SST spatial anisotropic covariances from METOP-AVHRR data

Pierre Tandeo (1, 2) , Emmanuelle Autret (3, 4) , Bertrand Chapron (4) , Ronan Fablet (3, 5) , René Garello (3, 1)

1 ITI - Département Image et Traitement Information
2 Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
3 Lab-STICC_TB_CID_TOMS
4 IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer
5 SC - Département Signal et Communications

The Advanced Very High Resolution Radiometer (AVHRR) instrument on-board the METOP satellite is designed to provide very accurate measurements of Sea Surface Temperature (SST). In this work, using one year of METOP-AVHRR data and a geostatistical approach, we characterize the spatial anisotropy and non-stationarity of the SST variability using oriented ellipsoids. The method is also able to separate the true SST variability from the artificial error introduced by the METOP-AVHRR sensor. These spatial parameters are then used for producing variability atlases (available on-line) over the whole ocean.

Domaines: Traitement du signal et de l'image [eess.SP]; Applications [stat.AP]

Pierre Tandeo, Emmanuelle Autret, Bertrand Chapron, Ronan Fablet, René Garello. SST spatial anisotropic covariances from METOP-AVHRR data. Remote Sensing of Environment, 2013, 141 (5), pp.144 - 148. ⟨10.1016/j.rse.2013.10.024⟩. ⟨hal-00946860⟩