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MSLA - Maps of Sea Level Anomalies and Geostrophic Velocity Anomalies

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Abstract: Contents: multimission gridded sea surface heights computed with respect to a
seven-year mean

Use: study of ocean variability (mesoscale circulation, seasonal variation, El
Niño...), including operational oceanography (near-real time products)

Gridded data (1/3°x1/3° on a Mercator grid), available in near-real time and in
delayed time in NetCDF format.

In delayed time, two types of products are ... View entire text
Related URL
Description: MSLA - Maps of Sea Level Anomalies data access page.

Description: AVISO homepage.
Geographic Coverage
Spatial coordinates   
  N: 90.0   S: -90.0   E: 180.0   W: -180.0

Temporal Coverage
Start Date: 1992-09-23
Paleo Temporal Coverage
Data Resolution
Latitude Resolution: 0.25 deg
Longitude Resolution: 0.25 deg
ISO Topic Category
Access Constraints Access to Ssalto/Duacs products

Ssalto/Duacs products use Jason-1, Envisat, GFO, ERS-1, ERS-2 and
Topex/Poseidon data. File format is NetCDF, but the system also delivers images
in Postscript format (only for gridded products).

Ssalto/Duacs system delivers global and specific regional products; combined
datasets ... View entire text
Use Constraints When using Ssalto/Duacs data (NRT or DT-(M)SLA and (M)ADT), please cite: "The
altimeter products were produced by Ssalto/Duacs and distributed by Aviso, with
support from Cnes".

See for
additional details.
Data Set Progress
Data Center
Archiving, Validation and Interpretation of Satellite Oceanographic Data Supplemental Info
Data Center URL:

Data Center Personnel
Phone: (33) 561-394-780
Fax: (33) 561-751-014
Email: aviso at
Contact Address:
CLS - AVISO operation center
8-10 rue Hermes
Parc Technologique du Canal
City: Ramonville-StAgne Cedex
Postal Code: 31526
Country: France
Distribution Media: FTP
Distribution Format: NetCDF
Phone: (+33) 561-394-768
Fax: (+33) 561-751-014
Email: aviso at
Contact Address:
CLS - Space Oceanography Division
8-10 rue Hermes
Parc Technologique du Canal
City: Ramonville-St Agne
Postal Code: 31526
Country: France
View entire list
- Le Traon, P.Y., P. Gaspar, F. Bouyssel, H. Makhmara, 1995, "Using
TOPEX/POSEIDON data to enhance ERS-1 data", J. Atm. Ocean. Techn., 12, 161-170
- Le Traon, P.Y., F. Ogor, 1998, "ERS-1/2 orbit improvement using
TOPEX/POSEIDON: the 2 cm challenge"
- Le Traon, P.Y., F. Nadal, N. Ducet, 1998, "An improved mapping method of
multi-satellite altimeter data", J. Atm. Ocean. Techn., 25, 522-534
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 1999-11-23
Last DIF Revision Date: 2016-01-27

Link to Web Site