Gyre-scale deep convection in the subpolar North Atlantic Ocean during winter 2014-2015

• Published in: Geophysical Research Letters
• Main Authors: Piron, A., Thierry, V., Mercier, H., Caniaux, G.
• Other Authors: Laboratoire d'Océanographie Physique et Spatiale (LOPS), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), ANR-10-EQPX-0040,NAOS,Observations de l'océan global pour l'étude et la prévision de l'océan et du climat: préparation de la nouvelle décennie d'Argo(2010)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2017
• Subjects: North Atlantic ocean; deep convection; Argo; air-sea forcing; mixed layer depth; preconditioning; [SDU]Sciences of the Universe [physics]; Irminger Sea; Labrador Sea; North Atlantic
• Online Access: https://insu.hal.science/insu-03682755; https://insu.hal.science/insu-03682755/document; https://insu.hal.science/insu-03682755/file/Geophysical%20Research%20Letters%20-%202017%20-%20Piron%20-%20Gyre%25u2010scale%20deep%20convection%20in%20the%20subpolar%20North%20Atlantic%20Ocean%20during%20winter.pdf; https://doi.org/10.1002/2016GL071895

International audience Using Argo floats, we show that a major deep convective activity occurred simultaneously in the Labrador Sea (LAB), south of Cape Farewell (SCF), and the Irminger Sea (IRM) during winter 2014-2015. Convection was driven by exceptional heat loss to the atmosphere (up to 50% hig...