Two-Year Optical Site Characterization for the Pacific Ocean Neutrino Experiment P-ONE in the Cascadia Basin

Understand

The STRings for Absorption length in Water (STRAW) are the first in a series of pathfinders for the Pacific Ocean Neutrino Experiment (P-ONE), a future large-scale neutrino telescope in the north-eastern Pacific Ocean.

• STRAW consists of two 150 m long mooring lines instrumented with optical emitters and detectors.
• The pathfinder is designed to measure the attenuation length of the water and perform a long-term assessment of the optical background at the future P-ONE site.
• After two years of continuous operation, measurements from STRAW show an optical attenuation length of about 28 metres at 450 nm.