12:00 PM - 12:15 PM
[MIS10-11] Standing meanders of the Antarctic Circumpolar Current as observed by Argo floats
Keywords:Antarctic Circumpolar Current, Interdecadal variability, Eddy transport, Curvature
I used trajectory and hydrography data from Argo floats to study this behaviour in observed data. Seven major meanders were identified along the ACC. Eddies around the meanders have an effect to increase the radius of curvature, or stretch the streamlines. This effect was found generally on the eastern flanks of meridional ridges, where poleward eddy transport was found. The poleward eddy transport plays important roles in the meridional overturning cirulation and momentum budget. Another important role in shaping the streamlines was highlighted.