Characteristics and trends of the Campbell Plateau Meander in the Southern Ocean ...
The Southern Ocean is a crucial component of the global climate system and has absorbed a large proportion of anthropogenic heat and carbon emitted since the pre-industrial era. The Antarctic Circumpolar Current is composed of fronts, jets, and meanders. Meanders are "meandering" currents,...
| Main Author: | |
|---|---|
| Format: | Text |
| Language: | unknown |
| Published: |
University of Tasmania
2022
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.25959/100.00047676 https://eprints.utas.edu.au/id/eprint/47676 |
| Summary: | The Southern Ocean is a crucial component of the global climate system and has absorbed a large proportion of anthropogenic heat and carbon emitted since the pre-industrial era. The Antarctic Circumpolar Current is composed of fronts, jets, and meanders. Meanders are "meandering" currents, often overlapping the location of fronts and close to topographic features, and are sites of locally enhanced vertical transport and mixing. Although meanders are key sites of interactions between the surface and deeper waters, their response to climate change is largely unexplored. In this study, we investigate the Campbell Plateau meander south of New Zealand using satellite altimetry data over the 1993 - 2020 period. We apply a "local gradient maxima" method to absolute dynamical topography data from satellite altimetry to identify the meander's location. The meander's width and geostrophic current speed are also derived. The linear trends of the meander's meridional displacement, width, as well as speed are estimated ... |
|---|