Observing the full ocean volume using Deep Argo floats

• DOI: 10.3389/fmars.2023.1287867
• Publication Date: 2023-11-29T05:06:30Z
• Authors: Nathalie V. Zilbe...; Virginie Thierry; Brian King; Matthew Alford; Xavier André; Kevin Balem; Nathan Briggs; Zhaohui Chen; Cécile Cabanes; Laurent Coppola; Giorgio Dall’Olmo; Damien Desbruyères; Denise Fernandez; Annie Foppert; Wilford Gardner; Florent Gasparin; Bryan Hally; Shigeki Hosoda; Gregory C. Johnson; Taiyo Kobayashi; Arnaud Le Boyer; William Llovel; Peter Oke; Sarah Purkey; Elisabeth Remy; Dean Roemmich; Megan Scanderbeg; Philip Sutton; Kamila Walicka; Luke Wallace; Esmee M. van Wijk
• Keywords: Argo; Deep ocean water; Ocean observations; Abyssal zone

The ocean is the main heat reservoir in Earth’s climate system, absorbing most of top-of-the-atmosphere excess radiation. As warms, anomalously warm and fresh waters densest layers formed near Antarctica spread northward through abyssal ocean, while successions warming cooling events are seen deep-ocean Greenland. freshening expands volume raises sea level. While temperature salinity characteristics large-scale circulation upper 2000 m well monitored, present observing network limited by sparse sampling deep below m. Recently developed autonomous robotic platforms, Deep Argo floats, collect profiles from surface to seafloor. These instruments supplement satellite, Core float, ship-based observations measure freshwater content full close level budget. Here, value planned strategy implement global array described. Additional objectives may include dissolved oxygen measurements, testing mixing optical scattering sensors. development an emerging bathymetry dataset using measurements also