In the Beginning… In the 1960’s oceanographers started suggesting that sinking particles were a main source of food and nutrient delivery to deep-sea organisms. Researchers soon conceived and deployed sediment traps to investigate further (Wiebe...
Understanding particle behavior in the aquatic environment is fundamental to unraveling key processes in biogeochemistry, sediment transport, and ecosystem dynamics. Since 1995, Sequoia’s LISST and Hyper instruments have become important tools for quantifying...
When designing a transmissometer or a laser diffraction-based sensor for particle size analysis, an important consideration is the beam acceptance angle. A transmissometer will measure a – generally small – portion of the forward scattered...
…Wherein we’ll learn about the LISST-Tau and some of the ongoing developments at Sequoia. (Part XIII can be found here https://www.sequoiasci.com/article/the-history-of-sequoia-part-xiii/ ) In the fall of 2019 Sequoia got the opportunity to develop...
Sequoia’s LISST-Holo2 captures holograms of suspended particles. Upon processing, particle size, distribution, concentration and images of all particles in the beam are recovered. The LISST-Holo2 has traditionally been used for suspended particles in...