Statistical descriptors of ocean regimes from the geometric regularity of SST observations - Archive ouverte HAL
Article Dans Une Revue IEEE Geoscience and Remote Sensing Letters Année : 2012

Statistical descriptors of ocean regimes from the geometric regularity of SST observations

Résumé

In this paper we evaluate to which extent the activity of ocean fronts can be retrieved from the geometric regularity of ocean tracer observations. Applied to sea surface temperature (SST), we propose a method for the characterization of this geometric regularity from curvature-based statistics along temperature level-lines in front regions. To assess the effectiveness of the proposed descriptors, we used 6 years (from 2003 to 2008)of daily SST observations of the regions of Agulhas in the South of Africa, and of Malvinas off the southern Brazilian coast. These experiments stress the relevance of geometric regularity features of tracer observation at ocean surface to characterize seasonal variations in ocean regimes.

Dates et versions

hal-00945379 , version 1 (12-02-2014)

Identifiants

Citer

Sileye Ba, Emmanuelle Autret, Bertrand Chapron, Ronan Fablet. Statistical descriptors of ocean regimes from the geometric regularity of SST observations. IEEE Geoscience and Remote Sensing Letters, 2012, 9 (5), pp.851 - 855. ⟨10.1109/LGRS.2012.2184258⟩. ⟨hal-00945379⟩
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