AVISO SSH Seasonal Progression

Ted Strub and Corinne James

Animations of the seasonal progression of Sea Surface Height as measured by altimeter from gridded AVISO data covering the time period 1 September 1999 through 31 October 2009. Four seasonal harmonics were used to recontruct the annual cycle in five day intervals. The analysis presented here is restricted to the period of the QuikSCAT surface wind time series, for comparisons in a recent manuscript. There is little difference between these and fields calculated using the full AVISO altimeter record or the full record minus the years 1997-1998 (eliminating the 1997-98 El Nino).

The images below are monthly averages of Sea Surface Height as measured by altimeter from gridded AVISO data covering the time period 1 September 1999 through 31 October 2009. Click on any image for a larger view.

The overall annual mean has been removed from all fields.