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Mozambique area (M)SLA - (Map of) Sea Level Anomalies & geostrophic velocity anomalies

Types of dataset: Ssalto/Duacs multimission altimeter products

Contents: multimission sea surface heights computed with respect to a twenty-year mean, along-track or gridded with a 1/8°x1/8° spatial resolution on a cartesiangrid.

Use: regional studies; ocean variability (mesoscale circulation, seasonal variation...), including operational oceanography (near-real time products)

Condition of access: Ssalto/Duacs gridded geostrophic velocities products are devoted to scientific applications and non-commercial use (conditions of use are detailed in the licence agreement).  All Ssalto/Duacs product users need an account, see Access to Ssalto/Duacs data.

Data access service: see Data access service. FTP delivers the gridded and along-track data (the most recent data day-0 in NRT). Whereas the Opendap/geographic-temporal extraction tool/LAS only delivers gridded data more than one month.

Description: regional product resulting from specific processes, available in near-real time. 

For gridded merged data, each map represents the sea state for a given day as a snapshot of the ocean. A formal mapping error variable is also available in the MSLA file. Geostrophic velocity anomalies are delivered in a specific file.

Geographic coverage: Mozambique area (30.0625°E, 59.9375°E / -29.9375°S)

Format: NetCDF4-CF

Tools :

Copyright : 2011-ongoing CLS-Cnes.


NRT along-track (SLA-H)

Authenticated access service
Frequency Delivery delay Data period File weight

For FTP please refer to


Daily 3 hours to 3 days from January 2017 - ongoing 9 Ko per file (zipped)
Saral 3 hours to 3 days
Cryosat-2 3 hours to 3 days (best effort)
Sentinel-3A 3 hours to 3 days
Sentinel-3B 3 hours to 3 days

NRT gridded (MSLA-H, MSLA-UV)

Authenticated access service<br/> Frequency Delivery delay Data period File weight
Merged (all available satellites)

For FTP please refer to 


Daily 0 day from January 2017- ongoing 135 KB per file (zipped)
Live Access Server 30 days
TDS 30 days
Gridded Data Extraction Tool 30 days
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