Revealing recent measurements with Sequoia Scientific’s Hyper-a and Sea-Bird Scientific’s ac-s during a period of strong Noctiluca scintillans bioluminescence; the Hyper-a provides much higher spectral resolution, exhibiting narrow spectral features missed by the ac-s, and extending into the Ultraviolet range.
Both instruments capture the main absorption envelope, confirming consistent total pigment absorption and show overall shape agreement. However, the Hyper-a has a spectral resolution advantage: Its dual-spectrometer, hyperspectral system (~2 nm resolution) detects narrow pigment features that the ac-s (with ~4–10 nm spacing) does not resolve. Learn more about the innovative Hyper-a and produced datasets clicking here!
Comparison of hyperspectral absorption measurements and their second derivatives