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Mediterranean Sea (M)ADT - Absolute Dynamic Topography & absolute geostrophic velocities (grid and along-track)

Types of dataset: Ssalto/Duacs multimission altimeter products
Contents: multimission surface heights above geoid, along-track or gridded (1/8°x1/8° on a regular grid); dynamic topography is the sum of sea level anomaly (M)SLA and mean dynamic topography (regional SMDT-MED-2014).
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+, no change in the scientific content). The gridded products can be vizualised on the AVISO+ Live Access Server (LAS).
Description:

  • MADT Heights and geostrophic velocities in delayed-time product is available from 1993 in the so-called "all-sat-merged" series: up-to-date datasets with a maximum of satellites at a given time (The informations about the satellites taken into account are given in the NetCDF file global attributes description named "platform").
  • MADT Heights and geostrophic velocities in near-real-time product is available during a few months at most, from the latest update of the delayed-time products to today.
  • ADT Heights in delayed-time product is available from 1993.
  • ADT Heights in near-real-time product is available during a few months at most, from the latest update of the delayed-time products to today. Note that contrary to AVISO+ former product, the CMEMS product is not subsampled. The user needs to do himself the subsampling (1 point on 2). 

Geographic coverage: Mediterranean Sea (30.0625°N-45.9375°N, 354.0625°E-396.937°E)

Copyright: 1993 - ongoing EU Copernicus Marine Service

Transition of SLA products to CMEMS:

The detailed list of products concerned by the transition and links to CMEMS catalogue are available here.

Useful links on CMEMS website:

 

 

 

See also: DUACS Product validation & information

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