FIGURE 3. Decadal differences in the tropical Pacific between 1990–99 and 1970–77.
From the following article:
Slowdown of the meridional overturning circulation in the upper Pacific Ocean
Michael J. McPhaden and Dongxiao Zhang
Nature 415, 603-608(7 February 2002)
doi:10.1038/415603a

a, Wind stress difference (in N m-2) for 1990–99 minus 1970–77, based on the Florida State University wind product44. Overplotted is the difference in sea surface temperature (in °C) the same time period50. b, Depth difference (in m) of the 25.0 kg m-3 potential density surface for 1990–99 minus 1970–77.
