Towards High Resolution Altimetry: evaluation of products in the Southwestern Atlantic
Our proposal consists in a follow-up study of the Malvinas CNES-funded project (2012-2016, Southwestern Atlantic currents from in-situ and satellite altimetry, www.cima.fcen.uba.ar/malvinascurrent). Thanks to that project we were able to deploy sixteen moorings along two transects that covered the Patagonian shelf and shelf-break. Data obtained from the first transect provided, for the first time, year-long time series of currents over the Patagonian continental shelf which allowed the evaluation of altimetry data. The full exploitation of the dataset, including data from the second transect, will permit to address specific questions:
The in-situ data from CASSIS-Malvinas offer an exceptional opportunity to evaluate at the same time new and traditional altimetry products, which is the first main objective of this proposal. The second main objective is motivated by recent studies that suggest that the MC can act as a barrier or as a blender between open ocean and shelf waters. The two roles have deep consequences on the primary productivity on both the continental shelf and shelf-break. The combination of altimetry, in-situ and model output data is proposed to investigate this problem.