Southern Ocean circulation from hydrographic data : a finite difference inverse model ...
A finite difference inverse model is developed to investigate the circulation of the Southern Ocean. The circulation of the Southern Ocean is largely unknown, and yet the heat and freshwater transported by the circulation plays an important role in maintaining the global climate [Rintoul 1988]. Prev...
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| Format: | Thesis |
| Language: | unknown |
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University Of Tasmania
2023
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| Online Access: | https://dx.doi.org/10.25959/23233598.v1 https://figshare.utas.edu.au/articles/thesis/Southern_Ocean_circulation_from_hydrographic_data_a_finite_difference_inverse_model/23233598/1 |
| Summary: | A finite difference inverse model is developed to investigate the circulation of the Southern Ocean. The circulation of the Southern Ocean is largely unknown, and yet the heat and freshwater transported by the circulation plays an important role in maintaining the global climate [Rintoul 1988]. Previous inverse studies of the Southern Ocean, and inverse studies in general, suffer from relatively poor average spatial resolution [Martel and Wunsch 1993]. This study presents an inverse model of the Southern Ocean (SOINV) that begins to improve the spatial resolution of inverse investigations. In a move away from the quasi-synoptic approach of previous inverse models, the SOINV utilises all available hydrographic data measured between 190,I and 1990 to estimate a time averaged thermal wind circulation that is added to a mean Ekman circulation on a 1° x 1° grid of the Southern Ocean. By applying conservation equations on each 1° x 1° grid, a mass conserving, weakly vorticity conserving circulation ... |
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