Mixing and transport across the Atlantic Meridional Overturning Circulation: a 3D geometrical perspective

Vertical motions across the ocean are central to processes, like CO₂ fixation, heat removal or pollutant transport, which are essential to the Earth’s climate. This presentation describes 3D conveyor routes across the Atlantic Meridional Overturning Circulation (AMOC), with the support of Lagrangian Coherent Structures. Our findings show the geometry of mixing structures in the upper and deep ocean layers. We identify among others, zones linked to vertical transport and characterize vertical transport time scales.

 

Acknowledgments: RB acknowledges support of a CSIC JAE intro fellowship.  AMM and GGS acknowledge the support of a CSIC PIE project Ref. 202250E001 and MICINN grants PID2021-123348OB-I00 and EIN2020-112235. AMM is an active member of the CSIC Interdisciplinary Thematic Platforms POLARCSIC. JC acknowledges the support of the RyC project RYC2018-025169, the Spanish grant PID2020-114043GB-I00 and the Catalan Grant No. 2017SGR1049 and the ``Beca Leonardo a Investigadores y Creadores Culturales 2022 de la Fundación BBVA''.