MAL12

Deep water masses are the driver of the global ocean circulation, critical for transporting oxygen and nutrients throughout the water column, and a crucial mitigator of current climate change. They are also notoriously hard to observe: they form in winter in ice-infested areas, and then travel around the globe too deep for most autonomous instruments to monitor them. Therefore, although they represent at least half of the ocean volume, we still know very little about their circulation and variability.

What we do know is that they are already changing, much faster than expected.

From a ship in the Southern Ocean to models in the Arctic, I will share with you my obsession for these fascinating deep waters; highlight the blind spots that remain; and describe recent and upcoming deep-water-targeting projects that get me excited.

How to cite: Heuzé, C.: Global deep waters: what we know, what we know we do not know, and what we should do about it, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-1695, https://doi.org/10.5194/egusphere-egu22-1695, 2022.

Based on new observations and on improved ocean and climate modeling, the last decade was marked by a seminal progress in our understanding of the North Atlantic circulation.  The presentation will summarize recent insights and discuss future challenges. Based on new observations and on improved ocean and climate modeling, the last decade was marked by a seminal progress in our understanding of the North Atlantic circulation.  The presentation will summarize recent insights and discuss future challenges. Based on new observations and on improved ocean and climate modeling, the last decade was marked by a seminal progress in our understanding of the North Atlantic circulation.  The presentation will summarize recent insights and discuss future challenges.  

How to cite: Rhein, M.: On the North Atlantic Circulation, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-1488, https://doi.org/10.5194/egusphere-egu22-1488, 2022.