Snow effects on brash ice and level ice growth
Brash ice formation and accumulation occur at a faster rate in ship channels, harbours and turning areas compared to the surrounding level ice. Accurate prediction of brash ice thickness plays an important role in addressing operational challenges and optimisation of ice management strategies. This...
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ftdoajarticles:oai:doaj.org/article:277b85f93dd94725b60284e3e495747f 2024-09-15T18:15:41+00:00 Snow effects on brash ice and level ice growth Vasiola Zhaka Robert Bridges Kaj Riska Jonny Nilimaa Andrzej Cwirzen https://doi.org/10.1017/jog.2024.5 https://doaj.org/article/277b85f93dd94725b60284e3e495747f EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143024000054/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2024.5 0022-1430 1727-5652 https://doaj.org/article/277b85f93dd94725b60284e3e495747f Journal of Glaciology, Pp 1-15 ice/atmosphere interactions sea ice sea-ice growth and decay sea-ice modelling snow physics Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article ftdoajarticles https://doi.org/10.1017/jog.2024.5 2024-08-05T17:50:00Z Brash ice formation and accumulation occur at a faster rate in ship channels, harbours and turning areas compared to the surrounding level ice. Accurate prediction of brash ice thickness plays an important role in addressing operational challenges and optimisation of ice management strategies. This study enhances existing brash ice growth models by considering the effects of snow and accounting for brash ice expulsion towards the sides of ship channels at each passage. To validate the influence of these critical factors on brash ice thickness, three distinct ship channels located in the Bay of Bothnia, Luleå, Sweden, were investigated. For two test channels formed for study purposes, the slower growth rate of brash ice caused by snow insulation was more prominent than the brash ice growth acceleration caused by the snow–slush–snow ice transformation. In the third channel characterised by frequent navigation, the transformation of slush into snow ice played a more substantial role than snow insulation. In both test channels, the brash ice growth model performed optimally, assuming a 10% expulsion of brash ice sideways at each vessel passage. In the third, wider and more frequently navigated channel, a 1.2% brash ice expelling coefficient predicted well the measured brash ice thicknesses. Article in Journal/Newspaper Journal of Glaciology Luleå Luleå Luleå Sea ice Directory of Open Access Journals: DOAJ Articles Journal of Glaciology 1 39 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ice/atmosphere interactions sea ice sea-ice growth and decay sea-ice modelling snow physics Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
ice/atmosphere interactions sea ice sea-ice growth and decay sea-ice modelling snow physics Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Vasiola Zhaka Robert Bridges Kaj Riska Jonny Nilimaa Andrzej Cwirzen Snow effects on brash ice and level ice growth |
topic_facet |
ice/atmosphere interactions sea ice sea-ice growth and decay sea-ice modelling snow physics Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Brash ice formation and accumulation occur at a faster rate in ship channels, harbours and turning areas compared to the surrounding level ice. Accurate prediction of brash ice thickness plays an important role in addressing operational challenges and optimisation of ice management strategies. This study enhances existing brash ice growth models by considering the effects of snow and accounting for brash ice expulsion towards the sides of ship channels at each passage. To validate the influence of these critical factors on brash ice thickness, three distinct ship channels located in the Bay of Bothnia, Luleå, Sweden, were investigated. For two test channels formed for study purposes, the slower growth rate of brash ice caused by snow insulation was more prominent than the brash ice growth acceleration caused by the snow–slush–snow ice transformation. In the third channel characterised by frequent navigation, the transformation of slush into snow ice played a more substantial role than snow insulation. In both test channels, the brash ice growth model performed optimally, assuming a 10% expulsion of brash ice sideways at each vessel passage. In the third, wider and more frequently navigated channel, a 1.2% brash ice expelling coefficient predicted well the measured brash ice thicknesses. |
format |
Article in Journal/Newspaper |
author |
Vasiola Zhaka Robert Bridges Kaj Riska Jonny Nilimaa Andrzej Cwirzen |
author_facet |
Vasiola Zhaka Robert Bridges Kaj Riska Jonny Nilimaa Andrzej Cwirzen |
author_sort |
Vasiola Zhaka |
title |
Snow effects on brash ice and level ice growth |
title_short |
Snow effects on brash ice and level ice growth |
title_full |
Snow effects on brash ice and level ice growth |
title_fullStr |
Snow effects on brash ice and level ice growth |
title_full_unstemmed |
Snow effects on brash ice and level ice growth |
title_sort |
snow effects on brash ice and level ice growth |
publisher |
Cambridge University Press |
url |
https://doi.org/10.1017/jog.2024.5 https://doaj.org/article/277b85f93dd94725b60284e3e495747f |
genre |
Journal of Glaciology Luleå Luleå Luleå Sea ice |
genre_facet |
Journal of Glaciology Luleå Luleå Luleå Sea ice |
op_source |
Journal of Glaciology, Pp 1-15 |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143024000054/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2024.5 0022-1430 1727-5652 https://doaj.org/article/277b85f93dd94725b60284e3e495747f |
op_doi |
https://doi.org/10.1017/jog.2024.5 |
container_title |
Journal of Glaciology |
container_start_page |
1 |
op_container_end_page |
39 |
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1810453623283384320 |