A novel high-resolution optical instrument for imaging oceanic bubbles

Al-Lashi, R.S. ORCID: 0000-0002-7775-8181, Gunn, S.R., Webb, E.G. and Czerski, H., 2018. A novel high-resolution optical instrument for imaging oceanic bubbles. IEEE Journal of Oceanic Engineering, 43 (1), pp. 72-82. ISSN 0364-9059

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Abstract

The formation of bubbles from breaking waves has a significant effect on air-sea gas transfer and aerosol production. Detailed data in situ about the bubble populations are required to understand these processes. However, these data are difficult to acquire because bubble populations are complex, spatially inhomogeneous, and short lived. This paper describes the design and development of a novel high-resolution underwater optical instrument for imaging oceanic bubbles at the sea. The instrument was successfully deployed in 2013 as part of the HiWINGS campaign in the North Atlantic Ocean. It contains a high-resolution machine vision camera, strobe flash unit to create a light sheet, and single board computer to control system operation. The instrument is shown to successfully detect bubbles of radii in the range 20-10 000 μm.

Item Type: Journal article
Publication Title: IEEE Journal of Oceanic Engineering
Creators: Al-Lashi, R.S., Gunn, S.R., Webb, E.G. and Czerski, H.
Publisher: IEEE Oceanic Engineering Society
Date: January 2018
Volume: 43
Number: 1
ISSN: 0364-9059
Identifiers:
NumberType
10.1109/JOE.2017.2660099DOI
Divisions: Schools > School of Science and Technology
Depositing User: Linda Sullivan
Date Added: 12 Mar 2018 10:51
Last Modified: 12 Mar 2018 10:51
URI: http://irep.ntu.ac.uk/id/eprint/32910

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