Europe - Mean and Climatology

Types of dataset:  Ssalto/Duacs multimission altimeter products. Since December 1992, the long delayed-time dataset allows to compute statistical means of seven variables over different periods of time. Averaged and Climatological data are created from daily Ssalto/Duacs Product - based on the best sampling available in time (i.e. "all sat merged" serie, see product sheet).

The set of variables are the following :

  • EKE (Eddy Kinetic Energy)
  • MSLA-H (Sea Level Anomaly H, sea surface height above sea level)
  • MSLA-U  (Sea Level Anomaly U, surface geostrophic eastward sea water velocity assuming sea level for_geoid)
  • MSLA-V (Sea Level Anomaly V, surface geostrophic northward sea water velocity assuming sea level for geoid)
  • MADT-H (Absolute Dynamics Topography H : sea surface height above geoid)
  • MADT-U (Absolute Dynamics Topography U, surface geostrophic eastward sea water velocity)
  • MADT-V (Absolute Dynamics Topography V, surface geostrophic northward sea water velocity)

Three kinds of means are proposed:

  • Monthly average corresponds to the weekly maps of delayed-time data averaging month by month from January 1993. We obtain one file and one map per month since January 1993.
  • Seasonal mean corresponds to the weekly maps of delayed-time data averaging season by season. We obtain one file and one map per season (JFM - AMJ - JAS- OND).
  • Climatological monthly are calculated by averaging the weekly maps of delayed-time data over a same month from January 1993 to the latest extension of the Delayed-time serie. We obtain one data file and one map for each month.

Contents: multimission gridded sea surface heights over Europe computed with respect to a twenty-year mean profile [1993-2012], and including the seasonal variability (no annual cycle is removed).

Use: long-term variability, seasonal and climate studies.

Condition of access: products delivered for scientific purposes only as stated in the licence agreement. Further information :  Access to Ssalto/Duacs data.

Data access service: these products are delivered through the authenticated FTP and the Opendap.

Description: gridded product  in delayed time at high resolution (1/8°x1/8°, cartesian grid).

Geographic coverage: Europe area 21°N-66°N / -25°W-42°E (including  Iberic-Biscaye-Ireland and Northwest shelves areas ; Baltic, Mediterranean and Black Seas).

Format: NetCDF-CF

Tools:

Monthly mean Maps

Description: Averaged data corresponds to the daily maps of delayed-time sea level anomalies averaging month by month from January 1993. 

Copyright : 1993-ongoing CLS

Satellite Distribution media Frequency Data period File weight
Merged Please refer to MY AVISO+ 3-4 months  January 1993 - ongoing 1 MB per file 

Seasonal mean Maps

Description: Averaged data corresponds to the daily maps of delayed-time sea level anomalies averaging season by season: January-February-March / April-May-June / July-August-September / October-November-December from 1993.

Copyright : 1993-ongoing CLS

Satellite Distribution media Frequency Data period File weight
Merged Please refer to MY AVISO+ 6 months  January 1993 - ongoing 1 MB per file (zipped)

Climatological Maps

Description: Climatological Maps are calculated from the maps of delayed-time data over a same month from January 1993 to the last extension of the Delayed-time products. We obtain one data file and one map for each month.

Copyright : 2009-ongoing CLS

Satellite Distribution media Frequency Data period File weight
Merged

Please refer to MY AVISO+

 6 months  January 1993 - ongoing 1 MB per file (zipped)