Measuring solar radiation
August 26, 2023
Serious geek alert! We are now about to discuss the many and varied ways in which solar radiation is measured and to explain the science behind photosynthetic photon flux (PPF), and the related concept of the daily light integral.
PPF is a measurement of the number of photons that strike a square meter of surface per second. The standard unit of measure for PPF is a micromole per square meter per second (µmol/m²/sec). A mole of photons is equivalent to…