L4 products monitoring

Contribution of the different altimeters to the gridded product

Degrees of Freedom of Signal (DFS) are used in order to quantify the fraction of multi-mission merged product (L4) coming from each sensor. See Dibarboure et al (2010) for more info on DFS.

Formal mapping error

The following figure presents the monitoring of the mean formal mapping error  associated to the gridded SLA product (6-day delay map) for the Global ocean, Mediterranean Sea and Black Sea (see DUACS products).

Daily mean monitoring of the formal mapping error : Global product
Daily mean monitoring of the formal mapping error : Mediterranean Sea product
Daily mean monitoring of the formal mapping error : Black Sea product

Eddy Kinetic Energy

The Eddy Kinetic Energy is deduced from the anomalies of the geostrophic current. The mean EKE is monitored over the Mediterranean, Black Sea and Global ocean excluding the equatorial band (±5°N) (see DUACS products).

Daily mean monitoring of the eddy kinetic energy (EKE): Global product (equatorial band excluded)
Daily mean monitoring of the eddy kinetic energy (EKE): Mediterranean Sea product
Daily mean monitoring of the eddy kinetic energy (EKE): Black Sea product