The sound speed anomaly of Baltic seawater
The effect of the anomalous chemical composition of Baltic seawater on the speed of sound relative to seawater with quasi-standard composition was quantified at atmospheric pressure and temperatures of 1 to 46 °C. Three modern oceanographic time-of-flight sensors were applied in a laboratory setup f...
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Copernicus Publications
2016
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00014017 2023-05-15T17:32:18+02:00 The sound speed anomaly of Baltic seawater von Rohden, C. Weinreben, S. Fehres, F. 2016-02 electronic https://doi.org/10.5194/os-12-275-2016 https://noa.gwlb.de/receive/cop_mods_00014017 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013973/os-12-275-2016.pdf https://os.copernicus.org/articles/12/275/2016/os-12-275-2016.pdf eng eng Copernicus Publications Ocean Science -- http://www.bibliothek.uni-regensburg.de/ezeit/?2183769 -- http://www.copernicus.org/EGU/os/os.html -- 1812-0792 https://doi.org/10.5194/os-12-275-2016 https://noa.gwlb.de/receive/cop_mods_00014017 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013973/os-12-275-2016.pdf https://os.copernicus.org/articles/12/275/2016/os-12-275-2016.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2016 ftnonlinearchiv https://doi.org/10.5194/os-12-275-2016 2022-02-08T22:55:19Z The effect of the anomalous chemical composition of Baltic seawater on the speed of sound relative to seawater with quasi-standard composition was quantified at atmospheric pressure and temperatures of 1 to 46 °C. Three modern oceanographic time-of-flight sensors were applied in a laboratory setup for measuring the speed-of-sound difference δw in a pure water diluted sample of North Atlantic seawater and a sample of Baltic seawater of the same conductivity, i.e., the same practical salinity (SP = 7.766). The average δw amounts to 0.069 ± 0.014 m s−1, which is significantly larger than the resolution and reproducibility of the sensors and independent of temperature. This magnitude for the anomaly effect was verified with offshore measurements conducted at different sites in the Baltic Sea using one of the sensors. The results from both measurements show values up to 1 order of magnitude smaller than existing predictions based on chemical models. Article in Journal/Newspaper North Atlantic Niedersächsisches Online-Archiv NOA Ocean Science 12 1 275 283 |
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Niedersächsisches Online-Archiv NOA |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung von Rohden, C. Weinreben, S. Fehres, F. The sound speed anomaly of Baltic seawater |
topic_facet |
article Verlagsveröffentlichung |
description |
The effect of the anomalous chemical composition of Baltic seawater on the speed of sound relative to seawater with quasi-standard composition was quantified at atmospheric pressure and temperatures of 1 to 46 °C. Three modern oceanographic time-of-flight sensors were applied in a laboratory setup for measuring the speed-of-sound difference δw in a pure water diluted sample of North Atlantic seawater and a sample of Baltic seawater of the same conductivity, i.e., the same practical salinity (SP = 7.766). The average δw amounts to 0.069 ± 0.014 m s−1, which is significantly larger than the resolution and reproducibility of the sensors and independent of temperature. This magnitude for the anomaly effect was verified with offshore measurements conducted at different sites in the Baltic Sea using one of the sensors. The results from both measurements show values up to 1 order of magnitude smaller than existing predictions based on chemical models. |
format |
Article in Journal/Newspaper |
author |
von Rohden, C. Weinreben, S. Fehres, F. |
author_facet |
von Rohden, C. Weinreben, S. Fehres, F. |
author_sort |
von Rohden, C. |
title |
The sound speed anomaly of Baltic seawater |
title_short |
The sound speed anomaly of Baltic seawater |
title_full |
The sound speed anomaly of Baltic seawater |
title_fullStr |
The sound speed anomaly of Baltic seawater |
title_full_unstemmed |
The sound speed anomaly of Baltic seawater |
title_sort |
sound speed anomaly of baltic seawater |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/os-12-275-2016 https://noa.gwlb.de/receive/cop_mods_00014017 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013973/os-12-275-2016.pdf https://os.copernicus.org/articles/12/275/2016/os-12-275-2016.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Ocean Science -- http://www.bibliothek.uni-regensburg.de/ezeit/?2183769 -- http://www.copernicus.org/EGU/os/os.html -- 1812-0792 https://doi.org/10.5194/os-12-275-2016 https://noa.gwlb.de/receive/cop_mods_00014017 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013973/os-12-275-2016.pdf https://os.copernicus.org/articles/12/275/2016/os-12-275-2016.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/os-12-275-2016 |
container_title |
Ocean Science |
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12 |
container_issue |
1 |
container_start_page |
275 |
op_container_end_page |
283 |
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1766130345150775296 |