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Aviso global sea surface height products

Aviso has been distributing Topex/Poseidon and ERS altimetric data worldwide since 1992. Since launches of new altimetric mission, series of products has been completing the Aviso catalogue. Following table presents applications, features and time availability of all available products obtained by satellite or combining available data of all satellites.

The Copernicus Marine and Environment Monitoring Service (CMEMS) has taken over the whole processing and distribution of Ssalto/Duacs gridded and along-track Sea Level Anomalies (MSLA-H and SLA-H), Absolute Dynamic Topographies (MADT-H and ADT-H) and Geostrophic velocities (MSLA-UV and MADT-UV) over the Global Ocean, Mediterranean Sea, Black Sea, European Seas and Acrtic Ocean areas, in Delayed-Time and in Near-Real-Time . All those products were formerly distributed by Aviso+ with no changes in the scientific content. Note that the Mozambique area and the Climatologies are still disseminated by Aviso+. 

Gridded products

Gridded products

Ssalto/Duacs Sea Level anomalies

Condition of access : The Copernicus Marine and Environment Monitoring Service (CMEMS) has taken over the whole processing and distribution of those products (formerly distributed by Aviso+ with no changes in the scientific content). The detailed description of products and links to CMEMS catalogue is available here.
Contents: gridded sea level anomalies computed with respect to a twenty-year mean
Use: study of ocean variability (mesoscale circulation, seasonal variation, El Niño...), including operational oceanography (near-real time products)

-DT-MSLA-H
-NRT-MSLA-H

Ssalto/Duacs Gridded geostrophic velocity anomalies (1/4°x1/4° on a Cartesian grid)

Condition of access : The Copernicus Marine and Environment Monitoring Service (CMEMS) has taken over the whole processing and distribution of those products (formerly distributed by Aviso+ with no changes in the scientific content). The detailed description of products and links to CMEMS catalogue is available here
Contents: gridded geostrophic velocity anomalies computed with respect to a twenty-year mean
Use: study of ocean variability (mesoscale circulation, seasonal variation, El Niño...), including operational oceanography (near-real time products)

-DT-MSLA-UV
-NRT-MSLA-UV

Ssalto/Duacs Monthly mean and Climatology Gridded Sea level anomalies (1/4°x1/4° on a Cartesian grid)

Contents: Monthly and seasonal gridded sea surface heights computed with respect to a twenty-year mean (averaged sea surface heights averaging month by month and climatological sea surface heights calculated by averaging sea level anomalies over a same month).
Use: long-term variability, seasonal and climate studies

- DT-Monthly MSLA-H
DT-Seasonal MSLA-H
DT-MSLA-H-Clim

Ssalto/Duacs Gridded Absolute Dynamic Topography & absolute geostrophic velocities (1/4°x1/4° on a Cartesian grid)

Condition of access : The Copernicus Marine and Environment Monitoring Service (CMEMS) has taken over the whole processing and distribution of those products (formerly distributed by Aviso+ with no changes in the scientific content). The detailed description of products and links to CMEMS catalogue is available here.
Contents: gridded sea surface heights above geoid and corresponding absolute geostrophic velocities
Use: study of the general circulation (ocean gyres ...)

-DT-MADT-H-UV
-NRT-MADT-H-UV

Mean Sea Level Cnes/Legos/CLS (2°x 2° on a Mercator grid)

Contents: Map of regional patterns of observed sea level (mm/year), time serie of the reference mean sea level since January 1993. Use: study of the climate change. 		- MSL

Along-track products

Along-track products 

Ssalto/Duacs Sea level anomalies (CMEMS)

Condition of access: The Copernicus Marine and Environment Monitoring Service (CMEMS) has taken over the whole processing and distribution of those products (formerly distributed by Aviso+ with no changes in the scientific content). The detailed description of products and links to CMEMS catalogue is available here.
Contents: along-track sea surface heights, computed with respect to a twenty-year mean.
Use: study of ocean variability (mesoscale circulation, seasonal variation, El Niño...), including operational oceanography (near-real time products)

- DT-SLA-H
- NRT-SLA-H

Ssalto/Duacs Absolute Dynamic Topography

Condition of access: The Copernicus Marine and Environment Monitoring Service (CMEMS) is taking over the whole processing and distribution of those products (formerly distributed by Aviso+ with no changes in the scientific content). The detailed description of products and links to CMEMS catalogue is available here.
Contents: along-track sea surface heights above geoid
Use: study of the general circulation (ocean gyres ...)

- DT-ADT-H
- NRT-ADT-H

OSTM/Jason-2 Sea Surface Height Anomalies

Contents: OSTM/Jason-2 along-track sea surface heights computed with respect to CLS01 mean sea surface. Available in real-time, near-real time and delayed-time.
Use: from operational oceanography and marine meteorology (real time products) to the study of ocean variability.

- OGDR-SSHA

- IGDR-SSHA

- GDR-SSHA

OSTM/Jason-2 Experimental coastal and hydrology products

Contents: OSTM/Jason-2 20 Hz along-track measurements, corrections to apply, in near-real time with specific processing.
Use: coastal applications, operational oceanography (near-real time), environmental monitoring (flooding/drought).

- Coastal

- Hydrology

Monomission Corrected Sea Surface Heights

Contents: along-track corrected sea surface heights wrt reference ellipsoid, with corrections, significant wave heights and backscatter coefficient.
Use: stationary or long-term geophysical and ocean phenomenon studies; thanks to the corrections package, user is able to substitute algorithms in accordance with his needs.

- DT-CorSSH and L2P 

Geophysical Data

Contents: along-track altimetric measurements averaged over 1 seconde, corrections to apply
Use: geophysical studies, operational oceanography

- IGDR
- GDR

Geophysical and sensor data

Contents: 20 Hz along-track waveform information, corrections to apply
Use: expert use; coastal, ice studies or anything requesting a different retracking function than the one used for ocean

- Poseidon-1 Waveforms
- SGDR
(Jason-1, Envisat, Jason-2) 
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