Interannual variability in hydrography and water mass distribution in Hornsund, an Arctic fjord in Svalbard
Progressing warming in the Arctic and increased extreme weather events can significantly influence the hydrography of Svalbard fjords, leading to changes towards more Atlantic-type waters in the fjords. In this paper, we look into the hydrographic conditions in Hornsund, the southernmost fjord on th...
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Norwegian Polar Institute
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ftjpolarres:oai:journals.openacademia.net:article/2666 2023-05-15T14:58:44+02:00 Interannual variability in hydrography and water mass distribution in Hornsund, an Arctic fjord in Svalbard Promińska, Agnieszka Falck, Eva Walczowski, Waldemar 2018-09-06 application/pdf application/xml https://polarresearch.net/index.php/polar/article/view/2666 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2666/6083 https://polarresearch.net/index.php/polar/article/view/2666/6084 https://polarresearch.net/index.php/polar/article/view/2666 Polar Research; Vol 37 (2018) 1751-8369 Temperature salinity Atlantic Water Sørkapp Current Spitsbergen environmental factors info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2018 ftjpolarres 2021-11-11T19:13:09Z Progressing warming in the Arctic and increased extreme weather events can significantly influence the hydrography of Svalbard fjords, leading to changes towards more Atlantic-type waters in the fjords. In this paper, we look into the hydrographic conditions in Hornsund, the southernmost fjord on the west coast of Svalbard, by analysing high-resolution CTD measurements collected in July during cruises with the RV Oceania between 2001 and 2015. These observations revealed high interannual variability in temperature, salinity and distribution of water masses, mainly due to differences in timing of the transition between winter and summer conditions but also as a result of changing environmental factors such as air temperature and sea-ice cover. Hornsund shows weak Atlantic Water occupation, probably due to strong influence of the Sørkapp Current along the southern coast of Spitsbergen. The main basin of the fjord was much more influenced by waters entering the fjord from outside than the inner basin, Brepollen, which was mainly characterized by the presence of locally formed Winter Cooled Water (WCW). The amount and properties of WCW in Brepollen revealed high variability after 2006, and no WCW in July 2012. The results of our study show that Hornsund is highly variable and susceptible to recently observed atmospheric and oceanic extreme events in the Svalbard region. Article in Journal/Newspaper Arctic Hornsund Polar Research Sea ice Svalbard Spitsbergen Polar Research (E-Journal) Arctic Svalbard Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Brepollen ENVELOPE(16.358,16.358,76.991,76.991) |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
topic |
Temperature salinity Atlantic Water Sørkapp Current Spitsbergen environmental factors |
spellingShingle |
Temperature salinity Atlantic Water Sørkapp Current Spitsbergen environmental factors Promińska, Agnieszka Falck, Eva Walczowski, Waldemar Interannual variability in hydrography and water mass distribution in Hornsund, an Arctic fjord in Svalbard |
topic_facet |
Temperature salinity Atlantic Water Sørkapp Current Spitsbergen environmental factors |
description |
Progressing warming in the Arctic and increased extreme weather events can significantly influence the hydrography of Svalbard fjords, leading to changes towards more Atlantic-type waters in the fjords. In this paper, we look into the hydrographic conditions in Hornsund, the southernmost fjord on the west coast of Svalbard, by analysing high-resolution CTD measurements collected in July during cruises with the RV Oceania between 2001 and 2015. These observations revealed high interannual variability in temperature, salinity and distribution of water masses, mainly due to differences in timing of the transition between winter and summer conditions but also as a result of changing environmental factors such as air temperature and sea-ice cover. Hornsund shows weak Atlantic Water occupation, probably due to strong influence of the Sørkapp Current along the southern coast of Spitsbergen. The main basin of the fjord was much more influenced by waters entering the fjord from outside than the inner basin, Brepollen, which was mainly characterized by the presence of locally formed Winter Cooled Water (WCW). The amount and properties of WCW in Brepollen revealed high variability after 2006, and no WCW in July 2012. The results of our study show that Hornsund is highly variable and susceptible to recently observed atmospheric and oceanic extreme events in the Svalbard region. |
format |
Article in Journal/Newspaper |
author |
Promińska, Agnieszka Falck, Eva Walczowski, Waldemar |
author_facet |
Promińska, Agnieszka Falck, Eva Walczowski, Waldemar |
author_sort |
Promińska, Agnieszka |
title |
Interannual variability in hydrography and water mass distribution in Hornsund, an Arctic fjord in Svalbard |
title_short |
Interannual variability in hydrography and water mass distribution in Hornsund, an Arctic fjord in Svalbard |
title_full |
Interannual variability in hydrography and water mass distribution in Hornsund, an Arctic fjord in Svalbard |
title_fullStr |
Interannual variability in hydrography and water mass distribution in Hornsund, an Arctic fjord in Svalbard |
title_full_unstemmed |
Interannual variability in hydrography and water mass distribution in Hornsund, an Arctic fjord in Svalbard |
title_sort |
interannual variability in hydrography and water mass distribution in hornsund, an arctic fjord in svalbard |
publisher |
Norwegian Polar Institute |
publishDate |
2018 |
url |
https://polarresearch.net/index.php/polar/article/view/2666 |
long_lat |
ENVELOPE(15.865,15.865,76.979,76.979) ENVELOPE(16.358,16.358,76.991,76.991) |
geographic |
Arctic Svalbard Hornsund Brepollen |
geographic_facet |
Arctic Svalbard Hornsund Brepollen |
genre |
Arctic Hornsund Polar Research Sea ice Svalbard Spitsbergen |
genre_facet |
Arctic Hornsund Polar Research Sea ice Svalbard Spitsbergen |
op_source |
Polar Research; Vol 37 (2018) 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2666/6083 https://polarresearch.net/index.php/polar/article/view/2666/6084 https://polarresearch.net/index.php/polar/article/view/2666 |
_version_ |
1766330867157827584 |