compute.PARz | R Documentation |
Compute PAR at depth from surface irradiance (Ed0+) and profile of downwelling irradiance (EdZ)
compute.PARz(
Depth,
waves,
Edz,
Ed.0,
f.PAR = c(0.001, 0.01, 0.1, 0.5),
z.fixed = c(5, 10, 20, 30, 40)
)
Depth |
is a vector of depth corresponding to the EdZ measurements |
waves |
is a vector of wavelength of EdZ and Ed0+ |
Edz |
is a matrix of EdZ (col=waves; row=Depth) after nomalization to Ed.0 variation |
Ed.0 |
is a is a vector surface irradiance |
f.PAR |
is a vector of numeric values corresponting to light fraction. The depth (in m) of each light fraction will be computed. Default is f.PAR=c(0.001, 0.01, 0.1,0.5) |
z.fixed |
is a vector of numeric values corresponting to depth at which light fraction will be calculated. Default is z.fixed=c(5,10,20,30,40) |
The program will return three vectors for
the depth of each PAR fraction requested (z.f.PAR);
the fraction of PAR at the depth requested (PAR.at.z);
the vector of PAR at all depth Z (PAR.z) in micro mol photon / m^2
Simon Belanger
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