prospect5 {ccrtm}

PROSPECT model version 5 and 5B

Description

The PROSPECT5(b) leaf reflectance model. The model was implemented based on Jacquemoud and Ustin (2019), and is further described in detail in Feret et al (2008). PROSPECT models use the plate models developed in Allen (1969) and Stokes (1862). Set Cbrown to 0 for prospect version 5.

Usage

prospect5(param)

Arguments

param

A named vector of PROSPECT parameters (note: program ignores case):

• [1] = leaf structure parameter (N)

• [2] = chlorophyll a+b content in ug/cm2 (Cab)

• [3] = carotenoids content in ug/cm2 (Car)

• [4] = brown pigments content in arbitrary units (Cbrown)

• [5] = equivalent water thickness in g/cm2 (Cw)

• [6] = leaf dry matter content in g/cm2 - lma - (Cm)

Value

spectra matrix with leaf reflectance and transmission for wavelengths 400 to 2500nm:

• [1] = leaf reflectance (rho)

• [2] = leaf transmission (tau)

References

Jacquemoud, S., and Ustin, S. (2019). Leaf optical properties. Cambridge University Press.

Feret, J.B., Francois, C., Asner, G.P., Gitelson, A.A., Martin, R.E., Bidel, L.P.R., Ustin, S.L., le Maire, G., Jacquemoud, S. (2008), PROSPECT-4 and 5: Advances in the leaf optical properties model separating photosynthetic pigments. Remote Sens. Environ. 112, 3030-3043.

Allen W.A., Gausman H.W., Richardson A.J., Thomas J.R. (1969), Interaction of isotropic ligth with a compact plant leaf, Journal of the Optical Society of American, 59:1376-1379.

Stokes G.G. (1862), On the intensity of the light reflected from or transmitted through a pile of plates, Proceedings of the Royal Society of London, 11:545-556.