Multidisciplinary Observations across an Eddy Dipole in the Interaction Zone between Subtropical and Subantarctic Waters in the Southwest Atlantic
Е. Г. Морозов, D. I. Frey, V. А. Krechik, А. А. Латушкин, Pavel A. Salyuk, A. M. Seliverstova, С. А. Мошаров, А. М. Орлов, С. А. Мурзина, Alexej V. Mishin, Pavel V. Chukmasov, A. A. Kubryakov, M. V. Budyansky, O. A. Zuev, O. S. Mekhova, В. И. Пономарев, A. L. Chul’tsova, A. V. Masevich, Н. И. Торгунова, A. O. Kholmogorov, E. A. Shtraikhert, И. В. Мошарова, Nikolay Yu. Neretin, Glafira Kolbasova, Vitaly L. Syomin, Andrey V. Tretiakov, L. G. Tretiakova, A. D. Chernetsky
Abstract
Seawater properties in two intense rings in the South Atlantic are considered. One ring separated from the Brazil Current and the other from the Malvinas Current. The analysis is based on the CTD casts and SADCP measurements from the onboard velocity profiler. The optical properties, chemical parameters, methane concentration, and biological properties such as primary production, plankton, and fish were also analyzed. Analysis of strong differences between the eddies is supplemented by observations of whales and birds in the region.