Bio-optical characterization and light availability parameterization in Uummannaq Fjord and Vaigat–Disko Bay (West Greenland)
This study investigated the bio-optical conditions of Uummannaq Fjord and Vaigat–Disko Bay, two neighboring, semi-enclosed coastal systems in West Greenland. Though close to each other, the systems differ in their hydrographic structure influencing the bio-optical conditions and, subsequently, the b...
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ftcopernicus:oai:publications.copernicus.org:os30787 2023-05-15T15:05:29+02:00 Bio-optical characterization and light availability parameterization in Uummannaq Fjord and Vaigat–Disko Bay (West Greenland) Holinde, L. Zielinski, O. 2018-01-15 application/pdf https://doi.org/10.5194/os-12-117-2016 https://os.copernicus.org/articles/12/117/2016/ eng eng doi:10.5194/os-12-117-2016 https://os.copernicus.org/articles/12/117/2016/ eISSN: 1812-0792 Text 2018 ftcopernicus https://doi.org/10.5194/os-12-117-2016 2020-07-20T16:24:20Z This study investigated the bio-optical conditions of Uummannaq Fjord and Vaigat–Disko Bay, two neighboring, semi-enclosed coastal systems in West Greenland. Though close to each other, the systems differ in their hydrographic structure influencing the bio-optical conditions and, subsequently, the biological activities. Both systems showed high inorganic suspended particulate matter (SPMi) concentrations near river runoff or meltwater influxes (max. of 15.28 mg L −1 at the surface) and low colored dissolved organic matter (aCDOM@350nm, < 1.50 m −1 ) abundance throughout the systems. High chlorophyll levels (as an indicator of phytoplankton biomass) were measured in the Vaigat (max. of 11.44 µg L −1 ), which represents the outflow arm of Disko Bay. Light penetration depth as indicated by the 1 % depth of photosynthetically available radiation (PAR) was dominated by chlorophyll and SPMi alike, ranging from 12.2 to 41.2 m. Based on these characteristics, an effective two-component parameterization for the diffuse attenuation coefficient k PAR was developed in order to model light penetration depth as a relevant factor for bio-optical studies in Arctic environments under glacial meltwater influence. Text Arctic Disko Bay Greenland Phytoplankton Uummannaq Copernicus Publications: E-Journals Arctic Greenland Uummannaq Fjord ENVELOPE(-52.968,-52.968,70.925,70.925) Vaigat ENVELOPE(-52.947,-52.947,70.200,70.200) Ocean Science 12 1 117 128 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
This study investigated the bio-optical conditions of Uummannaq Fjord and Vaigat–Disko Bay, two neighboring, semi-enclosed coastal systems in West Greenland. Though close to each other, the systems differ in their hydrographic structure influencing the bio-optical conditions and, subsequently, the biological activities. Both systems showed high inorganic suspended particulate matter (SPMi) concentrations near river runoff or meltwater influxes (max. of 15.28 mg L −1 at the surface) and low colored dissolved organic matter (aCDOM@350nm, < 1.50 m −1 ) abundance throughout the systems. High chlorophyll levels (as an indicator of phytoplankton biomass) were measured in the Vaigat (max. of 11.44 µg L −1 ), which represents the outflow arm of Disko Bay. Light penetration depth as indicated by the 1 % depth of photosynthetically available radiation (PAR) was dominated by chlorophyll and SPMi alike, ranging from 12.2 to 41.2 m. Based on these characteristics, an effective two-component parameterization for the diffuse attenuation coefficient k PAR was developed in order to model light penetration depth as a relevant factor for bio-optical studies in Arctic environments under glacial meltwater influence. |
format |
Text |
author |
Holinde, L. Zielinski, O. |
spellingShingle |
Holinde, L. Zielinski, O. Bio-optical characterization and light availability parameterization in Uummannaq Fjord and Vaigat–Disko Bay (West Greenland) |
author_facet |
Holinde, L. Zielinski, O. |
author_sort |
Holinde, L. |
title |
Bio-optical characterization and light availability parameterization in Uummannaq Fjord and Vaigat–Disko Bay (West Greenland) |
title_short |
Bio-optical characterization and light availability parameterization in Uummannaq Fjord and Vaigat–Disko Bay (West Greenland) |
title_full |
Bio-optical characterization and light availability parameterization in Uummannaq Fjord and Vaigat–Disko Bay (West Greenland) |
title_fullStr |
Bio-optical characterization and light availability parameterization in Uummannaq Fjord and Vaigat–Disko Bay (West Greenland) |
title_full_unstemmed |
Bio-optical characterization and light availability parameterization in Uummannaq Fjord and Vaigat–Disko Bay (West Greenland) |
title_sort |
bio-optical characterization and light availability parameterization in uummannaq fjord and vaigat–disko bay (west greenland) |
publishDate |
2018 |
url |
https://doi.org/10.5194/os-12-117-2016 https://os.copernicus.org/articles/12/117/2016/ |
long_lat |
ENVELOPE(-52.968,-52.968,70.925,70.925) ENVELOPE(-52.947,-52.947,70.200,70.200) |
geographic |
Arctic Greenland Uummannaq Fjord Vaigat |
geographic_facet |
Arctic Greenland Uummannaq Fjord Vaigat |
genre |
Arctic Disko Bay Greenland Phytoplankton Uummannaq |
genre_facet |
Arctic Disko Bay Greenland Phytoplankton Uummannaq |
op_source |
eISSN: 1812-0792 |
op_relation |
doi:10.5194/os-12-117-2016 https://os.copernicus.org/articles/12/117/2016/ |
op_doi |
https://doi.org/10.5194/os-12-117-2016 |
container_title |
Ocean Science |
container_volume |
12 |
container_issue |
1 |
container_start_page |
117 |
op_container_end_page |
128 |
_version_ |
1766337174421110784 |