Browsing by Author "Falchetti, Silvia"
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The impact of covariance localization on the performance of an ocean EnKF system assimilating glider data in the Ligurian Sea
Falchetti, Silvia; Alvarez, Alberto (CMRE, 2019/05)Data assimilation through an ensemble Kalman filter (EnKF) is not exempt from deficiencies, including the generation of long-range unphysical correlations that degrade its performance. The covariance localization technique ... -
Physical and dynamical characteristics of a 300 m-deep anticyclonic eddy in the Ligurian Sea (Northwest Mediterranean Sea): evidence from a multi-platform sampling strategy
Borrione, Ines; Falchetti, Silvia; Alvarez, Alberto (CMRE, 2019/06)We describe the physical and dynamical characteristics of a mesoscale anticyclonic eddy observed in August 2013 over the shelf-break region of the northeastern sector of the Ligurian Sea, between the northeastern edge of ... -
A relocatable EnKF ocean data assimilation tool for heterogeneous observational networks
Falchetti, Silvia; Alvarez, Alberto; Onken, Reiner (CMRE, 2019/06)This study investigates the performance of a multivariate Ensemble Kalman Filter coupled with a relocatable limited-area configuration of the Regional Ocean Modeling System to predict ocean states by assimilating a ...