Influence of bubbles on scattering of light in the ocean

Xiaodong Zhang, Marlon Lewis, Bruce Johnson
1998 Applied Optics  
The scattering and backscattering properties of bubble populations in the upper ocean are estimated with Mie theory and a generalized bubble size spectrum based on in situ observations. Optical properties of both clean bubbles and bubbles coated with an organic film are analyzed; the results are compared with the corresponding optical properties of micro-organisms of similar size. Given a bubble number density ͑from ϳ10 5 to ϳ10 7 m Ϫ3 ͒ frequently found at sea, the bubble populations
more » ... pulations significantly influence the scattering process in the ocean, especially in oligotrophic waters. Bubbles appear to make a large contribution to the missing terms in constructing the observed total backscattering coefficient of the ocean. This contribution to backscattering is strongly enhanced if the bubbles are coated with organic film. The injection of bubbles will shift ocean color toward the green, resembling phytoplankton blooms, and hence introducing error in ocean color remote sensing if its effect is not corrected.
doi:10.1364/ao.37.006525 pmid:18286161 fatcat:42tj75g5obgkzlbsci2pltjoqq