Water properties and bottom water patterns in hadal trench environments
We examine baseline water properties and bottom water patterns in hadal trench environments across the Southern Ocean, Indian Ocean, and western Pacific. Significant differences are identified in the South Fiji Basin and surrounding the Philippine Sea, primarily due to the movement of cold Lower Cir...
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Online Access: | https://doi.org/10.5194/os-20-123-2024 https://os.copernicus.org/articles/20/123/2024/ |
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ftcopernicus:oai:publications.copernicus.org:os114731 2024-09-09T19:08:37+00:00 Water properties and bottom water patterns in hadal trench environments Kolbusz, Jessica Zika, Jan Pattiaratchi, Charitha Jamieson, Alan 2024-02-02 application/pdf https://doi.org/10.5194/os-20-123-2024 https://os.copernicus.org/articles/20/123/2024/ eng eng doi:10.5194/os-20-123-2024 https://os.copernicus.org/articles/20/123/2024/ eISSN: 1812-0792 Text 2024 ftcopernicus https://doi.org/10.5194/os-20-123-2024 2024-08-28T05:24:15Z We examine baseline water properties and bottom water patterns in hadal trench environments across the Southern Ocean, Indian Ocean, and western Pacific. Significant differences are identified in the South Fiji Basin and surrounding the Philippine Sea, primarily due to the movement of cold Lower Circumpolar Deep Water along topographic features, highlighting the importance of a trench's geospatial position. We present the first hydrographic profiles in the Java Trench, warranting further research. Salinity increases with increasing depth for profiles over 10 000 dbar, with potential causes including instrumentation error, internal mixing, and saline pore water expulsion. These hadopelagic variations are crucial for assessing climate change impacts, especially regarding Antarctic Bottom Water. The study underscores the importance of incorporating these adiabatic conditions to gain insights into ecological biodiversity, alongside the indispensable baseline conditions presented, which are crucial for future oceanographic research across multiple disciplines. Text Antarc* Antarctic Southern Ocean Copernicus Publications: E-Journals Antarctic Indian Pacific Southern Ocean Ocean Science 20 1 123 140 |
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Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
We examine baseline water properties and bottom water patterns in hadal trench environments across the Southern Ocean, Indian Ocean, and western Pacific. Significant differences are identified in the South Fiji Basin and surrounding the Philippine Sea, primarily due to the movement of cold Lower Circumpolar Deep Water along topographic features, highlighting the importance of a trench's geospatial position. We present the first hydrographic profiles in the Java Trench, warranting further research. Salinity increases with increasing depth for profiles over 10 000 dbar, with potential causes including instrumentation error, internal mixing, and saline pore water expulsion. These hadopelagic variations are crucial for assessing climate change impacts, especially regarding Antarctic Bottom Water. The study underscores the importance of incorporating these adiabatic conditions to gain insights into ecological biodiversity, alongside the indispensable baseline conditions presented, which are crucial for future oceanographic research across multiple disciplines. |
format |
Text |
author |
Kolbusz, Jessica Zika, Jan Pattiaratchi, Charitha Jamieson, Alan |
spellingShingle |
Kolbusz, Jessica Zika, Jan Pattiaratchi, Charitha Jamieson, Alan Water properties and bottom water patterns in hadal trench environments |
author_facet |
Kolbusz, Jessica Zika, Jan Pattiaratchi, Charitha Jamieson, Alan |
author_sort |
Kolbusz, Jessica |
title |
Water properties and bottom water patterns in hadal trench environments |
title_short |
Water properties and bottom water patterns in hadal trench environments |
title_full |
Water properties and bottom water patterns in hadal trench environments |
title_fullStr |
Water properties and bottom water patterns in hadal trench environments |
title_full_unstemmed |
Water properties and bottom water patterns in hadal trench environments |
title_sort |
water properties and bottom water patterns in hadal trench environments |
publishDate |
2024 |
url |
https://doi.org/10.5194/os-20-123-2024 https://os.copernicus.org/articles/20/123/2024/ |
geographic |
Antarctic Indian Pacific Southern Ocean |
geographic_facet |
Antarctic Indian Pacific Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
eISSN: 1812-0792 |
op_relation |
doi:10.5194/os-20-123-2024 https://os.copernicus.org/articles/20/123/2024/ |
op_doi |
https://doi.org/10.5194/os-20-123-2024 |
container_title |
Ocean Science |
container_volume |
20 |
container_issue |
1 |
container_start_page |
123 |
op_container_end_page |
140 |
_version_ |
1809822861148291072 |