In a recent article published in Frontiers in Marine Science, the history of the Argo program is examined and discussed. The Argo program began in 1998 when a team of international scientists, known as the “Argo Science Team,” proposed the idea for a global array of autonomous floats to obtain temperature and salinity measurements of the upper 2,000 meters of the global ocean. The new array of floats, called Argo, would go on to be endorsed as a pilot program of the Global Ocean Observing System and be used to fill in the large data gaps in ocean observations.
First-ever Daily Time Series Reveals the Strength of the Deep Ocean Circulation in the South Atlantic
In a recent study published in the journal Science Advances, oceanographers at AOML and the Cooperative Institute for Marine and Atmospheric Studies for the first time describe the daily variability of the circulation of key deep currents in the South Atlantic Ocean that are linked to climate and weather. The study found that the circulation patterns in the upper and deeper layers of the South Atlantic often vary independently of each other, an important new result about the broader Meridional Overturning Circulation (MOC) in the Atlantic.
Scientists are now looking to expand their observing capabilities to include the biology and chemistry of the oceans, currently available globally from ocean color satellites that measure chlorophyll, indicating algal blooms at the ocean surface. A recent paper in the Journal of Atmospheric and Oceanic Technology by AOML postdoctoral scientist Cyril Germineaud of the University of Miami’s Cooperative Institute for Marine and Atmospheric Studies and colleagues shows that in close synergy with ocean color satellites, a global array of biogeochemical sensors complementing the existing core Argo network could revolutionize our knowledge of the changing state of primary productivity, ocean carbon cycling, ocean acidification, and the patterns of marine ecosystem variability from seasonal to interannual time scales.