Can we extend local sea-ice measurements to satellite scale? An example from the N-ICE2015 expedition
Knowledge of Arctic sea-ice conditions is of great interest for Arctic residents, as well as for commercial usage, and to study the effects of climate change. Information gained from analysis of satellite data contributes to this understanding. In the course of using in situ data in combination with...
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Cambridge University Press
2018
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Online Access: | https://doi.org/10.1017/aog.2017.37 https://doaj.org/article/92cec6abf1c34a389e9f7a461b5b9b31 |
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ftdoajarticles:oai:doaj.org/article:92cec6abf1c34a389e9f7a461b5b9b31 2023-05-15T13:29:34+02:00 Can we extend local sea-ice measurements to satellite scale? An example from the N-ICE2015 expedition Anja Rösel Jennifer King Anthony P. Doulgeris Penelope M. Wagner A. Malin Johansson Sebastian Gerland 2018-07-01T00:00:00Z https://doi.org/10.1017/aog.2017.37 https://doaj.org/article/92cec6abf1c34a389e9f7a461b5b9b31 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0260305517000374/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2017.37 0260-3055 1727-5644 https://doaj.org/article/92cec6abf1c34a389e9f7a461b5b9b31 Annals of Glaciology, Vol 59, Pp 163-172 (2018) airborne electromagnetic soundings electromagnetic induction remote sensing sea-ice sea-ice classification Meteorology. Climatology QC851-999 article 2018 ftdoajarticles https://doi.org/10.1017/aog.2017.37 2023-03-12T01:31:57Z Knowledge of Arctic sea-ice conditions is of great interest for Arctic residents, as well as for commercial usage, and to study the effects of climate change. Information gained from analysis of satellite data contributes to this understanding. In the course of using in situ data in combination with remotely sensed data, the question of how representative local scale measurements are of a wider region may arise. We compare in situ total sea-ice thickness measurements from the Norwegian young sea ICE expedition in the area north of Svalbard with airborne-derived total sea-ice thickness from electromagnetic soundings. A segmented and classified synthetic aperture radar (SAR) quad-pol ALOS-2 Palsar-2 satellite scene was grouped into three simplified ice classes. The area fractions of the three classes are: 11.2% ‘thin’, 74.4% ‘level’, and 14.4% ‘deformed’. The area fractions of the simplified classes from ground- and helicopter-based measurements are comparable with those achieved from the SAR data. Thus, this study shows that there is potential for a stepwise upscaling from in situ, to airborne, to satellite data, which allow us to assess whether in situ data collected are representative of a wider region as observed by satellites. Article in Journal/Newspaper Annals of Glaciology Arctic Climate change Sea ice Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Annals of Glaciology 59 76pt2 163 172 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
airborne electromagnetic soundings electromagnetic induction remote sensing sea-ice sea-ice classification Meteorology. Climatology QC851-999 |
spellingShingle |
airborne electromagnetic soundings electromagnetic induction remote sensing sea-ice sea-ice classification Meteorology. Climatology QC851-999 Anja Rösel Jennifer King Anthony P. Doulgeris Penelope M. Wagner A. Malin Johansson Sebastian Gerland Can we extend local sea-ice measurements to satellite scale? An example from the N-ICE2015 expedition |
topic_facet |
airborne electromagnetic soundings electromagnetic induction remote sensing sea-ice sea-ice classification Meteorology. Climatology QC851-999 |
description |
Knowledge of Arctic sea-ice conditions is of great interest for Arctic residents, as well as for commercial usage, and to study the effects of climate change. Information gained from analysis of satellite data contributes to this understanding. In the course of using in situ data in combination with remotely sensed data, the question of how representative local scale measurements are of a wider region may arise. We compare in situ total sea-ice thickness measurements from the Norwegian young sea ICE expedition in the area north of Svalbard with airborne-derived total sea-ice thickness from electromagnetic soundings. A segmented and classified synthetic aperture radar (SAR) quad-pol ALOS-2 Palsar-2 satellite scene was grouped into three simplified ice classes. The area fractions of the three classes are: 11.2% ‘thin’, 74.4% ‘level’, and 14.4% ‘deformed’. The area fractions of the simplified classes from ground- and helicopter-based measurements are comparable with those achieved from the SAR data. Thus, this study shows that there is potential for a stepwise upscaling from in situ, to airborne, to satellite data, which allow us to assess whether in situ data collected are representative of a wider region as observed by satellites. |
format |
Article in Journal/Newspaper |
author |
Anja Rösel Jennifer King Anthony P. Doulgeris Penelope M. Wagner A. Malin Johansson Sebastian Gerland |
author_facet |
Anja Rösel Jennifer King Anthony P. Doulgeris Penelope M. Wagner A. Malin Johansson Sebastian Gerland |
author_sort |
Anja Rösel |
title |
Can we extend local sea-ice measurements to satellite scale? An example from the N-ICE2015 expedition |
title_short |
Can we extend local sea-ice measurements to satellite scale? An example from the N-ICE2015 expedition |
title_full |
Can we extend local sea-ice measurements to satellite scale? An example from the N-ICE2015 expedition |
title_fullStr |
Can we extend local sea-ice measurements to satellite scale? An example from the N-ICE2015 expedition |
title_full_unstemmed |
Can we extend local sea-ice measurements to satellite scale? An example from the N-ICE2015 expedition |
title_sort |
can we extend local sea-ice measurements to satellite scale? an example from the n-ice2015 expedition |
publisher |
Cambridge University Press |
publishDate |
2018 |
url |
https://doi.org/10.1017/aog.2017.37 https://doaj.org/article/92cec6abf1c34a389e9f7a461b5b9b31 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Annals of Glaciology Arctic Climate change Sea ice Svalbard |
genre_facet |
Annals of Glaciology Arctic Climate change Sea ice Svalbard |
op_source |
Annals of Glaciology, Vol 59, Pp 163-172 (2018) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0260305517000374/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2017.37 0260-3055 1727-5644 https://doaj.org/article/92cec6abf1c34a389e9f7a461b5b9b31 |
op_doi |
https://doi.org/10.1017/aog.2017.37 |
container_title |
Annals of Glaciology |
container_volume |
59 |
container_issue |
76pt2 |
container_start_page |
163 |
op_container_end_page |
172 |
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1766001240866553856 |