Articles | Volume 25, issue 1
Nonlin. Processes Geophys., 25, 89–97, 2018
https://doi.org/10.5194/npg-25-89-2018
Nonlin. Processes Geophys., 25, 89–97, 2018
https://doi.org/10.5194/npg-25-89-2018

Research article 07 Feb 2018

Research article | 07 Feb 2018

Tipping point analysis of ocean acoustic noise

Valerie N. Livina et al.

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Latest update: 26 Oct 2021
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Short summary
We have applied tipping point analysis to a large record of ocean acoustic data to identify the main components of the acoustic dynamical system: long-term and seasonal trends, system states and fluctuations. We reconstructed a one-dimensional stochastic model equation to approximate the acoustic dynamical system. We have found a signature of El Niño events in the deep ocean acoustic data near the southwest Australian coast, which proves the investigative power of the tipping point methodology.