A Comparison of Decimeter Scale Variations of Physical and Photobiological Parameters in a Late Winter First-Year Sea Ice in Southwest Greenland
Small-scale variation in the physical and biological properties of sea ice was examined by collecting nine sea ice cores within 1 m2 in a land-fast first-year ice in southwest Greenland in late winter. Cores were sectioned in four segments and sea ice physical, biological, and photobiological parame...
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Multidisciplinary Digital Publishing Institute
2021
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Online Access: | https://doi.org/10.3390/jmse9010060 |
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ftmdpi:oai:mdpi.com:/2077-1312/9/1/60/ 2023-08-20T04:06:51+02:00 A Comparison of Decimeter Scale Variations of Physical and Photobiological Parameters in a Late Winter First-Year Sea Ice in Southwest Greenland Lars Chresten Lund-Hansen Clara Marie Petersen Dorte Haubjerg Søgaard Brian Keith Sorrell agris 2021-01-07 application/pdf https://doi.org/10.3390/jmse9010060 EN eng Multidisciplinary Digital Publishing Institute Marine Environmental Science https://dx.doi.org/10.3390/jmse9010060 https://creativecommons.org/licenses/by/4.0/ Journal of Marine Science and Engineering; Volume 9; Issue 1; Pages: 60 sea ice physical and photobiological parameters Phyto-PAM spatial variability Greenland Text 2021 ftmdpi https://doi.org/10.3390/jmse9010060 2023-08-01T00:49:27Z Small-scale variation in the physical and biological properties of sea ice was examined by collecting nine sea ice cores within 1 m2 in a land-fast first-year ice in southwest Greenland in late winter. Cores were sectioned in four segments and sea ice physical, biological, and photobiological parameters were measured. The main purpose was to explore the decimeter-scale horizontal and vertical variations in common sea ice parameters. ANOVA analyses revealed significant within-core variations for bulk salinity, brine salinity, brine volume, gas volume, chlorophyll a (Chl a), and the maximum light-limited photosynthetic efficiency (α). Only temperature and bulk salinity variations were significant between cores, and no significant variations were found within or between cores for other photobiological parameters. Power analyses were applied to determine the number of replicates needed to achieve a significance at p < 0.05 with sufficient power, and showed a minimum of four and preferably five replicate cores to detect the observed variability in this first-year ice. It is emphasized that these results only apply to this type of first-year ice in late winter/early spring, and that different variations may apply to other types of ice. Text Greenland Sea ice MDPI Open Access Publishing Greenland Journal of Marine Science and Engineering 9 1 60 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
sea ice physical and photobiological parameters Phyto-PAM spatial variability Greenland |
spellingShingle |
sea ice physical and photobiological parameters Phyto-PAM spatial variability Greenland Lars Chresten Lund-Hansen Clara Marie Petersen Dorte Haubjerg Søgaard Brian Keith Sorrell A Comparison of Decimeter Scale Variations of Physical and Photobiological Parameters in a Late Winter First-Year Sea Ice in Southwest Greenland |
topic_facet |
sea ice physical and photobiological parameters Phyto-PAM spatial variability Greenland |
description |
Small-scale variation in the physical and biological properties of sea ice was examined by collecting nine sea ice cores within 1 m2 in a land-fast first-year ice in southwest Greenland in late winter. Cores were sectioned in four segments and sea ice physical, biological, and photobiological parameters were measured. The main purpose was to explore the decimeter-scale horizontal and vertical variations in common sea ice parameters. ANOVA analyses revealed significant within-core variations for bulk salinity, brine salinity, brine volume, gas volume, chlorophyll a (Chl a), and the maximum light-limited photosynthetic efficiency (α). Only temperature and bulk salinity variations were significant between cores, and no significant variations were found within or between cores for other photobiological parameters. Power analyses were applied to determine the number of replicates needed to achieve a significance at p < 0.05 with sufficient power, and showed a minimum of four and preferably five replicate cores to detect the observed variability in this first-year ice. It is emphasized that these results only apply to this type of first-year ice in late winter/early spring, and that different variations may apply to other types of ice. |
format |
Text |
author |
Lars Chresten Lund-Hansen Clara Marie Petersen Dorte Haubjerg Søgaard Brian Keith Sorrell |
author_facet |
Lars Chresten Lund-Hansen Clara Marie Petersen Dorte Haubjerg Søgaard Brian Keith Sorrell |
author_sort |
Lars Chresten Lund-Hansen |
title |
A Comparison of Decimeter Scale Variations of Physical and Photobiological Parameters in a Late Winter First-Year Sea Ice in Southwest Greenland |
title_short |
A Comparison of Decimeter Scale Variations of Physical and Photobiological Parameters in a Late Winter First-Year Sea Ice in Southwest Greenland |
title_full |
A Comparison of Decimeter Scale Variations of Physical and Photobiological Parameters in a Late Winter First-Year Sea Ice in Southwest Greenland |
title_fullStr |
A Comparison of Decimeter Scale Variations of Physical and Photobiological Parameters in a Late Winter First-Year Sea Ice in Southwest Greenland |
title_full_unstemmed |
A Comparison of Decimeter Scale Variations of Physical and Photobiological Parameters in a Late Winter First-Year Sea Ice in Southwest Greenland |
title_sort |
comparison of decimeter scale variations of physical and photobiological parameters in a late winter first-year sea ice in southwest greenland |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/jmse9010060 |
op_coverage |
agris |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Sea ice |
genre_facet |
Greenland Sea ice |
op_source |
Journal of Marine Science and Engineering; Volume 9; Issue 1; Pages: 60 |
op_relation |
Marine Environmental Science https://dx.doi.org/10.3390/jmse9010060 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/jmse9010060 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
9 |
container_issue |
1 |
container_start_page |
60 |
_version_ |
1774718189858455552 |