©2020 Biological and Chemical Oceanography Data Management Office.Funded by the U.S. National Science Foundation
©2020 Biological and Chemical Oceanography Data Management Office.A self-contained unit which measures the scattering of LASER light at a number of angles. This primary measurement is mathematically inverted to give a grain size distribution, and also scaled to obtain the volume scattering function. The size distribution is presented as concentration in each of the grain-size class bins. Optical transmission, water depth and temperature are recorded as supporting measurements.
The Sequoia LISST 100-X series instruments are available in two range sizes: 1.25-250 microns (Type B) and 2.5-500 microns (Type C).
| Dataset Name | PI-Supplied Description | PI-Supplied Name |
|---|---|---|
| Laser In Situ Scatterometer and Transmissometer-based Particle Size Distributions (LISST PSDs) from sinking materials collected from sediment traps at Station ALOHA in June 2019 onboard R/V Kilo Moana cruise KM1910 | Particle Size Distribution measurements were made using the Laser In Situ Scatterometer and Transmissometer 100X (Type B, Sequoia Scientific Inc.). The LISST uses laser diffraction in an approximately 100 ml sample volume to estimate the PSD via inversion into 32 logarithmically spaced particle size classes. | Laser In Situ Scatterometer and Transmissometer 100X (LISST Type B, Sequoia Scientific Inc.) |
| Laser In Situ Scatterometer and Transmissometer-based Particle Size Distributions (LISST PSDs) from suspended materials in bottle samples collected at Station ALOHA in June 2019 onboard R/V Kilo Moana cruise KM1910 | Particle Size Distribution measurements were made using the Laser In Situ Scatterometer and Transmissometer 100X (Type B, Sequoia Scientific Inc.). The LISST uses laser diffraction in an approximately 100 ml sample volume to estimate the PSD via inversion into 32 logarithmically spaced particle size classes. | Laser In Situ Scatterometer and Transmissometer 100X (LISST Type B, Sequoia Scientific Inc.) |
| Results from growth rate experiment with the diatom Thalassiosira wessiflogii in semi-continuous culture; conducted at the Thornton lab, TAMU from 2007-2012 (Diatom EPS Production project) | The particle size distribution (PSD) and volume concentration of particles in the T. weissiflogii cultures was measured using laser scattering following the method of Rzadkowolski and Thornton (2012) using a Laser In Situ Scattering and Transmissometry instrument (LISST-100X, Type C; Sequoia Scientific). | LISST-100X Type C Sequoia Scientific |