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arXiv · 1910.08573

Coupling Oceanic Observation Systems to Study Mesoscale Ocean Dynamics

Gautier Cosne·Guillaume Maze·Pierre Tandeo
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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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Gautier Cosne, Guillaume Maze, Pierre Tandeo. 2019-10-18. Coupling Oceanic Observation Systems to Study Mesoscale Ocean Dynamics. https://arxiv.org/abs/1910.08573

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