FN Archimer Export Format PT C TI CROSSROAD. Climatic ROle of Subpolar Slopes: a Regional Observational Array off NewfoundlanD BT AF DESBRUYERES, Damien MERCIER, Herle THIERRY, Virginie LHERMINIER, Pascale GULA, Jonathan CYR, F KIEKE, D HOLLIDAY, P SMEED, D AS 1:1;2:2;3:;4:;5:3;6:;7:;8:;9:; FF 1:PDG-ODE-LOPS-OH;2:;3:PDG-ODE-LOPS-OH;4:PDG-ODE-LOPS-OH;5:;6:;7:;8:;9:; C2 IFREMER, FRANCE CNRS, FRANCE UBO, FRANCE SI BREST SE PDG-ODE-LOPS-OH PDG-ODE-LOPS UM LOPS UR https://archimer.ifremer.fr/doc/00503/61502/65316.pdf LA English DT Poster AB An observational experimental setup will be proposed to investigate the dynamics and thermodynamics of the deep western boundary current in the “transition zone” of the North Atlantic, around Flemish Cap, Newfoundland. Located between the international RAPID and OSNAP mooring arrays, this region represents a unique choke point for most of the North Atlantic large-scale currents and water masses involved in the Atlantic Meridional Overturning Circulation (AMOC). Horizontal export and latitudinal coherence, water mass transformation and vertical motions, as well as shelf-slope-interior exchanges will be studied with repeat hydrography, moorings, drifting and profiling floats, and gliders. Multidisciplinary approaches are likely, including biogeochemistry and paleoclimatology (local collaborations). International collaborations are underway with DFO (Canada) and University of Bremen (Germany). Cruises would ideally take place in 2022 and 2024. PY 2019 PD JUL ID 61502 ER EF