IndexRundeck: P1SoM40Created: Mon May 20 03:30:15 EDT 2024

BIOPHYSICS

File: canopyspitters.f
Summary: Call photosynthesis/conductance routines from other module.
Author :
Version:

Subroutines:
allocate_npp_to_labile
the biophysics and prescribed LAI.
calc_ci_canopy
##### routines. (NK)
canopy_rad
Calculate PAR on sunlit and shaded foliage in layer Lc
canopy_rad_setup
solar zenith angle, and other canopy radiation parameters.
canopy_transmittance

canopyfluxes
If PAR is not directly available, the following conversions may be used:
gs_bound

gs_from_ci

optcurve
Optimum curve, where OptCurveResult=x at 15 Celsius.
photosynth_cond

photosynth_sunshd

qsat
QSAT calculates saturation vapour mixing ratio
qsimp

resp_can_growth

resp_can_maint

resp_root
Frootresp = fine root respiration (kgC/s/m2)
respiration_autotrophic

trapzd

water_stress

water_stress2


Global Variables:
pscondleaf : used from photcondmod

cimin : used from photcondmod

iparminmol : real*8, parameter
Initial Value = 50
o2frac : real*8, parameter
Initial Value = .20900
sigma : real*8
Leaf scattering coefficient (?unitless).
kdf : real*8
Canopy extinction coeff. for diffuse radiation (unitless).
sqrtexpr : real*8

rhor : real*8
Canopy reflectivity (?unitless).
kbl : real*8
Canopy extinction coeff. for black leaves (unitless).
pft : integer

canalbedo : real*8

lai : real*8

coszen : real*8

i0df : real*8

i0dr : real*8

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