Image description

Thirteen-year average M (Oct. 11, 1992 through Jan. 21, 2006) from satellite altimetry. Here M is the average of the zonal variance minus the meridional variance, normalized by their sum. For depths greater than 1000m, the two six-year average M fields (Jan. 2, 1994 through Dec. 31, 1999 and Jan. 2, 2000 through Dec. 31, 2005) are spatially correlated at r=0.55 globally and r=0.41 for latitudes poleward of 25 deg. Higher correlations found when including shallower depths. Contours are bottom topography with CI=1000m.

Background

More background on the project is found in the following seminar .