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.

Download

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Valerie N. Livina on behalf of the Authors (06 Dec 2017)  Author's response    Manuscript
ED: Publish as is (16 Dec 2017) by Stéphane Vannitsem

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by Valerie N. Livina on behalf of the Authors (02 Feb 2018)   Author's adjustment   Manuscript
EA: Adjustments approved (02 Feb 2018) by Stéphane Vannitsem
Download
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.