This panel maps the El
Niño signal in animations of surface data from three satellite
instruments: at the top is wind speed from NSCAT, in the middle is sea surface
height from TOPEX/Poseidon, and on the bottom is temperature from AVHRR. The
ability to see at a glance if a pattern of interaction exists between the three
maps is just as important as the data itself. This still is from May 1, 1997.