On the potential of hand-held GPS tracking of fjord ice features for remote-sensing validation
ABSTRACT Research on young thin sea ice is essential to understand the changes in the Arctic. But it is also the most challenging to investigate, both in situ and from satellites. If satellite remote-sensing techniques are developing rapidly, fieldwork remains crucial for the mandatory validation of...
Published in: | Annals of Glaciology |
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Language: | English |
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Cambridge University Press (CUP)
2017
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Online Access: | http://dx.doi.org/10.1017/aog.2017.35 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305517000350 |
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crcambridgeupr:10.1017/aog.2017.35 2024-06-09T07:38:31+00:00 On the potential of hand-held GPS tracking of fjord ice features for remote-sensing validation Negrel, Jean Gerland, Sebastian Doulgeris, Anthony P. Lauknes, Tom Rune Rouyet, Line 2017 http://dx.doi.org/10.1017/aog.2017.35 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305517000350 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by-nc-sa/4.0/ Annals of Glaciology volume 59, issue 76pt2, page 173-180 ISSN 0260-3055 1727-5644 journal-article 2017 crcambridgeupr https://doi.org/10.1017/aog.2017.35 2024-05-15T13:00:33Z ABSTRACT Research on young thin sea ice is essential to understand the changes in the Arctic. But it is also the most challenging to investigate, both in situ and from satellites. If satellite remote-sensing techniques are developing rapidly, fieldwork remains crucial for the mandatory validation of such data. In April 2016, an Arctic fieldwork campaign was conducted at Kongsfjorden, Svalbard. This campaign provided an opportunity to combine various techniques to record the fjord ice properties ranging from local field sampling to broader ground-based and satellite radar remote sensing of the fjord. Tracking the boat used to access the field sites with hand-held GPS devices offered a good opportunity to map fjord ice and assess the limits of radar identification of small icebergs and thin ice. During 1 week, 17 icebergs and the thin ice edges in two different locations were mapped. The GPS tracks present a good agreement with the Radarsat-2 data analysis for one of the two ice edges. The second ice edge track only partly corresponds to the radar scene. Ice movement, recorded by a ground-based radar, is likely to explain this result. Grounded icebergs could be identified in both Radarsat-2 and ground-based radar. Article in Journal/Newspaper Annals of Glaciology Arctic Iceberg* Kongsfjord* Kongsfjorden Sea ice Svalbard Cambridge University Press Arctic Svalbard Annals of Glaciology 59 76pt2 173 180 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
ABSTRACT Research on young thin sea ice is essential to understand the changes in the Arctic. But it is also the most challenging to investigate, both in situ and from satellites. If satellite remote-sensing techniques are developing rapidly, fieldwork remains crucial for the mandatory validation of such data. In April 2016, an Arctic fieldwork campaign was conducted at Kongsfjorden, Svalbard. This campaign provided an opportunity to combine various techniques to record the fjord ice properties ranging from local field sampling to broader ground-based and satellite radar remote sensing of the fjord. Tracking the boat used to access the field sites with hand-held GPS devices offered a good opportunity to map fjord ice and assess the limits of radar identification of small icebergs and thin ice. During 1 week, 17 icebergs and the thin ice edges in two different locations were mapped. The GPS tracks present a good agreement with the Radarsat-2 data analysis for one of the two ice edges. The second ice edge track only partly corresponds to the radar scene. Ice movement, recorded by a ground-based radar, is likely to explain this result. Grounded icebergs could be identified in both Radarsat-2 and ground-based radar. |
format |
Article in Journal/Newspaper |
author |
Negrel, Jean Gerland, Sebastian Doulgeris, Anthony P. Lauknes, Tom Rune Rouyet, Line |
spellingShingle |
Negrel, Jean Gerland, Sebastian Doulgeris, Anthony P. Lauknes, Tom Rune Rouyet, Line On the potential of hand-held GPS tracking of fjord ice features for remote-sensing validation |
author_facet |
Negrel, Jean Gerland, Sebastian Doulgeris, Anthony P. Lauknes, Tom Rune Rouyet, Line |
author_sort |
Negrel, Jean |
title |
On the potential of hand-held GPS tracking of fjord ice features for remote-sensing validation |
title_short |
On the potential of hand-held GPS tracking of fjord ice features for remote-sensing validation |
title_full |
On the potential of hand-held GPS tracking of fjord ice features for remote-sensing validation |
title_fullStr |
On the potential of hand-held GPS tracking of fjord ice features for remote-sensing validation |
title_full_unstemmed |
On the potential of hand-held GPS tracking of fjord ice features for remote-sensing validation |
title_sort |
on the potential of hand-held gps tracking of fjord ice features for remote-sensing validation |
publisher |
Cambridge University Press (CUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1017/aog.2017.35 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0260305517000350 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Annals of Glaciology Arctic Iceberg* Kongsfjord* Kongsfjorden Sea ice Svalbard |
genre_facet |
Annals of Glaciology Arctic Iceberg* Kongsfjord* Kongsfjorden Sea ice Svalbard |
op_source |
Annals of Glaciology volume 59, issue 76pt2, page 173-180 ISSN 0260-3055 1727-5644 |
op_rights |
http://creativecommons.org/licenses/by-nc-sa/4.0/ |
op_doi |
https://doi.org/10.1017/aog.2017.35 |
container_title |
Annals of Glaciology |
container_volume |
59 |
container_issue |
76pt2 |
container_start_page |
173 |
op_container_end_page |
180 |
_version_ |
1801373416077393920 |