Concept
Chelsea Technologies Group 2-pi PAR irradiance sensor
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL0050/1/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | CTG 2-pi PAR | |
| Definition | A submersible irradiance sensor designed by Plymouth marine Laboratory and developed commercially by CTG. The collector is designed to measure the amount of light available for photosynthesis over a hemisphere. Sensors are often paired, one facing up the other down, to determine total PAR. Relative Spectral Sensitivity flat to + 3% from 450-700nm, down 8% of 400nm and 36% at 350nm. Casings on commercial instruments are rated to 1000m depth, but operationally deployed prototype instruments from PML were only rated to 500m. | |
| Date | None | |
| Identifier | TOOL0050 | |
| Note | accepted | |
| Is Version Of | TOOL0050 | |
| version | 1 | |
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