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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ftdoajarticles:oai:doaj.org/article:61b80b6088444120ad2a918d56ce0636 2023-05-15T14:49:21+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 2022-03-01T00:00:00Z https://doi.org/10.3390/rs14061325 https://doaj.org/article/61b80b6088444120ad2a918d56ce0636 EN eng MDPI AG https://www.mdpi.com/2072-4292/14/6/1325 https://doaj.org/toc/2072-4292 doi:10.3390/rs14061325 2072-4292 https://doaj.org/article/61b80b6088444120ad2a918d56ce0636 Remote Sensing, Vol 14, Iss 1325, p 1325 (2022) underwater hyperspectral imaging (UHI) mini ROV (Remotely Operated Vehicle) in situ/in vivo spectral reflectance underwater habitat mapping Svalbard arctic Science Q article 2022 ftdoajarticles https://doi.org/10.3390/rs14061325 2022-12-31T08:22:56Z 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. Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden polar night Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Remote Sensing 14 6 1325 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
underwater hyperspectral imaging (UHI) mini ROV (Remotely Operated Vehicle) in situ/in vivo spectral reflectance underwater habitat mapping Svalbard arctic Science Q |
spellingShingle |
underwater hyperspectral imaging (UHI) mini ROV (Remotely Operated Vehicle) in situ/in vivo spectral reflectance underwater habitat mapping Svalbard arctic Science Q 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 Science Q |
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 |
Article in Journal/Newspaper |
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 |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14061325 https://doaj.org/article/61b80b6088444120ad2a918d56ce0636 |
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, Vol 14, Iss 1325, p 1325 (2022) |
op_relation |
https://www.mdpi.com/2072-4292/14/6/1325 https://doaj.org/toc/2072-4292 doi:10.3390/rs14061325 2072-4292 https://doaj.org/article/61b80b6088444120ad2a918d56ce0636 |
op_doi |
https://doi.org/10.3390/rs14061325 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
6 |
container_start_page |
1325 |
_version_ |
1766320411395489792 |