6.25. cable_pftparm.nml

This file sets the time and space-invariant parameters for plant functional types for the CABLE land surface model. It contains one namelist called CABLE_PFTPARM.

6.25.1. CABLE_PFTPARM namelist members

This namelist reads the values of parameters for each of the plant functional types (PFTs) if the CABLE land surface model is being used. These parameters are a function of PFT only. Every member must be given a value for every run. CABLE uses the same parameters for veg and non-veg surface types, unlike JULES, and therefore its arrays are of dimension (npft + nnvg).

CABLE_PFTPARM::a1gs_io

Type:

real(npft + nnvg)

Default:

MDI

Represents the sensitivity of stomatal conductance to the assimilation rate (unitless).

CABLE_PFTPARM::alpha_io

Type:

real(npft + nnvg)

Default:

MDI

Initial slope of J-Q response curve. Units: mol (electrons) mol^-1 (photons) (C3) mol (CO₂) mol^-1 (photons) (C4)

CABLE_PFTPARM::canst1_io

Type:

real(npft + nnvg)

Default:

MDI

Maximum intercepted water by canopy. (mm LAI^-1)

CABLE_PFTPARM::cfrd_io

Type:

real(npft + nnvg)

Default:

MDI

Ratio of day respiration to vcmax

CABLE_PFTPARM::clitt_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf litter (alters resistance to soil evaporation) (tC ha^-1)

CABLE_PFTPARM::conkc0_io

Type:

real(npft + nnvg)

Default:

MDI

Michaelis-menton constant for carboxylase (bar)

CABLE_PFTPARM::conko0_io

Type:

real(npft + nnvg)

Default:

MDI

Michaelis-menton constant for oxygenase (bar)

CABLE_PFTPARM::convex_io

Type:

real(npft + nnvg)

Default:

MDI

Convexity of J-Q response curve (unitless).

CABLE_PFTPARM::cplant1_io

Type:

real(npft + nnvg)

Default:

MDI

Plant carbon in 1st vegetation carbon store (g C m^-2)

CABLE_PFTPARM::cplant2_io

Type:

real(npft + nnvg)

Default:

MDI

Plant carbon in 2nd vegetation carbon store (g C m^-2)

CABLE_PFTPARM::cplant3_io

Type:

real(npft + nnvg)

Default:

MDI

Plant carbon in 3rd vegetation carbon store (g C m^-2)

CABLE_PFTPARM::csoil1_io

Type:

real(npft + nnvg)

Default:

MDI

Soil carbon in 1st soil carbon store (g C m^-2)

CABLE_PFTPARM::csoil2_io

Type:

real(npft + nnvg)

Default:

MDI

Soil carbon in 2nd soil carbon store (g C m^-2)

CABLE_PFTPARM::d0gs_io

Type:

real(npft + nnvg)

Default:

MDI

d0 in stomatal conductance model (kPa)

CABLE_PFTPARM::ejmax_io

Type:

real(npft + nnvg)

Default:

MDI

Maximum potential electron transport rate top leaf, currently double the assigned value of vcmax. (mol m^-2 s^-1)

CABLE_PFTPARM::ekc_io

Type:

real(npft + nnvg)

Default:

MDI

Activation energy for carboxylase (J mol^-1)

CABLE_PFTPARM::eko_io

Type:

real(npft + nnvg)

Default:

MDI

Activation energy for oxygenase (J mol^-1)

CABLE_PFTPARM::extkn_io

Type:

real(npft + nnvg)

Default:

MDI

Extinction coefficient for vertical profile of N.

CABLE_PFTPARM::frac4_io

Type:

real(npft + nnvg)

Default:

MDI

Fraction of c4 plants

CABLE_PFTPARM::froot1_io

Type:

real(npft + nnvg)

Default:

MDI

Fraction of root in 1st soil layer.

CABLE_PFTPARM::froot2_io

Type:

real(npft + nnvg)

Default:

MDI

Fraction of root in 2nd soil layer.

CABLE_PFTPARM::froot3_io

Type:

real(npft + nnvg)

Default:

MDI

Fraction of root in 3rd soil layer.

CABLE_PFTPARM::froot4_io

Type:

real(npft + nnvg)

Default:

MDI

Fraction of root in 4th soil layer.

CABLE_PFTPARM::froot5_io

Type:

real(npft + nnvg)

Default:

MDI

Fraction of root in 5th soil layer.

CABLE_PFTPARM::froot6_io

Type:

real(npft + nnvg)

Default:

MDI

Fraction of root in 6th soil layer.

CABLE_PFTPARM::g0_io

Type:

real(npft + nnvg)

Default:

MDI

Residual stomatal conductance as net assimilation rate reaches zero (mol m^-2 s^-1)

CABLE_PFTPARM::g1_io

Type:

real(npft + nnvg)

Default:

MDI

Sensitivity of stomatal conductance to the assimilation rate (kPa).

CABLE_PFTPARM::gswmin_io

Type:

real(npft + nnvg)

Default:

MDI

Minimal stomatal conductance (mol m^-2 s^-1)

CABLE_PFTPARM::hc_io

Type:

real(npft + nnvg)

Default:

MDI

Height of canopy (m)

CABLE_PFTPARM::lai_io

Type:

real(npft + nnvg)

Default:

None

The leaf area index (LAI) of each PFT.

CABLE_PFTPARM::length_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf length (m)

CABLE_PFTPARM::ratecp1_io

Type:

real(npft + nnvg)

Default:

MDI

Plant carbon pool rate constant in 1st vegetation carbon store (year^-1).

CABLE_PFTPARM::ratecp2_io

Type:

real(npft + nnvg)

Default:

MDI

Plant carbon pool rate constant in 2nd vegetation carbon store (year^-1).

CABLE_PFTPARM::ratecp3_io

Type:

real(npft + nnvg)

Default:

MDI

Plant carbon pool rate constant in 3rd vegetation carbon store (year^-1).

CABLE_PFTPARM::ratecs1_io

Type:

real(npft + nnvg)

Default:

MDI

Soil carbon pool rate constant in 1st soil carbon store (year^-1).

CABLE_PFTPARM::ratecs2_io

Type:

real(npft + nnvg)

Default:

MDI

Soil carbon pool rate constant in 2nd soil carbon store (year^-1).

CABLE_PFTPARM::refl1_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf reflectance in 1st radiation band.

CABLE_PFTPARM::refl2_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf reflectance in 2nd radiation band.

CABLE_PFTPARM::refl3_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf reflectance in 3rd radiation band.

CABLE_PFTPARM::rp20_io

Type:

real(npft + nnvg)

Default:

MDI

Plant respiration scaler

CABLE_PFTPARM::rpcoef_io

Type:

real(npft + nnvg)

Default:

MDI

Temperature coefficient for non-leaf plant respiration (C^-1)

CABLE_PFTPARM::rs20_io

Type:

real(npft + nnvg)

Default:

MDI

Soil respiration at 20 deg C

CABLE_PFTPARM::shelrb_io

Type:

real(npft + nnvg)

Default:

MDI

Sheltering factor

CABLE_PFTPARM::taul1_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf transmittance in 1st radiation band

CABLE_PFTPARM::taul2_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf transmittance in 2nd radiation band

CABLE_PFTPARM::taul3_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf transmittance in 3rd radiation band

CABLE_PFTPARM::tmaxvj_io

Type:

real(npft + nnvg)

Default:

MDI

Maximum temperature of the start of photosynthesis (deg C)

CABLE_PFTPARM::tminvj_io

Type:

real(npft + nnvg)

Default:

MDI

Minimum temperature of the start of photosynthesis (deg C)

CABLE_PFTPARM::vbeta_io

Type:

real(npft + nnvg)

Default:

MDI

Stomatal sensitivity to soil water.

CABLE_PFTPARM::vcmax_io

Type:

real(npft + nnvg)

Default:

MDI

Maximum RuBP carboxylation rate top leaf. (mol m^-2 s^-1)

CABLE_PFTPARM::vegcf_io

Type:

real(npft + nnvg)

Default:

MDI

Scalar on soil respiration (place-holder scheme)

CABLE_PFTPARM::wai_io

Type:

real(npft + nnvg)

Default:

MDI

Wood area index (stem + branches + twigs) (not currently used in any calculations)

CABLE_PFTPARM::width_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf width (m)

CABLE_PFTPARM::xalbnir_io

Type:

real(npft + nnvg)

Default:

MDI

Not currently used in any calculations.

CABLE_PFTPARM::xfang_io

Type:

real(npft + nnvg)

Default:

MDI

Leaf angle parameter

CABLE_PFTPARM::zr_io

Type:

real(npft + nnvg)

Default:

MDI

Maximum rooting depth (cm)