Q1. How do we determine/distinguish the distributions of different objects from the different instruments?

And how does the certainty vary with object size?

Further to George’s comment (http://wp.me/p7ffKH-B). I think Sünnje and Klas have compared the LOPC and VPR data to distinguish marine snow and zooplankton, and it was pretty problematic. I think George’s idea to analyze and interpret the same data set using different view points is great: 1. ‘particle objects’ are zooplankton, 2. ‘particle objects’ are marine snow.

Just for fun, I’ve attached a couple of photos taken with a camera (particles from the MSC) and the VPR (courtesy of Klas!) . These highlight nicely the diversity we should expect.

Marine snow_small copy

vpr3