Information provided by satellites on the amount of chlorophyll-A and the roughness of the sea following the eruption of the underwater volcano off the island of El Hierro (Spain) did not coincide with the actual data collected in situ by vessels carrying out oceanographic studies. The models have been corrected by researchers who have for the first time processed very high resolution images of this kind of natural phenomenon captured from space.

Source: El Hierro Volcano helps improve algorithms used by satellites