Center (NSIDC). |
format |
Article in Journal/Newspaper |
title |
Arctic sea ice and snow cover albedo variability and trends during the last three decades |
title_short |
Arctic sea ice and snow cover albedo variability and trends during the last three decades |
title_full |
Arctic sea ice and snow cover albedo variability and trends during the last three decades |
title_fullStr |
Arctic sea ice and snow cover albedo variability and trends during the last three decades |
title_full_unstemmed |
Arctic sea ice and snow cover albedo variability and trends during the last three decades |
title_sort |
arctic sea ice and snow cover albedo variability and trends during the last three decades |
publishDate |
2021 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16487 http://id.nii.ac.jp/1291/00016358/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic Polar Science Polar Science Sea ice |
genre_facet |
albedo Arctic Polar Science Polar Science Sea ice |
op_relation |
https://doi.org/10.1016/j.polar.2020.100617 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16487 http://id.nii.ac.jp/1291/00016358/ Polar Science, 28, 100617(2021-06) 18739652 |
op_doi |
https://doi.org/10.1016/j.polar.2020.100617 |
container_title |
Polar Science |
container_volume |
28 |
container_start_page |
100617 |
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1766227936867778560 |