A Novel High-Resolution Optical Instrument for Imaging Oceanic Bubbles

作者：Al Lashi Raied Sarmad^*; Gunn Steve R; Webb Eric G; Czerski Helen

来源：IEEE Journal of Oceanic Engineering, 2018, 43(1): 72-82.

DOI：10.1109/JOE.2017.2660099

• High-resolution oceanic bubble image
• imaging oceanic bubbles
• oceanic bubble optical instrument
• oceanic bubble size distribution

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 mu m.

• 出版日期2018-1