An animation of sea surface temperature and height anomalies on a rotating globe from January 1997 to November 1998. This animation zooms to the Pacific, then rotates to the Indian Ocean and ends on the Atlantic Ocean.
The 1997-98 El Niño was truly a global event. The sequence shows a superposition of sea surface temperature anomalies on anomalies of the sea surface elevation.
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 22.214.171.124.0