Adjustment of an oceanic circumpolar current on different timescales ...
The Antarctic Circumpolar Current (ACC) disproportionately and increasingly affects global anthropogenic climate change. Making observations in this region has been historically difficult so models play a vital role. Even though these models are often times highly idealised circumpolar channel confi...
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| Format: | Thesis |
| Language: | English |
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University of Oxford
2023
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| Online Access: | https://dx.doi.org/10.5287/ora-kokqq2g0o https://ora.ox.ac.uk/objects/uuid:60732556-df6b-432f-ace8-3b5b86d47b6e |
| Summary: | The Antarctic Circumpolar Current (ACC) disproportionately and increasingly affects global anthropogenic climate change. Making observations in this region has been historically difficult so models play a vital role. Even though these models are often times highly idealised circumpolar channel configurations, they are used to understand processes and as test beds for the dynamics of this region. For instance, the equilibrated volume transport of this region is relatively insensitive to changes in the mean surface wind stress forcing: this is known as eddy saturation and is a key feature of ACC dynamics. Another active area of research centres around methods of eddy parameterisation. Eddy parameterisation is used to represent the effects of the mesoscale eddy field in coarser resolution models, such as those used for climate projections. GEOMETRIC is one such parameterisation that succeeds in capturing some unique aspects of circumpolar flow, such as eddy saturation. This thesis investigates the response of a ... |
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