computeGEllip {RLeafAngle}

Compute the G value given lamda (the parameter of ellipsoidal function) and beam direction.

Description

Compute the G value given lamda (the parameter of ellipsoidal function) and beam direction.

Usage

computeGEllip(lambda, theta)

Arguments

lambda

The parameter of ellipsoidal function given leaf angle distribution mearuements.

theta

The zenith angle of beam direction.

Value

The G value.

Author(s)

Wei-Min Wang (wmwang AT gmail.com)

References

Wang, W. M., Li, Z. L., & Su, H. B. (2007). Comparison of leaf angle distribution functions: effects on extinction coefficient and fraction of sunlit foliage. Agricultural and Forest Meteorology, 143(1), 106-122.

Examples

computeGEllip(1.0, 30)