Daily Light Photoperiod [2.0]
Updated
by
Travis Bates
IN THIS ARTICLE
Daily Light Photoperiod uses measured PAR (Photosynthetically Active Radiation) or PYR (Solar Radiation) to calculate an accumulated daily photoperiod. The time period resets daily at midnight. Photoperiod is the total amount of time (hrs) in a 24 hour period that an organism receives light and can be calculated from either a QSO-S PAR Photon Flux sensor or a Pyranometer solar radiation sensor.
Quantum and pyranometer sensors can report non-zero PPFD or solar radiation values even when no light is present. A non-zero threshold is used to filter out values from the total photoperiod. The thresholds are >5 μmol m-2 s-1 for PPFD from the QSO-S quantum sensor and >2 W m-2 solar radiation from the pyranometer sensor.
Support
Daily light photoperiod can be calculated from any light sensor.
Recommended sensors
- ATMOS 41 Photon flux density
- ATMOS 41W
- PAR SQ-521
- PYR SP-110 Pyranometer
New Daily Light Photoperiod
- On the Data page, select New Data.
- Select Daily Light Photoperiod as the type.
- Select one or more light sources.
- Edit the data stream color.
- Edit the data stream name.
- Select Create to finish.
- The new data stream(s) will now be in your data list.
