Articles | Volume 28, issue 2
Nonlin. Processes Geophys., 28, 181–212, 2021
https://doi.org/10.5194/npg-28-181-2021
Nonlin. Processes Geophys., 28, 181–212, 2021
https://doi.org/10.5194/npg-28-181-2021

Research article 20 Apr 2021

Research article | 20 Apr 2021

Extracting statistically significant eddy signals from large Lagrangian datasets using wavelet ridge analysis, with application to the Gulf of Mexico

Jonathan M. Lilly and Paula Pérez-Brunius

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Long-lived eddies are an important part of the ocean circulation. Here a dataset for studying eddies in the Gulf of Mexico is created through the analysis of trajectories of drifting instruments. The method involves the identification of quasi-periodic signals, characteristic of particles trapped in eddies, from the displacement records, followed by the creation of a measure of statistical significance. It is expected that this dataset will be of use to other authors studying this region.