Interannual variations of freshwater content in Hornsund
Salinity measurements have been used to calculate the freshwater content in Hornsund for the years 2001 to 2014. In 2011 there was significantly higher freshwater content in the fjord, compared to the other years, with a total freshwater content of 1.08 km3, when calculated with a reference salinity...
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The University of Bergen
2015
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ftunivbergen:oai:bora.uib.no:1956/10355 2023-05-15T15:39:03+02:00 Interannual variations of freshwater content in Hornsund Dølven, Knut Ola 2015-05-04 62243245 bytes application/pdf https://hdl.handle.net/1956/10355 eng eng The University of Bergen https://hdl.handle.net/1956/10355 Copyright the Author. All rights reserved Svalbard Fjordoseanografi Fysisk oseanografi Salinitet http://data.ub.uio.no/realfagstermer/c005668 http://data.ub.uio.no/realfagstermer/c001570 http://data.ub.uio.no/realfagstermer/c006063 http://data.ub.uio.no/realfagstermer/c030203 756213 Master thesis 2015 ftunivbergen 2023-03-14T17:42:04Z Salinity measurements have been used to calculate the freshwater content in Hornsund for the years 2001 to 2014. In 2011 there was significantly higher freshwater content in the fjord, compared to the other years, with a total freshwater content of 1.08 km3, when calculated with a reference salinity of 34.2. The high freshwater content in 2011 was attributed to the inflow of sea ice and sea ice meltwater of Barents Sea origin, that had been advected into the fjord from the shelf. The lowest amount of freshwater was found in July 2014. No good relashionship between estimations of variations in terrestial runoff and freshwater content in the fjord was found. The distribution of freshwater in Hornsund seems to be governed by wind conditions and the rotational dynamics in the fjord. The fractional contributions of meteoric water, sea ice meltwater, and seawater was calculated based on δ^18O and salinity measurements in September 2013. Significant amounts of meteoric water was found in the surface waters of the bays Burgerbukta and Brepollen. The δ^18O in Brepollen, the innermost bay of Hornsund, showed unusually high values compared to other δ^18O measurements taken in and around Svalbard. This was attributed to the possible existence of a hydrothermal vent or significant amounts of sea ice meltwater in the bay. Master i Meteorologi og oseanografi MAMN-GEOF GEOF399 Master Thesis Barents Sea Hornsund Sea ice Svalbard University of Bergen: Bergen Open Research Archive (BORA-UiB) Barents Sea Brepollen ENVELOPE(16.358,16.358,76.991,76.991) Burgerbukta ENVELOPE(15.957,15.957,77.045,77.045) Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Svalbard |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
Svalbard Fjordoseanografi Fysisk oseanografi Salinitet http://data.ub.uio.no/realfagstermer/c005668 http://data.ub.uio.no/realfagstermer/c001570 http://data.ub.uio.no/realfagstermer/c006063 http://data.ub.uio.no/realfagstermer/c030203 756213 |
spellingShingle |
Svalbard Fjordoseanografi Fysisk oseanografi Salinitet http://data.ub.uio.no/realfagstermer/c005668 http://data.ub.uio.no/realfagstermer/c001570 http://data.ub.uio.no/realfagstermer/c006063 http://data.ub.uio.no/realfagstermer/c030203 756213 Dølven, Knut Ola Interannual variations of freshwater content in Hornsund |
topic_facet |
Svalbard Fjordoseanografi Fysisk oseanografi Salinitet http://data.ub.uio.no/realfagstermer/c005668 http://data.ub.uio.no/realfagstermer/c001570 http://data.ub.uio.no/realfagstermer/c006063 http://data.ub.uio.no/realfagstermer/c030203 756213 |
description |
Salinity measurements have been used to calculate the freshwater content in Hornsund for the years 2001 to 2014. In 2011 there was significantly higher freshwater content in the fjord, compared to the other years, with a total freshwater content of 1.08 km3, when calculated with a reference salinity of 34.2. The high freshwater content in 2011 was attributed to the inflow of sea ice and sea ice meltwater of Barents Sea origin, that had been advected into the fjord from the shelf. The lowest amount of freshwater was found in July 2014. No good relashionship between estimations of variations in terrestial runoff and freshwater content in the fjord was found. The distribution of freshwater in Hornsund seems to be governed by wind conditions and the rotational dynamics in the fjord. The fractional contributions of meteoric water, sea ice meltwater, and seawater was calculated based on δ^18O and salinity measurements in September 2013. Significant amounts of meteoric water was found in the surface waters of the bays Burgerbukta and Brepollen. The δ^18O in Brepollen, the innermost bay of Hornsund, showed unusually high values compared to other δ^18O measurements taken in and around Svalbard. This was attributed to the possible existence of a hydrothermal vent or significant amounts of sea ice meltwater in the bay. Master i Meteorologi og oseanografi MAMN-GEOF GEOF399 |
format |
Master Thesis |
author |
Dølven, Knut Ola |
author_facet |
Dølven, Knut Ola |
author_sort |
Dølven, Knut Ola |
title |
Interannual variations of freshwater content in Hornsund |
title_short |
Interannual variations of freshwater content in Hornsund |
title_full |
Interannual variations of freshwater content in Hornsund |
title_fullStr |
Interannual variations of freshwater content in Hornsund |
title_full_unstemmed |
Interannual variations of freshwater content in Hornsund |
title_sort |
interannual variations of freshwater content in hornsund |
publisher |
The University of Bergen |
publishDate |
2015 |
url |
https://hdl.handle.net/1956/10355 |
long_lat |
ENVELOPE(16.358,16.358,76.991,76.991) ENVELOPE(15.957,15.957,77.045,77.045) ENVELOPE(15.865,15.865,76.979,76.979) |
geographic |
Barents Sea Brepollen Burgerbukta Hornsund Svalbard |
geographic_facet |
Barents Sea Brepollen Burgerbukta Hornsund Svalbard |
genre |
Barents Sea Hornsund Sea ice Svalbard |
genre_facet |
Barents Sea Hornsund Sea ice Svalbard |
op_relation |
https://hdl.handle.net/1956/10355 |
op_rights |
Copyright the Author. All rights reserved |
_version_ |
1766370493573627904 |