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_INInput height of maximum foliage area density (z/h) (nondimensional)SIGMAUStandard deviation of shape function above zcanmax (z/h)SIGMA1Standard deviation of shape function below zcanmax (z/h)FCHGrid cell canopy height (m) from GEDIZHCDimensionless height coordinate (z/h)PAVD_INPlant Area Volume Density profile (m²/m³)PAVD_LEVSAssociated mid-level heights for PAVD data (m)FAFRACZINTIntegral of incremental fractional foliage shape function