The University of Southampton
University of Southampton Institutional Repository

Passive acoustic quantification of gas fluxes during controlled gas release experiments

Record type: Article

The detection and quantification of an underwater gas release are becoming increasingly important for oceanographic and industrial applications. Whilst the detection of each individual bubble injection events, with commensurate sizing from the natural frequency of the acoustic emission, has been common for decades in laboratory applications, it is impractical to do this when hundreds of bubbles are released simultaneously, as can occur with large methane seeps, or leaks from gas pipelines or undersea facilities for carbon capture and storage. This paper draws on data from two experimental studies and demonstrates the usefulness of passive acoustics to monitor gas leaks of this level. It firstly shows experimental validation tests of a recent model aimed at inverting the acoustic emissions of gas releases in a water tank. Different gas flow rates for two different nozzle types are estimated using this acoustic inversion and compared to measurements from a mass flow meter. The estimates are found to predict accurately volumes of released gas. Secondly, this paper demonstrates the use of this method at sea in the framework of the QICS project (controlled release of CO2 gas). The results in the form of gas flow rate estimates from bubbles are presented. These track, with good agreement, the injected gas and correlate within an order of magnitude with diver measurements. Data also suggest correlation with tidal effects with a decrease of 15.1 kg /d gas flow for every 1 m increase in tidal height (equivalent to 5.9 L/min when converted to standard ambient temperature [25 °C] and absolute pressure [100 kPa] conditions, SATP

PDF Berges et al. 2015.pdf - Accepted Manuscript
Download (10MB)


Berges, B.J.P., Leighton, T.G. and White, P.R. (2015) Passive acoustic quantification of gas fluxes during controlled gas release experiments International Journal of Greenhouse Gas Control, pp. 1-71. (doi:10.1016/j.ijggc.2015.02.008).

More information

e-pub ahead of print date: 1 March 2015
Organisations: Acoustics Group


Local EPrints ID: 375114
ISSN: 1750-5836
PURE UUID: 66edcaba-352e-4084-ac59-998431cd1737
ORCID for T.G. Leighton: ORCID iD
ORCID for P.R. White: ORCID iD

Catalogue record

Date deposited: 12 Mar 2015 13:31
Last modified: 17 Jul 2017 21:20

Export record



Author: B.J.P. Berges
Author: T.G. Leighton ORCID iD
Author: P.R. White ORCID iD

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.