The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century
Accepted manuscript version. Published version available at https://doi.org/10.1111/bor.12249 . Accepted manuscript version, licensed CC BY-NC-ND 4.0. The influence of the Coriolis force on the Hornsund fjord environment (southern Spitsbergen) was investigated in the marine sedimentary record from t...
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ftunivtroemsoe:oai:munin.uit.no:10037/13260 2023-05-15T15:03:45+02:00 The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century Pawłowska, Joanna Zajączkowski, Marek Szczuciński, Witold Zaborska, Agata Kucharska, Małgorzata Jernas, Patrycja Ewa Forwick, Matthias 2017-04-22 https://hdl.handle.net/10037/13260 https://doi.org/10.1111/bor.12249 eng eng Elsevier Boreas Pawłowska, J., Zajączkowski, M., Szczuciński, W., Zaborska, A., Kucharska, M., Jernas, P.E. & Forwick, M. (2017). The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century. Boreas, 46(4), 737-749. https://doi.org/10.1111/bor.12249 FRIDAID 1475539 doi:10.1111/bor.12249 0300-9483 1502-3885 https://hdl.handle.net/10037/13260 openAccess VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 Journal article Tidsskriftartikkel Peer reviewed 2017 ftunivtroemsoe https://doi.org/10.1111/bor.12249 2021-06-25T17:55:48Z Accepted manuscript version. Published version available at https://doi.org/10.1111/bor.12249 . Accepted manuscript version, licensed CC BY-NC-ND 4.0. The influence of the Coriolis force on the Hornsund fjord environment (southern Spitsbergen) was investigated in the marine sedimentary record from the last century. Due to the influence of the rotational effects, Atlantic and Arctic Water enter the fjord along the southern shore and exit along the northern shore. Thus, the sedimentary record from the southern part reflects the large‐scale hydrological processes associated with these oceanic water‐masses, whereas the northern portion is affected by a combination of regional and local waters (including glacial meltwater). To assess the significance of the Coriolis force driven circulation in this environment over the last century, two short sediment cores were sampled from the southern and northern parts of the fjord. The cores were dated with 210Pb and 137Cs and analysed for grain size, ice‐rafted debris, benthic foraminifera and stable isotopes (δ18O and δ13C). The influence of the Coriolis force was most apparent in the benthic foraminiferal record. The foraminiferal assemblage of the southern part of the fjord is characterized by markedly higher species diversity and a high percentage of Atlantic water species compared to the northern part. This pattern probably resulted from the lower level of environmental disturbance and the constant introduction of propagules and juveniles from offshore pools. The northern part of the fjord is characterized by more unstable environmental conditions due to the variable delivery of turbid meltwater, which is reflected in the low‐diversity foraminiferal assemblage dominated by glaciomarine taxa and bottom current indicators. The influence of the Coriolis force on the sedimentary regime is less clear. As the geometry of many of the European Arctic fjords allows the rotational dynamics of water‐masses, our results may serve as a reference for further studies on the influence of the Coriolis force‐driven rotational dynamics on modern and past environments. Article in Journal/Newspaper Arctic Foraminifera* Hornsund Spitsbergen University of Tromsø: Munin Open Research Archive Arctic Bor ENVELOPE(126.850,126.850,61.750,61.750) Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Boreas 46 4 737 749 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 Pawłowska, Joanna Zajączkowski, Marek Szczuciński, Witold Zaborska, Agata Kucharska, Małgorzata Jernas, Patrycja Ewa Forwick, Matthias The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 |
description |
Accepted manuscript version. Published version available at https://doi.org/10.1111/bor.12249 . Accepted manuscript version, licensed CC BY-NC-ND 4.0. The influence of the Coriolis force on the Hornsund fjord environment (southern Spitsbergen) was investigated in the marine sedimentary record from the last century. Due to the influence of the rotational effects, Atlantic and Arctic Water enter the fjord along the southern shore and exit along the northern shore. Thus, the sedimentary record from the southern part reflects the large‐scale hydrological processes associated with these oceanic water‐masses, whereas the northern portion is affected by a combination of regional and local waters (including glacial meltwater). To assess the significance of the Coriolis force driven circulation in this environment over the last century, two short sediment cores were sampled from the southern and northern parts of the fjord. The cores were dated with 210Pb and 137Cs and analysed for grain size, ice‐rafted debris, benthic foraminifera and stable isotopes (δ18O and δ13C). The influence of the Coriolis force was most apparent in the benthic foraminiferal record. The foraminiferal assemblage of the southern part of the fjord is characterized by markedly higher species diversity and a high percentage of Atlantic water species compared to the northern part. This pattern probably resulted from the lower level of environmental disturbance and the constant introduction of propagules and juveniles from offshore pools. The northern part of the fjord is characterized by more unstable environmental conditions due to the variable delivery of turbid meltwater, which is reflected in the low‐diversity foraminiferal assemblage dominated by glaciomarine taxa and bottom current indicators. The influence of the Coriolis force on the sedimentary regime is less clear. As the geometry of many of the European Arctic fjords allows the rotational dynamics of water‐masses, our results may serve as a reference for further studies on the influence of the Coriolis force‐driven rotational dynamics on modern and past environments. |
format |
Article in Journal/Newspaper |
author |
Pawłowska, Joanna Zajączkowski, Marek Szczuciński, Witold Zaborska, Agata Kucharska, Małgorzata Jernas, Patrycja Ewa Forwick, Matthias |
author_facet |
Pawłowska, Joanna Zajączkowski, Marek Szczuciński, Witold Zaborska, Agata Kucharska, Małgorzata Jernas, Patrycja Ewa Forwick, Matthias |
author_sort |
Pawłowska, Joanna |
title |
The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century |
title_short |
The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century |
title_full |
The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century |
title_fullStr |
The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century |
title_full_unstemmed |
The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century |
title_sort |
influence of coriolis force driven water circulation on the palaeoenvironment of hornsund (s spitsbergen) over the last century |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/13260 https://doi.org/10.1111/bor.12249 |
long_lat |
ENVELOPE(126.850,126.850,61.750,61.750) ENVELOPE(15.865,15.865,76.979,76.979) |
geographic |
Arctic Bor Hornsund |
geographic_facet |
Arctic Bor Hornsund |
genre |
Arctic Foraminifera* Hornsund Spitsbergen |
genre_facet |
Arctic Foraminifera* Hornsund Spitsbergen |
op_relation |
Boreas Pawłowska, J., Zajączkowski, M., Szczuciński, W., Zaborska, A., Kucharska, M., Jernas, P.E. & Forwick, M. (2017). The influence of Coriolis force driven water circulation on the palaeoenvironment of Hornsund (S Spitsbergen) over the last century. Boreas, 46(4), 737-749. https://doi.org/10.1111/bor.12249 FRIDAID 1475539 doi:10.1111/bor.12249 0300-9483 1502-3885 https://hdl.handle.net/10037/13260 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1111/bor.12249 |
container_title |
Boreas |
container_volume |
46 |
container_issue |
4 |
container_start_page |
737 |
op_container_end_page |
749 |
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1766335603757023232 |