Argo Spain is the Spanish contribution to the international program Argo, a worldwide in situ global observing system based on autonomous profiling floats. Its objective is to provide a significant and sustained Spanish contribution to the global ocean monitoring, and includes observations of temperature, salinity, currents and other water mass properties. It is primarily focused on the Atlantic and the Western Mediterranean, in support of the spanish marine research community, but taking into account the global needs of the Argo Program.
In 2006 the Spanish Institute of Oceanography began (IEO) the program Deep hydrographic section around the Canary Islands (Raprocan), in order to establish the scales of variability in the range decadal/subdecadal of the subtropical gyre, specifically in its eastern margin. The program consist of a 10 day cruise, twice a year, around the Canary Islands. The northern section, that samples the Costal Transition Zone, from the upwelling off northwest Africa to the open ocean waters of the subtropical gyre, has been sampled since 1997.