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LISSTs and Primary Productivity

April 16, 2025

Primary Producers are the organisms that in general convert inorganic materials (e.g., phosphate) into organic matter (e.g. lipids) through photosynthesis. In the aquatic realm, the dominant primary producers are the phytoplankton[1]. Primary Production...

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Are all bubbles spherical?

October 24, 2022

Bubbles in water are studied intensively. For modeling and measurement purposes it is sometimes assumed that bubbles are spherical, but this is only true up to a certain size: When the hydrostatic pressure difference from top to bottom of the bubble is...

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LISSTs in Dredging Applications

October 28, 2021

Since 1995, Sequoia Scientific, Inc. has been the global leader in technologies for submersible and field measurements of particles and particle size distributions. This article shows a few examples where our instruments have been used for various dredging...

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How LISST-VSF Works

January 4, 2017

The LISST-VSF is the first autonomous VSF instrument for use in the sea. It measures the Volume Scattering Function, the beam attenuation and scattering coefficients (c and b), and depolarization via the elements P12 and P22 of the scattering Mueller...

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LISST-200X: Smarter not just smaller

May 19, 2016

Upon first impressions the LISST-200X appears to be just a smaller version of the LISST-100X. However much of what makes the LISST-200X such an improvement over the LISST-100X is what lies deep inside the instrument.  Let’s explore these features in...

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