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Coupling Oceanic Observation Systems to Study Mesoscale Ocean Dynamics

Abstract : Understanding local currents in the North Atlantic region of the ocean is a key part of modelling heat transfer and global climate patterns. Satellites provide a surface signature of the temperature of the ocean with a high horizontal resolution while in situ autonomous probes supply high vertical resolution , but horizontally sparse, knowledge of the ocean interior thermal structure. The objective of this paper is to develop a methodology to combine these complementary ocean observing systems measurements to obtain a three-dimensional time series of ocean temperatures with high horizontal and vertical resolution. Within an observation-driven framework, we investigate the extent to which mesoscale ocean dynamics in the North Atlantic region may be decomposed into a mixture of dynamical modes, characterized by different local regressions between Sea Surface Temperature (SST), Sea Level Anomalies (SLA) and Vertical Temperature fields. Ultimately we propose a Latent-class regression method to improve prediction of vertical ocean temperature.
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https://hal-imt-atlantique.archives-ouvertes.fr/hal-02928416
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Submitted on : Wednesday, September 2, 2020 - 3:04:51 PM
Last modification on : Thursday, September 10, 2020 - 3:07:26 AM

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  • HAL Id : hal-02928416, version 1

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Gautier Cosne, Guillaume Maze, Pierre Tandeo. Coupling Oceanic Observation Systems to Study Mesoscale Ocean Dynamics. NeurIPS 2019 : 33rd Conference on Neural Information Processing Systems, Dec 2019, Vancouver, Canada. ⟨hal-02928416⟩

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