Improve conversion between projected cover and LAI

rcnijzink / VOM

Vegetation Optimality Model

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Improve conversion between projected cover and LAI #12

Open rcnijzink opened 5 years ago

rcnijzink commented 5 years ago

Add in the cost function for foliage cover this:

LAI = 2*log(1/(1-M_A))

This is based on Choudhurry et al. (1987), but also before by Monsi and Saeki (1953). It starts from the Beer-Lambert law, which expresses the attenuation of the radiation in a homogenous turbid medium (here the canopy).

Use a switch to change between this, and the original formulation (LAI = 2.5*M_A into)

rcnijzink commented 5 years ago

See https://git.list.lu/wave/vom_natt/issues/15#note_12909

rcnijzink commented 5 years ago

Notes:

Varying lai from day to day leads to 9 options for the grasses (3 times pcg and 3 times lai). This works through on multiple occassions
Check for respiration if correct