Convert spectral energy irradiance into spectral photon irradiance
Source:R/as.quantum.r
as_quantum.RdConvert spectral energy irradiance [W m-2 nm-1] into spectral photon irradiance expressed as number of photons [s-1 m-2 nm-1]
See also
Other quantity conversion functions:
A2T(),
Afr2T(),
T2A(),
T2Afr(),
any2T(),
e2q(),
e2qmol_multipliers(),
e2quantum_multipliers(),
q2e()
Examples
with(sun.data, as_quantum(w.length, s.e.irrad))
#> [1] 3.849246e+12 9.090939e+12 3.231760e+13 1.010305e+14 2.292772e+14
#> [6] 5.505127e+14 1.180895e+15 1.909774e+15 3.975639e+15 5.963515e+15
#> [11] 1.368858e+16 1.783750e+16 2.762390e+16 3.198208e+16 4.727849e+16
#> [16] 6.198705e+16 6.477134e+16 7.601940e+16 1.229436e+17 1.262286e+17
#> [21] 1.485699e+17 1.666271e+17 1.788566e+17 1.623531e+17 2.374078e+17
#> [26] 2.263471e+17 2.520742e+17 2.805721e+17 2.944314e+17 2.897050e+17
#> [31] 2.732580e+17 3.385265e+17 3.547128e+17 4.553155e+17 4.693349e+17
#> [36] 4.373297e+17 4.966595e+17 5.474162e+17 4.824767e+17 5.015181e+17
#> [41] 4.947781e+17 4.938193e+17 5.277262e+17 4.587981e+17 4.427468e+17
#> [46] 4.942386e+17 5.304695e+17 5.737886e+17 5.241375e+17 5.547128e+17
#> [51] 5.836343e+17 4.633915e+17 5.315001e+17 5.314776e+17 5.603715e+17
#> [56] 5.353789e+17 5.238546e+17 6.084989e+17 6.035221e+17 5.730939e+17
#> [61] 5.873211e+17 6.698160e+17 6.679577e+17 6.167953e+17 5.072051e+17
#> [66] 4.586466e+17 5.271642e+17 6.718253e+17 5.582266e+17 5.913835e+17
#> [71] 6.593963e+17 6.745595e+17 6.728366e+17 8.276263e+17 7.934511e+17
#> [76] 7.374318e+17 7.742420e+17 8.182937e+17 7.644049e+17 7.094383e+17
#> [81] 6.716320e+17 6.137904e+17 6.394738e+17 7.469557e+17 7.951478e+17
#> [86] 9.456849e+17 7.882610e+17 7.607378e+17 8.366521e+17 6.211287e+17
#> [91] 5.040564e+17 5.802270e+17 7.588663e+17 6.892056e+17 7.302674e+17
#> [96] 7.140162e+17 7.761845e+17 8.904368e+17 9.491539e+17 8.628262e+17
#> [101] 4.791749e+17 5.903600e+17 9.345612e+17 8.082693e+17 5.079954e+17
#> [106] 1.008931e+18 1.177286e+18 1.224508e+18 1.264046e+18 1.314886e+18
#> [111] 1.259303e+18 1.295619e+18 1.277072e+18 1.225583e+18 1.219338e+18
#> [116] 1.284975e+18 1.362085e+18 1.156969e+18 1.346340e+18 1.398432e+18
#> [121] 1.342336e+18 1.382301e+18 1.352648e+18 1.416055e+18 1.353267e+18
#> [126] 1.332995e+18 1.359661e+18 1.266148e+18 1.420242e+18 1.416628e+18
#> [131] 1.302827e+18 1.286426e+18 1.296947e+18 1.370115e+18 1.279989e+18
#> [136] 1.277183e+18 1.183464e+18 9.893345e+17 8.975849e+17 1.405867e+18
#> [141] 1.422922e+18 1.376064e+18 1.451180e+18 1.610293e+18 1.598607e+18
#> [146] 1.422897e+18 1.332285e+18 1.425687e+18 1.495036e+18 1.599516e+18
#> [151] 1.573486e+18 1.579657e+18 1.560711e+18 1.493521e+18 1.658842e+18
#> [156] 1.735687e+18 1.682650e+18 1.755996e+18 1.862769e+18 1.751991e+18
#> [161] 1.590087e+18 1.673808e+18 1.753124e+18 1.777050e+18 1.837007e+18
#> [166] 1.756515e+18 1.777878e+18 1.782045e+18 1.789577e+18 1.770438e+18
#> [171] 1.773425e+18 1.777490e+18 1.744784e+18 1.778460e+18 1.746717e+18
#> [176] 1.805922e+18 1.809431e+18 1.769902e+18 1.760297e+18 1.828021e+18
#> [181] 1.789411e+18 1.778855e+18 1.847119e+18 1.841196e+18 1.834720e+18
#> [186] 1.893710e+18 1.817422e+18 1.864203e+18 1.849949e+18 1.900575e+18
#> [191] 1.879629e+18 1.825590e+18 1.790131e+18 1.597378e+18 1.596407e+18
#> [196] 1.759940e+18 1.729796e+18 1.906306e+18 1.818232e+18 1.708143e+18
#> [201] 1.832099e+18 1.823612e+18 1.968559e+18 1.897723e+18 1.884919e+18
#> [206] 1.785636e+18 1.821261e+18 1.822597e+18 1.788168e+18 1.747835e+18
#> [211] 1.848800e+18 1.841163e+18 1.874092e+18 1.961835e+18 1.879413e+18
#> [216] 1.793534e+18 1.913205e+18 1.906890e+18 1.899725e+18 1.935904e+18
#> [221] 1.840310e+18 1.812317e+18 1.797455e+18 1.896961e+18 1.607559e+18
#> [226] 1.681854e+18 1.665587e+18 1.828031e+18 1.875494e+18 1.918992e+18
#> [231] 1.831684e+18 1.942243e+18 1.949435e+18 1.833867e+18 1.722333e+18
#> [236] 1.917421e+18 1.948031e+18 1.949201e+18 2.032449e+18 1.940674e+18
#> [241] 1.733463e+18 1.808439e+18 1.908103e+18 2.004624e+18 1.934975e+18
#> [246] 1.993916e+18 1.959542e+18 1.836648e+18 1.820426e+18 1.936498e+18
#> [251] 1.960990e+18 1.984896e+18 1.995269e+18 1.922127e+18 1.960335e+18
#> [256] 1.913587e+18 1.940374e+18 1.951024e+18 1.950371e+18 1.994886e+18
#> [261] 1.926635e+18 1.972353e+18 1.988611e+18 1.958652e+18 1.927754e+18
#> [266] 1.942985e+18 1.903850e+18 1.925441e+18 1.969224e+18 1.888882e+18
#> [271] 1.981562e+18 1.958397e+18 1.965480e+18 1.852508e+18 1.910723e+18
#> [276] 1.930342e+18 1.864167e+18 1.870132e+18 1.852225e+18 1.893321e+18
#> [281] 1.936510e+18 1.922341e+18 1.892790e+18 1.911391e+18 1.929956e+18
#> [286] 1.912717e+18 1.887111e+18 1.939093e+18 1.960005e+18 2.008046e+18
#> [291] 2.007459e+18 1.997330e+18 1.981363e+18 1.923565e+18 1.936585e+18
#> [296] 1.866213e+18 1.677876e+18 1.694235e+18 1.803426e+18 1.784033e+18
#> [301] 1.822961e+18 1.842454e+18 1.805649e+18 1.851224e+18 1.880240e+18
#> [306] 1.877971e+18 1.883868e+18 1.924875e+18 1.904808e+18 1.911024e+18
#> [311] 1.930724e+18 2.000153e+18 2.014485e+18 2.000338e+18 1.985944e+18
#> [316] 2.003216e+18 1.991039e+18 1.962250e+18 1.965874e+18 1.992847e+18
#> [321] 1.960077e+18 1.943039e+18 1.951847e+18 1.892782e+18 1.865940e+18
#> [326] 1.979886e+18 2.003210e+18 1.989284e+18 2.020798e+18 1.988239e+18
#> [331] 1.966829e+18 1.921207e+18 1.917448e+18 1.893450e+18 1.915671e+18
#> [336] 1.864226e+18 1.910366e+18 1.902806e+18 1.900689e+18 1.858588e+18
#> [341] 1.925045e+18 1.913107e+18 1.946516e+18 1.922643e+18 1.960558e+18
#> [346] 2.002058e+18 1.974092e+18 1.932360e+18 1.949315e+18 1.984039e+18
#> [351] 1.981924e+18 1.947139e+18 1.924095e+18 1.878820e+18 1.827500e+18
#> [356] 1.809623e+18 1.819757e+18 1.853227e+18 1.900498e+18 1.866335e+18
#> [361] 1.912921e+18 1.905308e+18 1.852352e+18 1.645563e+18 1.706644e+18
#> [366] 1.882005e+18 1.910950e+18 1.920417e+18 1.983492e+18 1.998012e+18
#> [371] 1.991899e+18 1.976701e+18 1.978103e+18 1.975984e+18 1.966489e+18
#> [376] 2.009969e+18 2.009675e+18 1.998589e+18 1.989836e+18 1.968075e+18
#> [381] 1.979950e+18 1.995042e+18 1.990451e+18 1.990928e+18 1.987635e+18
#> [386] 1.982782e+18 1.982037e+18 1.974893e+18 1.963062e+18 1.964049e+18
#> [391] 1.957800e+18 1.957854e+18 1.948428e+18 1.839891e+18 1.641419e+18
#> [396] 1.647175e+18 1.643734e+18 1.701736e+18 1.746930e+18 1.751977e+18
#> [401] 1.699287e+18 1.650942e+18 1.671742e+18 1.718725e+18 1.812214e+18
#> [406] 1.774733e+18 1.700946e+18 1.676668e+18 1.653032e+18 1.674510e+18
#> [411] 1.755238e+18 1.776756e+18 1.763980e+18 1.752697e+18 1.736501e+18
#> [416] 1.784198e+18 1.797628e+18 1.792698e+18 1.809074e+18 1.817477e+18
#> [421] 1.787607e+18 1.788781e+18 1.727081e+18 1.647236e+18 1.483260e+18
#> [426] 1.316054e+18 1.218520e+18 1.234038e+18 1.479618e+18 1.579355e+18
#> [431] 1.528634e+18 1.420317e+18 1.398820e+18 1.402536e+18 1.411219e+18
#> [436] 1.389698e+18 1.407708e+18 1.430596e+18 1.428868e+18 1.542469e+18
#> [441] 1.648101e+18 1.728019e+18 1.712791e+18 1.668280e+18 1.698410e+18
#> [446] 1.726533e+18 1.734347e+18 1.775476e+18 1.785168e+18 1.785449e+18
#> [451] 1.847532e+18 1.875018e+18 1.861627e+18 1.873448e+18 1.889919e+18
#> [456] 1.891483e+18 1.864615e+18 1.858499e+18 1.890364e+18 1.887505e+18
#> [461] 1.879202e+18 1.900744e+18 1.899600e+18 1.881593e+18 1.873756e+18
#> [466] 1.822696e+18 1.488741e+18 6.835059e+17 5.260723e+17 8.430632e+17
#> [471] 8.355080e+17 9.217836e+17 1.138447e+18 1.375498e+18 1.537509e+18
#> [476] 1.696587e+18 1.780245e+18 1.816655e+18 1.823702e+18 1.813366e+18
#> [481] 1.828738e+18 1.849535e+18 1.801788e+18 1.830360e+18 1.844829e+18
#> [486] 1.835764e+18 1.848307e+18 1.829945e+18 1.827409e+18 1.842376e+18
#> [491] 1.826826e+18 1.808913e+18 1.819344e+18 1.788984e+18 1.763263e+18
#> [496] 1.739540e+18 1.689704e+18 1.673234e+18 1.671647e+18 1.675415e+18
#> [501] 1.677283e+18 1.684095e+18 1.659663e+18 1.635167e+18 1.661530e+18
#> [506] 1.701809e+18 1.683657e+18 1.638728e+18