Geochemically tracing the intermediate and surface waters in the Tasman Sea, southwest Pacific
The relatively understudied intermediate waters of the world have been implicated as an important part of the global ocean circulation. This thesis discusses the intermediate waters of the Pacific over space and time. Initially, by using geochemical tracers to look at the present distribution, sourc...
Main Author: | |
---|---|
Format: | Thesis |
Language: | English |
Published: |
The Australian National University
2005
|
Subjects: | |
Online Access: | https://dx.doi.org/10.25911/5d7a2a8ad1bdc https://openresearch-repository.anu.edu.au/handle/1885/46224 |
id |
ftdatacite:10.25911/5d7a2a8ad1bdc |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.25911/5d7a2a8ad1bdc 2023-05-15T14:00:47+02:00 Geochemically tracing the intermediate and surface waters in the Tasman Sea, southwest Pacific Bostock, Helen C 2005 https://dx.doi.org/10.25911/5d7a2a8ad1bdc https://openresearch-repository.anu.edu.au/handle/1885/46224 en eng The Australian National University South Pacific • Tasman Sea • geochemistry • Antarctic Intermediate Water AAIW • ocean circulation • palaeoceanography • sedimentology • southern Great Barrier Reef • Glacial • East Australian Current EAC Other CreativeWork article Thesis (PhD) 2005 ftdatacite https://doi.org/10.25911/5d7a2a8ad1bdc 2021-11-05T12:55:41Z The relatively understudied intermediate waters of the world have been implicated as an important part of the global ocean circulation. This thesis discusses the intermediate waters of the Pacific over space and time. Initially, by using geochemical tracers to look at the present distribution, sources and mixing of the water masses. Secondly, by using oxygen and carbon isotopes from sediment cores to study changes in Antarctic Intermediate Waters (AAIW) over the late Quaternary in the north Tasman Sea. ¶ The geochemical tracers highlight the presence of three separate intermediate water masses in the Pacific: North Pacific Intermediate Water (NPIW), AAIW and Equatorial Intermediate Water (EqIW). The EqIW has previously been considered an extension of intermediate water masses to the north or south. The unique geochemical characteristics of EqIW indicate, however, that it cannot be formed by direct mixing of the NPIW and AAIW. Geochemical tracers suggest instead that EqIW must also include mixing with nutrient rich, oxygen deficient, old Pacific Deep Water (PDW). ... Thesis Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Pacific |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
South Pacific • Tasman Sea • geochemistry • Antarctic Intermediate Water AAIW • ocean circulation • palaeoceanography • sedimentology • southern Great Barrier Reef • Glacial • East Australian Current EAC |
spellingShingle |
South Pacific • Tasman Sea • geochemistry • Antarctic Intermediate Water AAIW • ocean circulation • palaeoceanography • sedimentology • southern Great Barrier Reef • Glacial • East Australian Current EAC Bostock, Helen C Geochemically tracing the intermediate and surface waters in the Tasman Sea, southwest Pacific |
topic_facet |
South Pacific • Tasman Sea • geochemistry • Antarctic Intermediate Water AAIW • ocean circulation • palaeoceanography • sedimentology • southern Great Barrier Reef • Glacial • East Australian Current EAC |
description |
The relatively understudied intermediate waters of the world have been implicated as an important part of the global ocean circulation. This thesis discusses the intermediate waters of the Pacific over space and time. Initially, by using geochemical tracers to look at the present distribution, sources and mixing of the water masses. Secondly, by using oxygen and carbon isotopes from sediment cores to study changes in Antarctic Intermediate Waters (AAIW) over the late Quaternary in the north Tasman Sea. ¶ The geochemical tracers highlight the presence of three separate intermediate water masses in the Pacific: North Pacific Intermediate Water (NPIW), AAIW and Equatorial Intermediate Water (EqIW). The EqIW has previously been considered an extension of intermediate water masses to the north or south. The unique geochemical characteristics of EqIW indicate, however, that it cannot be formed by direct mixing of the NPIW and AAIW. Geochemical tracers suggest instead that EqIW must also include mixing with nutrient rich, oxygen deficient, old Pacific Deep Water (PDW). ... |
format |
Thesis |
author |
Bostock, Helen C |
author_facet |
Bostock, Helen C |
author_sort |
Bostock, Helen C |
title |
Geochemically tracing the intermediate and surface waters in the Tasman Sea, southwest Pacific |
title_short |
Geochemically tracing the intermediate and surface waters in the Tasman Sea, southwest Pacific |
title_full |
Geochemically tracing the intermediate and surface waters in the Tasman Sea, southwest Pacific |
title_fullStr |
Geochemically tracing the intermediate and surface waters in the Tasman Sea, southwest Pacific |
title_full_unstemmed |
Geochemically tracing the intermediate and surface waters in the Tasman Sea, southwest Pacific |
title_sort |
geochemically tracing the intermediate and surface waters in the tasman sea, southwest pacific |
publisher |
The Australian National University |
publishDate |
2005 |
url |
https://dx.doi.org/10.25911/5d7a2a8ad1bdc https://openresearch-repository.anu.edu.au/handle/1885/46224 |
geographic |
Antarctic Pacific |
geographic_facet |
Antarctic Pacific |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_doi |
https://doi.org/10.25911/5d7a2a8ad1bdc |
_version_ |
1766270116827234304 |