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Convert spectral energy irradiance [W m-2 nm-1] into spectral photon irradiance expressed as number of photons [s-1 m-2 nm-1]
as_quantum(w.length, s.e.irrad)
A numeric vector of spectral photon irradiances.
numeric vector of wavelengths (nm).
numeric vector of spectral (energy) irradiance values.
Other quantity conversion functions: A2T(), Afr2T(), T2A(), T2Afr(), any2T(), e2q(), e2qmol_multipliers(), e2quantum_multipliers(), q2e()
A2T()
Afr2T()
T2A()
T2Afr()
any2T()
e2q()
e2qmol_multipliers()
e2quantum_multipliers()
q2e()
with(sun.data, as_quantum(w.length, s.e.irrad))
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