Underwater Hyperspectral Imaging of Arctic Macroalgal Habitats during the Polar Night Using a Novel Mini-ROV-UHI Portable System
We describe an Underwater Hyperspectral Imager (UHI) deployed on an instrument-carrying platform consisting of two interconnected mini-ROVs (Remotely Operated Vehicle) for the mapping and monitoring of Arctic macroalgal habitats in Kongsfjorden (Svalbard) during the Polar Night. The mini-ROV-UHI sys...
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2022
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ftmdpi:oai:mdpi.com:/2072-4292/14/6/1325/ 2023-08-20T04:03:55+02:00 Underwater Hyperspectral Imaging of Arctic Macroalgal Habitats during the Polar Night Using a Novel Mini-ROV-UHI Portable System Natalie Summers Geir Johnsen Aksel Mogstad Håvard Løvås Glaucia Fragoso Jørgen Berge agris 2022-03-09 application/pdf https://doi.org/10.3390/rs14061325 EN eng Multidisciplinary Digital Publishing Institute Ocean Remote Sensing https://dx.doi.org/10.3390/rs14061325 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 14; Issue 6; Pages: 1325 underwater hyperspectral imaging (UHI) mini ROV (Remotely Operated Vehicle) in situ/in vivo spectral reflectance underwater habitat mapping Svalbard arctic phaeophytes chlorophytes rhodophytes polar night Text 2022 ftmdpi https://doi.org/10.3390/rs14061325 2023-08-01T04:24:32Z We describe an Underwater Hyperspectral Imager (UHI) deployed on an instrument-carrying platform consisting of two interconnected mini-ROVs (Remotely Operated Vehicle) for the mapping and monitoring of Arctic macroalgal habitats in Kongsfjorden (Svalbard) during the Polar Night. The mini-ROV-UHI system is easy to transport, assemble and deploy from shore, even under the dark, icy and cold conditions of the Arctic Polar Night. The system can be operated by two persons, keeping the operational costs low. In vivo hyperspectral reflectance of collected specimens of brown, red and green macroalgae was measured with a spectrometer in the lab to provide a spectral library for supervised pigment group classification based on UHI photomosaics. The in situ UHI-photomosaics provided detailed information of the areal coverage of the seafloor substrate (16%), as well as brown (51% habitat cover), red (18%), and green (14%) macroalgae, with spatial resolution in the range of cm and spectral resolution of 2 nm. The collected specimens from the mapped area were also used for species identification and health state evaluation. This innovative UHI sampling method provides significant information about macroalgal distribution and physiology, and due to its flexibility in terms of deployment, it is applicable to a variety of environments. Text Arctic Kongsfjord* Kongsfjorden polar night Svalbard MDPI Open Access Publishing Arctic Svalbard Remote Sensing 14 6 1325 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
underwater hyperspectral imaging (UHI) mini ROV (Remotely Operated Vehicle) in situ/in vivo spectral reflectance underwater habitat mapping Svalbard arctic phaeophytes chlorophytes rhodophytes polar night |
spellingShingle |
underwater hyperspectral imaging (UHI) mini ROV (Remotely Operated Vehicle) in situ/in vivo spectral reflectance underwater habitat mapping Svalbard arctic phaeophytes chlorophytes rhodophytes polar night Natalie Summers Geir Johnsen Aksel Mogstad Håvard Løvås Glaucia Fragoso Jørgen Berge Underwater Hyperspectral Imaging of Arctic Macroalgal Habitats during the Polar Night Using a Novel Mini-ROV-UHI Portable System |
topic_facet |
underwater hyperspectral imaging (UHI) mini ROV (Remotely Operated Vehicle) in situ/in vivo spectral reflectance underwater habitat mapping Svalbard arctic phaeophytes chlorophytes rhodophytes polar night |
description |
We describe an Underwater Hyperspectral Imager (UHI) deployed on an instrument-carrying platform consisting of two interconnected mini-ROVs (Remotely Operated Vehicle) for the mapping and monitoring of Arctic macroalgal habitats in Kongsfjorden (Svalbard) during the Polar Night. The mini-ROV-UHI system is easy to transport, assemble and deploy from shore, even under the dark, icy and cold conditions of the Arctic Polar Night. The system can be operated by two persons, keeping the operational costs low. In vivo hyperspectral reflectance of collected specimens of brown, red and green macroalgae was measured with a spectrometer in the lab to provide a spectral library for supervised pigment group classification based on UHI photomosaics. The in situ UHI-photomosaics provided detailed information of the areal coverage of the seafloor substrate (16%), as well as brown (51% habitat cover), red (18%), and green (14%) macroalgae, with spatial resolution in the range of cm and spectral resolution of 2 nm. The collected specimens from the mapped area were also used for species identification and health state evaluation. This innovative UHI sampling method provides significant information about macroalgal distribution and physiology, and due to its flexibility in terms of deployment, it is applicable to a variety of environments. |
format |
Text |
author |
Natalie Summers Geir Johnsen Aksel Mogstad Håvard Løvås Glaucia Fragoso Jørgen Berge |
author_facet |
Natalie Summers Geir Johnsen Aksel Mogstad Håvard Løvås Glaucia Fragoso Jørgen Berge |
author_sort |
Natalie Summers |
title |
Underwater Hyperspectral Imaging of Arctic Macroalgal Habitats during the Polar Night Using a Novel Mini-ROV-UHI Portable System |
title_short |
Underwater Hyperspectral Imaging of Arctic Macroalgal Habitats during the Polar Night Using a Novel Mini-ROV-UHI Portable System |
title_full |
Underwater Hyperspectral Imaging of Arctic Macroalgal Habitats during the Polar Night Using a Novel Mini-ROV-UHI Portable System |
title_fullStr |
Underwater Hyperspectral Imaging of Arctic Macroalgal Habitats during the Polar Night Using a Novel Mini-ROV-UHI Portable System |
title_full_unstemmed |
Underwater Hyperspectral Imaging of Arctic Macroalgal Habitats during the Polar Night Using a Novel Mini-ROV-UHI Portable System |
title_sort |
underwater hyperspectral imaging of arctic macroalgal habitats during the polar night using a novel mini-rov-uhi portable system |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14061325 |
op_coverage |
agris |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Kongsfjord* Kongsfjorden polar night Svalbard |
genre_facet |
Arctic Kongsfjord* Kongsfjorden polar night Svalbard |
op_source |
Remote Sensing; Volume 14; Issue 6; Pages: 1325 |
op_relation |
Ocean Remote Sensing https://dx.doi.org/10.3390/rs14061325 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs14061325 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
6 |
container_start_page |
1325 |
_version_ |
1774714350038155264 |