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Aviso+
Data
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Auxiliary products

Auxiliary products

Auxiliary products are most often satellite altimetry by-products, but sometimes they are combined with other types of data (in situ, tide gauges..).

Mean Sea Surface MSS_CNES_CLS2022 Mean sea surface height wrt T/ P or WGS84 reference ellisoid computed on a 20 years period (1993-2013) with 29 years of altimetry data. This Mean Sea Surface (also called MSS) corresponds to marine geoid undulations (±120 meters ) and to the "permanent" sea level rise (1-2 meters).
Mean Dynamic Topography MDT_CNES-CLS22 Mean sea surface height above geoid computed on a 20 years period (1993-2012). The Mean Dynamic Topography results from the ocean mean geostrophic currents
Mean Dynamic Topography MDT_HYBRID-CNES-CLS22-CMEMS2020 Contains the MDT-CNES-CLS22 for global ocean and the CMEMS 2020 MDTs for Black Sea and Mediterranean Sea
Mean Dynamic Topography SMDT2014-20Y_MED Mean sea surface height above geoid computed on a 20 years period (1993-2012). This sea surface height is specifically computed over Mediterranean Sea.
Global tide FES2014 Ocean tide elevations (amplitude, phase), tide loading and tide currents computed by up-to-date finite elements modelling and data (both tide gauges and altimeter) assimilation.
Internal Tide MIOST MIOST-IT MIOST-IT solution is based on an original gridding process using ocean signals modes variability and all altimeter measurements available on the nearly entire altimeter era.
Coastal tide X-TRACK Tidal Constants Coastal tidal constants computed for 73 constituents by using harmonic analysis for long-time series missions.
Atmospheric Correction Dynamic Atmospheric Correction Correction of the ocean response to atmospheric wind and pressure forcing, computed using Mog2D baroropic model for high frequencies (i.e. less than 20 days), and an Inverted Barometer correction for lower frequencies.
Atmospheric Correction Dynamic Atmospheric Correction dedicated to SWOT Calval phase Correction of the ocean response to atmospheric wind and pressure forcing, computed using Mog2D baroropic dedicated to SWOT Calval Phase (cut-off 2 days)
Atmospheric Correction GPD+ Wet tropospheric correction GPD+ dataset where the correction is computed by combining all available observations in the vicinity of the point: valid measurements from the on-board microwave radiometer, from Global Navigation Satellite System (GNSS) coastal and island stations, and from scanning imaging MWR on board various remote sensing missions.
Atmospheric Correction Wet tropospheric correction from water vapour climate data records In order to reduce the long term stability uncertainty of the GMSL, the WTC derived from highly stable water vapour climate data records (CDRs) from independent measurements on board meteorological satellites is proposed.

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