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Frew, Russell D., Heywood, Karen J. 
ORCID: https://orcid.org/0000-0001-9859-0026 and Dennis, Paul F. ORCID: https://orcid.org/0000-0002-0307-4406
(1995)
Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica.
Marine Chemistry, 49 (2-3).
pp. 141-153.
ISSN 0304-4203
Abstract
Data from a hydrographic survey located in the Princess Elizabeth Trough, near the Antarctic continent (63-65 ° S, 85 ° E) are presented and discussed. This region is covered by sea-ice for most of the year with the ice-edge retreating to the southern edge of the Trough during summer. Water samples were collected during the Austral summer, February 1993, to determine the ratio of the oxygen-18 to oxygen-16 isotope, δ18O. Four water bodies are characterised by their temperature, salinity and δ18O properties, Surface Water (0.0-1.2 ° C, 33.1-34.0, -0.39‰), Winter Water (-1.7 ° C, 34.4, -0.39‰), Warm Deep Water (2.0 ° C, 34.69, 0.02‰) and Bottom Water (-0.43 ° C, 34.669, -0.25‰). The Bottom Water is warmer, saltier and heavier isotopically than Weddell Sea Bottom Water (-0.9 ° C, 34.65, -0.29‰); and has T-S properties close to that of classical Antarctic Bottom Water (-0.4 ° C, 34.66). This Bottom Water is isotopically distinct from the Weddell Sea derived Bottom Water that ventilates the Indian ocean through the Kerguelen-Crozet gap. A mechanism for local formation of the Bottom Water involving freezing of Surface Water and entrainment of Warm Deep Water is described.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | oceanography,chemistry(all),environmental chemistry,water science and technology ,/dk/atira/pure/subjectarea/asjc/1900/1910 |
| Faculty \ School: | Faculty of Science > School of Environmental Sciences University of East Anglia Research Groups/Centres > Theme - ClimateUEA |
| UEA Research Groups: | Faculty of Science > Research Groups > Centre for Ocean and Atmospheric Sciences Faculty of Science > Research Groups > Geosciences |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 20 May 2020 00:14 |
| Last Modified: | 20 Mar 2023 11:33 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/75242 |
| DOI: | 10.1016/0304-4203(95)00003-A |
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