Types of dataset: Ssalto/Duacs multimission altimeter products. From 1993 to today, the long delayed-time dataset allows to compute statistical means of MSLA over different periods of time. Averaged MSLA and Climatological MSLA are created from weekly Ssalto/Duacs - DT MSLA - Merged Product - Homogeneous Global Processing (i.e. Reference serie) files (See DT-MSLA-Reference serie for further information).

Three kinds of means are proposed:

• Monthly averaged MSLA corresponds to the weekly maps of delayed-time sea level anomalies averaging month by month from 1992 to ongoing year. We obtain one file and one map per month since December 1992.
• Seasonal mean of MSLA corresponds to the weekly maps of delayed-time sea level anomalies averaging season by season. We obtain one file and one map per season (JFM - AMJ - JAS- OND).
• Climatological monthly MSLA are calculated by averaging the weekly maps of delayed-time sea level anomalies over a same month from December 1992 to present. We obtain one data file and one map for each month.

Contents: multimission gridded sea surface heights computed with respect to a seven-year mean profile (1993-1999), and including the seasonal variability (no annual cycle is removed). When a weekly MSLA is overlapping two consecutive months, the mean is calculated in proportion to the representation of the weekly MSLA in the month.
Use: long-term variability, seasonal and climate studies.
Description: gridded product  in delayed time at high resolution (1/3°x1/3°, Mercator grid).
Geographic coverage: global, from 0°/360° for longitudes and -82°/82° for latitudes.

Format: NetCDF

Tools:

• User Handook: Ssalto/Duacs User Handbook : (M)SLA and (M)ADT Near-Real Time and Delayed Time Products
• Data reading software

Description: Averaged DT-MSLA corresponds to the weekly maps of delayed-time sea level anomalies averaging month by month from 1993 to ongoing year.

Copyright : 2009-ongoing CLS

Description: Averaged DT-MSLA corresponds to the weekly maps of delayed-time sea level anomalies averaging season by season: January-February-March / April-May-June / July-August-September / October-November-December.

Copyright : 2010-ongoing CLS

Description: Climatological Maps of Sea Level Anomaly are calculated from the weekly maps of delayed-time sea level anomalies over a same month from 1993 to present. We obtain one data file and one map for each month.

Copyright : 2009-ongoing CLS