Fluorometric CDOM Concentration is a measure of how much light has been re-emitted (fluoresced) from colored organic compounds found in the colored dissolved organic matter (CDOM) in seawater. Examples of CDOM include tannins (polyphenols that bind to proteins and other large molecules) or lignins (polymers of phenolic acids) from decaying plant material and byproducts from the decomposition of animals. It accounts for the tea-like color in seawater. CDOM is not particulate, but seawater can contain both CDOM and turbidity.
Fluorometric Chlorophyll-a Concentration is an estimate of phytoplankton biomass using fluorescence. The fluorometer emits light at a specific wavelength that is absorbed by chlorophyll and re-emitted as light at a different wavelength. By measuring the intensity of the re-emitted wavelength of light the chlorophyll-a concentration in the surrounding seawater can be estimated. Chlorophyll-a concentrations can be used as a proxy for phytoplankton biomass as it is a dominant photosynthetic pigment.
Optical Backscatter (Red Wavelengths) is a measure of the amount of red light (630-740 nm wavelengths) scattered in the backward direction due to suspended matter within seawater, providing a proxy for turbidity and suspended solids.
Seawater Pressure refers to the pressure exerted on a sensor in situ by the weight of the column of seawater above it. It is calculated by subtracting one standard atmosphere from the absolute pressure at the sensor to remove the weight of the atmosphere on top of the water column. The pressure reported is the CTD pressure recorded at the time of the sensor reading.
Total Volume Scattering Coefficient values represent the volume scattering from particles and the molecular scattering from water at a given wavelength of light and the default angle of 117 degrees for the ECO meter.
Total Volume Scattering Coefficient
Unidata Dataset Discovery v1.0
This netCDF product is a copy of the data on the University of Washington AWS Cloud Infrastructure.
University of Washington Cabled Array Value Add Team.
Some of the metadata of this dataset has been modified to be CF-1.6 compliant.
Ocean Observatories Initiative
2020-08-11T06:10:19.631832 generated from Stream Engine