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SSALTO/DUACS Experimental products: along-track and gridded Sea Level Heights and velocities

Types of dataset: Ssalto/Duacs mutlimission altimeter products "Experimental". Preparation to the SWOT Era.
Contents: multimission sea surface heights computed with respect to a twenty-year mean,

  • along-track Sea Level Anomalies at 5Hz, 
  • gridded Sea Level Heights dedicated to Arctic Ocean (EASE2 grid definition) with details in a dedicated page
  • gridded Sea Level Heights and geostrophic velocities computed with Dynamic Interpolation (1/8°x1/8° and 1/4°x1/4° on cartesian grid),
  • gridded Sea Level Anomalies and geostrophic velocities combining altimetry and drifters (1/4°x1/4° on a cartesian grid),
  • gridded optimally merged velocities combining altimetry and SST (1/4°x1/4° on a cartesian grid). 

Use: regional studies, ocean variability (mesoscale circulation,...),
Condition of access :  Users should keep in mind that these products are experimental products. Notably, they are not produced on an operational basis. 
Citation: When using the SSALTO/DUACS experimental products, please cite: "Those products were processed by SSALTO/DUACS and distributed by AVISO+ ( with support from CNES”
Description: 4 regional products and 1 global product resulting from specific processes, available in delayed time. Note that the gridded products combining altimetry and SST have been calculated in the framework of three different projects: 1/ a Marie-Curie Fellowship cofunded by the European Union under the FP7-PEOPLE-Cofunding of Regional, National and International Programmes Grant Agreement 600407 and the RITMARE FLAG project (2014-2016), 2/ the ESA Globcurrent project (2014-2018), 3/ the DUACS-MR CNES project (2016-2018).

Geographic coverage:  few test zones are provided to users:

  • along-track at 5Hz:  North Atlantic, Agulhas current
  • gridded SLA dedicated to Arctic Ocean: Arctic Ocean
  • gridded computed with Dynamic Interpolation: 2 zones: Gulf Stream , Udinstev
  • gridded combining altimetry and drifters: Gulf of Mexico
  • gridded combining altimetry and SST : global

Tools and references:

Format: NetCDF-CF
Copyright : 2015-2018 - CLS-Cnes

Delayed-time along-track 5Hz products

SatelliteAreaTypeAuthenticated access serviceData periodFile weight
Jason -3

(v 01_00)

North Atlantic
(v 01_00 and v02_00)

along-track please refer to MY AVISO+2016/03/28-2017/04/02max 700 KB per file (zipped)
Jason -22014/12/29-2016/03/06

Delayed-time gridded SLA dedicated to Arctic Ocean products

SatelliteAreaTypeAuthenticated access serviceData periodFile weight
SARAL/AltiKaArcticgridded (monomission)please refer to MY AVISO+2013/03/28-2018/12/27117 Mb
Cryosat-22010/07/30-2018/12/25170 Mb
Sentinel-3A2016/07/15-2018/06/1540 Mb
Mergedgridded (mutlimission)2016/07/01-2018/06/302.9 Gb

Delayed-time gridded Dynamic Interpolation product

SatelliteAreaTypeAuthenticated access serviceData periodFile weight
Merged Gulf Stream griddedplease refer to MY AVISO+2015/01/01-2015/12/15231 KB per file (zipped)
MergedCircumpolar (undinstev)2015/11/01-2016/04/30334 KB per file (zipped)

Delayed-time gridded combining altimetry and drifters

SatelliteAreaTypeAuthenticated access serviceData periodFile weight
MergedGulf of Mexicogriddedplease refer to MY AVISO+2015/09/01-2016/04/3056 KB per file (zipped)

Delayed-time gridded combining altimetry and SST

SatelliteAreaTypeAuthenticated access serviceData periodFile weight
MergedGlobalgriddedplease refer to MY AVISO+2014/12/31-2015/12/3125 MB per file (zipped)
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