Group var3din_inputs
Compute integral of incremental fractional foliage shape function from GEDI PAVD. More...
Public Attributes
Type | Name |
---|---|
real(rk), intent(in) | above |
real(rk), intent(in) | area |
real(rk), intent(in) | associated |
real(rk), intent(in) | below |
real(rk), intent(in) | canopy |
real(rk), intent(in) | cell |
real(rk), dimension(nondimensional), intent(in) | density |
real(rk), intent(in) | deviation |
real(rk), intent(in) | fch |
real(rk), intent(out), allocatable | foliage |
real(rk), intent(in) | from |
real(rk), intent(out), allocatable | function |
real(rk), intent(in) | gedi |
real(rk), intent(in) | grid |
real(rk), dimension(dimensionless), intent(in) | h |
real(rk), dimension(m), intent(in) | height |
real(rk), intent(in) | heights |
real(rk), intent(in) | input |
real(rk), intent(in) | level |
real(rk), intent(in) | maximum |
real(rk), intent(in) | mid |
real(rk), intent(out) | of |
real(rk), dimension(m), intent(in) | pavd |
real(rk), dimension(:), intent(in) | pavd_in |
real(rk), dimension(:), intent(in) | pavd_levs |
real(rk), intent(in) | plant |
real(rk), dimension(m²/m³), intent(in) | profile |
real(rk), intent(out), allocatable | shape |
real(rk), intent(in) | sigma1 |
real(rk), intent(in) | sigmau |
real(rk), intent(in) | standard |
real(rk), intent(in) | volume |
real(rk), intent(in) | with |
real(rk), intent(in) | z |
real(rk), dimension(z/h), intent(in) | zcanmax |
real(rk), intent(in) | zcanmax_in |
real(rk), dimension(:), intent(in) | zhc |
Detailed Description
This subroutine converts interpolated GEDI 3D PAVD (Plant Area Volume Density) profiles into fractional foliage shape functions using the algorithms from Massman et al. (2017). The process includes: * Interpolating input PAVD data to the canopy model vertical resolution * Determining the height of maximum foliage area density (ZCANMAX) from observed PAVD * Calculating incremental foliage shape functions using Gaussian distributions * Computing fractional cumulative foliage distributions * Integrating the foliage shape functions for canopy structure parameterization
Parameters:
ZCANMAX_IN
Input height of maximum foliage area density (z/h) (nondimensional)SIGMAU
Standard deviation of shape function above zcanmax (z/h)SIGMA1
Standard deviation of shape function below zcanmax (z/h)FCH
Grid cell canopy height (m) from GEDIZHC
Dimensionless height coordinate (z/h)PAVD_IN
Plant Area Volume Density profile (m²/m³)PAVD_LEVS
Associated mid-level heights for PAVD data (m)FAFRACZINT
Integral of incremental fractional foliage shape function