The US $21-million Southern Ocean Carbon and Climate Observations and Modeling Project (SOCCOM) is deploying almost 200 advanced probes to monitor several chemical and biological variables in the Southern Ocean. The advanced probes will be added to an existing international Argo network of 3,900 floats; the floats periodically dive to depths of 2,000 meters measuring temperature and salinity. In hopes to extent the 2,000 meter limit, NOAA has developed a Deep Argo project to monitor ocean variables down to 6,000 meters. Nine Deep Argo floats have been deployed south of New Zealand in January and similar pilot arrays have been planned in the Indian Ocean and the North Atlantic.
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