| The LISST-Deep instrument obtainsin-situ measurements of particle sizedistribution, optical transmission, and the optical volume scattering function(VSF) at depths up to 3,000 meters. Using a red 670nm diode laser and a custom silicon detector, small-anglescattering from suspended particles is sensed at 32 specific log-spaced angleranges. This primary measurement ispost-processed to obtain sediment size distribution, volume concentration,optical transmission, and VSF. Optionally, SeaBird MicroCat 37-SIP CTD can beintegrated for high precision conductivity, temperature, and depth measurement. Two models are available: anodizedaluminum, and Titanium. Each can be ordered as Type-B (1.2-250 microns)or Type-C (2.5 to 500 microns). The instruments are rated to a depth of3,000m (Aluminum housing) or 6,000m (Titanium housing).
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