Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season
Understanding ice conditions in fjords is imperative to ensure safe operations and to protect the surrounding environment. Seven fjords in northern Norway were visited in March 2019, six with significant ice cover. In each location, measurements of ocean temperature and salinity, and δ18O for ocean...
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ftsintef:oai:sintef.brage.unit.no:11250/2716074 2023-05-15T17:43:28+02:00 Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season O'Sadnick, Megan Petrich, Chris Kleven, Øystein Skardhamar, Jofrid Brekke, Camilla 2020 application/pdf https://hdl.handle.net/11250/2716074 eng eng PROCEEDINGS OF THE 25th INTERNATIONAL SYMPOSIUM ON ICE Norges forskningsråd: 237906 urn:isbn:978-82-7598-120-0 https://hdl.handle.net/11250/2716074 cristin:1855864 Chapter 2020 ftsintef 2021-08-04T11:59:29Z Understanding ice conditions in fjords is imperative to ensure safe operations and to protect the surrounding environment. Seven fjords in northern Norway were visited in March 2019, six with significant ice cover. In each location, measurements of ocean temperature and salinity, and δ18O for ocean water and river water leading into the fjords were gathered. In addition, where ice was present, measurements of ice bulk salinity and δ18O were obtained along with an extra core to examine ice stratigraphy and pore structure. Results show ice of low bulk salinity, < 1.5 psu, and δ18O, < -7.67 ‰, in five fjords holding ice with maximum ice thickness being upwards of 0.46 m. This result combined with examination of stratigraphy cores reveals ice closely resembling freshwater ice in structure despite lying atop an ocean of average salinity 32 – 33.5 (psu). Ice salinity profiles elude to varying environmental conditions impacting ice formation throughout the winter season. Due to the impact of significant freshwater flux, ice properties differed significantly from sea ice forming in the open ocean, an important characteristic when considered in application to coastal operations. publishedVersion Book Part Northern Norway Sea ice SINTEF Open (Brage) Norway |
institution |
Open Polar |
collection |
SINTEF Open (Brage) |
op_collection_id |
ftsintef |
language |
English |
description |
Understanding ice conditions in fjords is imperative to ensure safe operations and to protect the surrounding environment. Seven fjords in northern Norway were visited in March 2019, six with significant ice cover. In each location, measurements of ocean temperature and salinity, and δ18O for ocean water and river water leading into the fjords were gathered. In addition, where ice was present, measurements of ice bulk salinity and δ18O were obtained along with an extra core to examine ice stratigraphy and pore structure. Results show ice of low bulk salinity, < 1.5 psu, and δ18O, < -7.67 ‰, in five fjords holding ice with maximum ice thickness being upwards of 0.46 m. This result combined with examination of stratigraphy cores reveals ice closely resembling freshwater ice in structure despite lying atop an ocean of average salinity 32 – 33.5 (psu). Ice salinity profiles elude to varying environmental conditions impacting ice formation throughout the winter season. Due to the impact of significant freshwater flux, ice properties differed significantly from sea ice forming in the open ocean, an important characteristic when considered in application to coastal operations. publishedVersion |
format |
Book Part |
author |
O'Sadnick, Megan Petrich, Chris Kleven, Øystein Skardhamar, Jofrid Brekke, Camilla |
spellingShingle |
O'Sadnick, Megan Petrich, Chris Kleven, Øystein Skardhamar, Jofrid Brekke, Camilla Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season |
author_facet |
O'Sadnick, Megan Petrich, Chris Kleven, Øystein Skardhamar, Jofrid Brekke, Camilla |
author_sort |
O'Sadnick, Megan |
title |
Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season |
title_short |
Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season |
title_full |
Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season |
title_fullStr |
Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season |
title_full_unstemmed |
Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season |
title_sort |
ice formation in norwegian fjords – findings from the 2018 - 2019 field season |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2716074 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway Sea ice |
genre_facet |
Northern Norway Sea ice |
op_relation |
PROCEEDINGS OF THE 25th INTERNATIONAL SYMPOSIUM ON ICE Norges forskningsråd: 237906 urn:isbn:978-82-7598-120-0 https://hdl.handle.net/11250/2716074 cristin:1855864 |
_version_ |
1766145548740460544 |