Photosynthetically Active Radiation - PAR
PAR measures irradiance--or the amount of sunlight or ambient light that diffuses through water compared to surface light. PAR focuses on the dynamics of the photic zone, typically 1-5 meters below the surface, and leads to an understanding of photosynthesis, toxic algae blooms, and eutrophication (nutrient loading).
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Scientists studying phytoplankton and photosynthesis and measuring chlorophyll need to measure PAR in order to resolve the absorption rate. High levels of PAR can indicate photoinhibition (limiting photosynthesis in shallow waters), which affects submerged aquatic vegetation and certain aquatic species.
YSI measures PAR using a single or dual Li-Cor sensor attached to a YSI 6600 water quality sonde for continuous field monitoring.
Specification Sheets
YSI Photosynthetically Active Radiation (PAR) Sensor
Catalogs & Brochures
Aquaculture Monitoring & Control
Application Notes
Pontoon-Mounted Autonomous Monitoring System Keeps Constant Watch on Harmful Algal Blooms
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Make the most of your environmental monitoring.
The 6600 V2 sonde is the most comprehensive water quality monitoring equipment available with simultaneous measurement of conductivity (salinity), temperature, depth or level, pH/ORP. |
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