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.
Ssalto/Duacs products are intercalibrated at crossover points; considering two datasets (for example coming from Jason-1 and Envisat), only Ssalto/Duacs products may be homogeneous at a given point.
Ssalto/Duacs gridded products are devoted to scientific applications and non-commercial use.
Ssalto/Duacs Gridded Sea level anomalies & geostrophic velocity anomalies (1/4°x1/4° on a Cartesian grid)
Contents: gridded sea surface heights computed with respect to a twenty-year mean, and corresponding geostrophic velocity anomalies
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).
Ssalto/Duacs Gridded Absolute Dynamic Topography & absolute geostrophic velocities (1/4°x1/4° on a Cartesian grid)
Contents: gridded sea surface heights above geoid and corresponding absolute geostrophic velocities
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.
Ssalto/Duacs Sea level anomalies
Contents: along-track sea surface heights, computed with respect to a twenty-year mean.
Ssalto/Duacs Absolute Dynamic Topography
Contents: along-track sea surface heights above geoid
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.
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.
Monomission Corrected Sea Surface Heights
Contents: along-track corrected sea surface heights wrt reference ellipsoid, with corrections, significant wave heights and backscatter coefficient.
Contents: along-track altimetric measurements averaged over 1 seconde, corrections to apply
Geophysical and sensor data
Contents: 20 Hz along-track waveform information, corrections to apply