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Decadal-Scale Temperature Trends in the Southern Hemisphere Ocean
Open accessAbstract
Long-term trends in the heat content of the Southern Hemisphere ocean are evaluated by comparing temperature profiles collected during the 1990s with profiles collected starting in the 1930s. Data are drawn both from ship-based hydrographic surveys and from autonomous floats. Results show that the upper 1000 m of the Southern Hemisphere ocean has warmed substantially during this time period at all depths. Warming is concentrated within the Antarctic Circumpolar Current (ACC). On a global scale, this warming trend implies that the ocean has gained heat from the atmosphere over the last 50 to 70 years. Although the data do not preclude the possibility that the Southern Ocean has warmed as a result of increased heat fluxes, either into the ocean or within the ocean, in general the strong trend in the Southern Ocean appears regionally consistent with a poleward migration of the ACC, possibly driven by long-term poleward shifts in the winds of the region, as represented by the southern annular mode.
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Citations
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Armour, K. C., Marshall, J., Scott, J. R., Donohoe, A., & Newsom, E. R. (2016) · Nature Geoscience · doi:10.1038/ngeo2731 · Cited by 580
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Assessing recent trends in high-latitude Southern Hemisphere surface climate
Jones, J. M., Gille, S. T., Goosse, H., Abram, N. J., Canziani, P. O., Charman, D. J., Clem, K. R., Crosta, X., de Lavergne, C., Eisenman, I., et al. (2016) · Nature Climate Change · doi:10.1038/nclimate3103 · Cited by 359
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Metadata
- Authors
- Gille, S. T.
- Venue
- Journal of Climate
- Publisher
- American Meteorological Society
- Published
- 2008-09-15
- Volume
- 21
- Issue
- 18
- Pages
- 4749-4765
- ISSN
- 0894-8755 (ISSN-L)
- 1520-0442
- OpenAlex
- W2128565517
- Cited by
- 399
- References
- 0
- FWCI
- 19.24
- Type
- journal article
- Language
- en
- Open access
- bronze
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
