Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters
The optical chain and logger (OptiCAL) is an autonomous ice-tethered observatory equipped with multiple light sensors for mapping the variation of light with depth. We describe the instrument and present an ensemble calibration for downwelling irradiance EPAR in [µmolm−2s−1]. Results from a long-ter...
Published in: | Applied Optics |
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Main Authors: | , , , , , , , |
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Language: | English |
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2023
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Online Access: | https://pure.uhi.ac.uk/en/publications/ae0cfe1f-5e6a-428f-b040-b6b22e363cef https://doi.org/10.1364/AO.502437 https://pureadmin.uhi.ac.uk/ws/files/49032108/ao-62-31-8308.pdf https://opg.optica.org/abstract.cfm?URI=ao-62-31-8308 |
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ftuhipublicatio:oai:pure.atira.dk:publications/ae0cfe1f-5e6a-428f-b040-b6b22e363cef 2024-06-23T07:50:17+00:00 Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters Schartmüller, Bernhard Anderson, Philip Mckee, David Connan-Mcginty, Stacey Kopec, Tomasz p. Daase, Malin Johnsen, Geir Berge, Jørgen 2023-10-23 application/pdf https://pure.uhi.ac.uk/en/publications/ae0cfe1f-5e6a-428f-b040-b6b22e363cef https://doi.org/10.1364/AO.502437 https://pureadmin.uhi.ac.uk/ws/files/49032108/ao-62-31-8308.pdf https://opg.optica.org/abstract.cfm?URI=ao-62-31-8308 eng eng https://pure.uhi.ac.uk/en/publications/ae0cfe1f-5e6a-428f-b040-b6b22e363cef info:eu-repo/semantics/openAccess Schartmüller , B , Anderson , P , Mckee , D , Connan-Mcginty , S , Kopec , T P , Daase , M , Johnsen , G & Berge , J 2023 , ' Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters ' , Applied Optics , vol. 62 , no. 31 , 8308 . https://doi.org/10.1364/AO.502437 article 2023 ftuhipublicatio https://doi.org/10.1364/AO.502437 2024-06-03T23:48:37Z The optical chain and logger (OptiCAL) is an autonomous ice-tethered observatory equipped with multiple light sensors for mapping the variation of light with depth. We describe the instrument and present an ensemble calibration for downwelling irradiance EPAR in [µmolm−2s−1]. Results from a long-term deployment in the Arctic Ocean demonstrate that the OptiCAL can cover the high dynamic range of under-ice light levels from July to November and produce realistic values in terms of magnitude when compared to modeled surface irradiance. Transient features of raised light levels at specific depths associated with nearby leads in the ice underline the importance of depth-resolved light measurements. Article in Journal/Newspaper Arctic Arctic Ocean ice covered waters University of the Highlands and Islands: Research Database of UHI Arctic Arctic Ocean Applied Optics 62 31 8308 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
description |
The optical chain and logger (OptiCAL) is an autonomous ice-tethered observatory equipped with multiple light sensors for mapping the variation of light with depth. We describe the instrument and present an ensemble calibration for downwelling irradiance EPAR in [µmolm−2s−1]. Results from a long-term deployment in the Arctic Ocean demonstrate that the OptiCAL can cover the high dynamic range of under-ice light levels from July to November and produce realistic values in terms of magnitude when compared to modeled surface irradiance. Transient features of raised light levels at specific depths associated with nearby leads in the ice underline the importance of depth-resolved light measurements. |
format |
Article in Journal/Newspaper |
author |
Schartmüller, Bernhard Anderson, Philip Mckee, David Connan-Mcginty, Stacey Kopec, Tomasz p. Daase, Malin Johnsen, Geir Berge, Jørgen |
spellingShingle |
Schartmüller, Bernhard Anderson, Philip Mckee, David Connan-Mcginty, Stacey Kopec, Tomasz p. Daase, Malin Johnsen, Geir Berge, Jørgen Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters |
author_facet |
Schartmüller, Bernhard Anderson, Philip Mckee, David Connan-Mcginty, Stacey Kopec, Tomasz p. Daase, Malin Johnsen, Geir Berge, Jørgen |
author_sort |
Schartmüller, Bernhard |
title |
Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters |
title_short |
Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters |
title_full |
Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters |
title_fullStr |
Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters |
title_full_unstemmed |
Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters |
title_sort |
development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters |
publishDate |
2023 |
url |
https://pure.uhi.ac.uk/en/publications/ae0cfe1f-5e6a-428f-b040-b6b22e363cef https://doi.org/10.1364/AO.502437 https://pureadmin.uhi.ac.uk/ws/files/49032108/ao-62-31-8308.pdf https://opg.optica.org/abstract.cfm?URI=ao-62-31-8308 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean ice covered waters |
genre_facet |
Arctic Arctic Ocean ice covered waters |
op_source |
Schartmüller , B , Anderson , P , Mckee , D , Connan-Mcginty , S , Kopec , T P , Daase , M , Johnsen , G & Berge , J 2023 , ' Development and calibration of a high dynamic range and autonomous ocean-light instrument to measure sub-surface profiles in ice-covered waters ' , Applied Optics , vol. 62 , no. 31 , 8308 . https://doi.org/10.1364/AO.502437 |
op_relation |
https://pure.uhi.ac.uk/en/publications/ae0cfe1f-5e6a-428f-b040-b6b22e363cef |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1364/AO.502437 |
container_title |
Applied Optics |
container_volume |
62 |
container_issue |
31 |
container_start_page |
8308 |
_version_ |
1802641151254069248 |