PAR summation
| Spectral data can be integrated over the 400 to 700 nm waveband to compute the Photosynthetically Active Radiation (PAR) using the formula: |
| 1/(B*h*c) * 400 ∫ 700 λ * E(λ) dλ, where |
| B = Avogadro's number = 6.0221413e17 photons/µmole |
| h = Planck's constant = 6.62606957e-34 watt s2 |
| c = speed of light = 299792458e9 nm/s |
| λ = Spectroradiometer wavelength (nm) |
| E(λ) = Measured Spectral Irradiance at λ (W/m2/nm) |
[MIDC]