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A relocatable EnKF ocean data assimilation tool for heterogeneous observational networks

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Abstract
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 heterogeneous data set involving underwater gliders and ship observations. In particular, two different ensemble initialization techniques are exploited and evaluated with the dataset collected during the REP13-MED experiment conducted by CMRE on 5-20 August 2013 in the Ligurian Sea. Results show that the forecast skill is significantly improved when the free ensemble is initialized from a long term climatology of the Mediterranean Forecast System. In particular the results obtained reveal significant increased skills in salinity forecasting in comparison with the previous ensemble initialization technique [6].

URI
http://hdl.handle.net/20.500.12489/873

Report Number
CMRE-PR-2019-133

Source
In: Proceedings of the OCEANS 2015 MTS/IEEE Conference, 18-21 May 2015, Genoa, Italy, doi: 10.1109/OCEANS-Genova.2015.7271359

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Date
2019/06

Author(s)
Falchetti, Silvia
; 
Alvarez, Alberto
; 
Onken, Reiner

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CMRE-PR-2019-133.pdf (2.713Mb)

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