Since 2000 oceanographers have been continuously monitoring the temperature and salinity of the upper 2000m of the worlds oceans using an array of free drifting Argo floats. Every 10 days these floats sink to a depth 1000m and drift at that depth for 9 days. On the 10th day they sink to 2000m and then return to the surface to transmit their data to a satellite. These floats can operate for up to 5 years and their data are made publicly available within hours of collection ( available here ).
|Positions of the floats that have delivered data within the last 30 days|
Our colleagues at NOC are working on one pilot program and during an expedition in this region one year ago 4 deep Argo floats where deployed. It is one of these that we recovered this week. During this expedition we are deploying 6 more deep Argo floats from Scripps Institution of Oceanography in the USA.
|Deep Argo float recovery|