Paper

Coupling Oceanic Observation Systems to Study Mesoscale Ocean Dynamics

Tandeo, Pierre, Gautier Cosne, Maze, Guillaume

2019

Overview

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.

• Publisher: Cornell University Library, arXiv.org
• Subject: Anomalies / Climate models / Ocean currents / Ocean dynamics / Ocean models / Ocean temperature / Sea level / Sea surface temperature / Temperature