Supplementary information

From the following article

Sea surface cooling at the Equator by subsurface mixing in tropical instability waves

J. N. Moum, R.-C. Lien, A. Perlin, J. D. Nash, M. C. Gregg & P. J. Wiles

Nature Geoscience 2, 761 - 765 (2009) Published online: 11 October 2009

doi:10.1038/ngeo657