Arctic sea ice albedo: Spectral composition, spatial heterogeneity, and temporal evolution observed during the MOSAiC drift
The magnitude, spectral composition, and variability of the Arctic sea ice surface albedo are key to understanding and numerically simulating Earth’s shortwave energy budget. Spectral and broadband albedos of Arctic sea ice were spatially and temporally sampled by on-ice observers along individual s...
Published in: | Elementa: Science of the Anthropocene |
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University of California Press
2022
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Online Access: | http://dx.doi.org/10.1525/elementa.2021.000103 https://online.ucpress.edu/elementa/article-pdf/doi/10.1525/elementa.2021.000103/738940/elementa.2021.000103.pdf |
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crunicaliforniap:10.1525/elementa.2021.000103 2024-09-30T14:21:51+00:00 Arctic sea ice albedo: Spectral composition, spatial heterogeneity, and temporal evolution observed during the MOSAiC drift Light, Bonnie Smith, Madison M. Perovich, Donald K. Webster, Melinda A. Holland, Marika M. Linhardt, Felix Raphael, Ian A. Clemens-Sewall, David Macfarlane, Amy R. Anhaus, Philipp Bailey, David A. 2022 http://dx.doi.org/10.1525/elementa.2021.000103 https://online.ucpress.edu/elementa/article-pdf/doi/10.1525/elementa.2021.000103/738940/elementa.2021.000103.pdf en eng University of California Press http://creativecommons.org/licenses/by/4.0/ Elementa: Science of the Anthropocene volume 10, issue 1 ISSN 2325-1026 journal-article 2022 crunicaliforniap https://doi.org/10.1525/elementa.2021.000103 2024-09-12T05:01:44Z The magnitude, spectral composition, and variability of the Arctic sea ice surface albedo are key to understanding and numerically simulating Earth’s shortwave energy budget. Spectral and broadband albedos of Arctic sea ice were spatially and temporally sampled by on-ice observers along individual survey lines throughout the sunlit season (April–September, 2020) during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition. The seasonal evolution of albedo for the MOSAiC year was constructed from spatially averaged broadband albedo values for each line. Specific locations were identified as representative of individual ice surface types, including accumulated dry snow, melting snow, bare and melting ice, melting and refreezing ponded ice, and sediment-laden ice. The area-averaged seasonal progression of total albedo recorded during MOSAiC showed remarkable similarity to that recorded 22 years prior on multiyear sea ice during the Surface Heat Budget of the Arctic Ocean (SHEBA) expedition. In accord with these and other previous field efforts, the spectral albedo of relatively thick, snow-free, melting sea ice shows invariance across location, decade, and ice type. In particular, the albedo of snow-free, melting seasonal ice was indistinguishable from that of snow-free, melting second-year ice, suggesting that the highly scattering surface layer that forms on sea ice during the summer is robust and stabilizing. In contrast, the albedo of ponded ice was observed to be highly variable at visible wavelengths. Notable temporal changes in albedo were documented during melt and freeze onset, formation and deepening of melt ponds, and during melt evolution of sediment-laden ice. While model simulations show considerable agreement with the observed seasonal albedo progression, disparities suggest the need to improve how the albedo of both ponded ice and thin, melting ice are simulated. Article in Journal/Newspaper albedo Arctic Arctic Ocean Sea ice Surface Heat Budget of the Arctic Ocean University of California Press Arctic Arctic Ocean Elementa: Science of the Anthropocene 10 1 |
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Open Polar |
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University of California Press |
op_collection_id |
crunicaliforniap |
language |
English |
description |
The magnitude, spectral composition, and variability of the Arctic sea ice surface albedo are key to understanding and numerically simulating Earth’s shortwave energy budget. Spectral and broadband albedos of Arctic sea ice were spatially and temporally sampled by on-ice observers along individual survey lines throughout the sunlit season (April–September, 2020) during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition. The seasonal evolution of albedo for the MOSAiC year was constructed from spatially averaged broadband albedo values for each line. Specific locations were identified as representative of individual ice surface types, including accumulated dry snow, melting snow, bare and melting ice, melting and refreezing ponded ice, and sediment-laden ice. The area-averaged seasonal progression of total albedo recorded during MOSAiC showed remarkable similarity to that recorded 22 years prior on multiyear sea ice during the Surface Heat Budget of the Arctic Ocean (SHEBA) expedition. In accord with these and other previous field efforts, the spectral albedo of relatively thick, snow-free, melting sea ice shows invariance across location, decade, and ice type. In particular, the albedo of snow-free, melting seasonal ice was indistinguishable from that of snow-free, melting second-year ice, suggesting that the highly scattering surface layer that forms on sea ice during the summer is robust and stabilizing. In contrast, the albedo of ponded ice was observed to be highly variable at visible wavelengths. Notable temporal changes in albedo were documented during melt and freeze onset, formation and deepening of melt ponds, and during melt evolution of sediment-laden ice. While model simulations show considerable agreement with the observed seasonal albedo progression, disparities suggest the need to improve how the albedo of both ponded ice and thin, melting ice are simulated. |
format |
Article in Journal/Newspaper |
author |
Light, Bonnie Smith, Madison M. Perovich, Donald K. Webster, Melinda A. Holland, Marika M. Linhardt, Felix Raphael, Ian A. Clemens-Sewall, David Macfarlane, Amy R. Anhaus, Philipp Bailey, David A. |
spellingShingle |
Light, Bonnie Smith, Madison M. Perovich, Donald K. Webster, Melinda A. Holland, Marika M. Linhardt, Felix Raphael, Ian A. Clemens-Sewall, David Macfarlane, Amy R. Anhaus, Philipp Bailey, David A. Arctic sea ice albedo: Spectral composition, spatial heterogeneity, and temporal evolution observed during the MOSAiC drift |
author_facet |
Light, Bonnie Smith, Madison M. Perovich, Donald K. Webster, Melinda A. Holland, Marika M. Linhardt, Felix Raphael, Ian A. Clemens-Sewall, David Macfarlane, Amy R. Anhaus, Philipp Bailey, David A. |
author_sort |
Light, Bonnie |
title |
Arctic sea ice albedo: Spectral composition, spatial heterogeneity, and temporal evolution observed during the MOSAiC drift |
title_short |
Arctic sea ice albedo: Spectral composition, spatial heterogeneity, and temporal evolution observed during the MOSAiC drift |
title_full |
Arctic sea ice albedo: Spectral composition, spatial heterogeneity, and temporal evolution observed during the MOSAiC drift |
title_fullStr |
Arctic sea ice albedo: Spectral composition, spatial heterogeneity, and temporal evolution observed during the MOSAiC drift |
title_full_unstemmed |
Arctic sea ice albedo: Spectral composition, spatial heterogeneity, and temporal evolution observed during the MOSAiC drift |
title_sort |
arctic sea ice albedo: spectral composition, spatial heterogeneity, and temporal evolution observed during the mosaic drift |
publisher |
University of California Press |
publishDate |
2022 |
url |
http://dx.doi.org/10.1525/elementa.2021.000103 https://online.ucpress.edu/elementa/article-pdf/doi/10.1525/elementa.2021.000103/738940/elementa.2021.000103.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
albedo Arctic Arctic Ocean Sea ice Surface Heat Budget of the Arctic Ocean |
genre_facet |
albedo Arctic Arctic Ocean Sea ice Surface Heat Budget of the Arctic Ocean |
op_source |
Elementa: Science of the Anthropocene volume 10, issue 1 ISSN 2325-1026 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1525/elementa.2021.000103 |
container_title |
Elementa: Science of the Anthropocene |
container_volume |
10 |
container_issue |
1 |
_version_ |
1811644373243265024 |