The component_values.csv file contains the outputs of the simulation at component scale (e.g. the light interception of each leaf) for each individual object (e.g. a plant). The variables written in this file are controlled by the component_variables parameter in config.yml).
The table below summarizes the information about all possible variables. All values in \(W \cdot m^{-2}\) are per component surface (\(W \cdot m_{component}^{-2}\)). All other values are integrated at the component scale, and possibly over the time-step (e.g. \(J\) can be considered \(J \cdot component^{-1} \cdot timestep^{-1}\), or \(\mu mol\) can be considered \(\mu mol\cdot component^{-1} \cdot timestep^{-1}\)).
| Variable.name | Unit | type | Description |
|---|---|---|---|
| step_number | - | Integer | Index of the step |
| step_duration | seconds | Integer | Step duration |
| item_id | - | Integer | Item ID (e.g. plant) as given in the OPS as plant_id |
| component_id | - | Integer | Unique ID for the component in the given item (as read in the OPF) |
| group | - | String | Functional group. Given by the Group field in the plant.yml file |
| type | - | String | Component type. Given by the Type names in the plant.yml files |
| area | m2 | Float | Component area (i.e. mesh area) |
| surface_hits | hit m-2 | Float | Component light ray hits count per area unit |
| barycentre_x | m | Float | Barycentre of the component in X (~ X position of the component) |
| barycentre_y | m | Float | Barycentre of the component in Y (~ Y position of the component) |
| barycentre_z | m | Float | Barycentre of the component in Z (~ Z position of the component) |
| sky_fraction | 0-1 | Float | Fraction of the semi-hemisphere viewed by the component that is sky |
| Ri_PAR_0_f | W m-2 | Float | Order 0 irradiance (intercepted light before scattering) for PAR |
| Ri_NIR_0_f | W m-2 | Float | Order 0 irradiance for NIR (W m-2) |
| Ri_PAR_0_q | J | Float | Order 0 energy (intercepted light before scattering) for PAR |
| Ri_NIR_0_q | J | Float | Order 0 energy for NIR (J) |
| Ri_PAR_f | W m-2 | Float | Order n (including scattering) irradiance for PAR |
| Ri_NIR_f | W m-2 | Float | Order n irradiance for NIR |
| Ri_TIR_f | W m-2 | Float | Intercepted TIR irradiance (from atmosphere + environment) |
| Ri_PAR_q | J | Float | Order n energy for PAR |
| Ri_NIR_q | J | Float | Order n energy for PAR |
| Ri_TIR_q | J | Float | Intercepted TIR energy (from atmosphere + environment) |
| Ra_PAR_0_f | W m-2 | Float | Order 0 absorbed PAR |
| Ra_NIR_0_f | W m-2 | Float | Order 0 absorbed NIR |
| Ra_PAR_0_q | J | Float | Order 0 absorbed PAR |
| Ra_NIR_0_q | J | Float | Order 0 absorbed NIR |
| Ra_PAR_f | W m-2 | Float | Order n absorbed PAR |
| Ra_NIR_f | W m-2 | Float | Order n absorbed NIR |
| Ra_TIR_f | W m-2 | Float | Absorbed TIR power (balance: intercepted - emmitted) |
| Ra_PAR_q | J | Float | Order n absorbed PAR |
| Ra_NIR_q | J | Float | Order n absorbed NIR |
| Ra_TIR_q | J | Float | Absorbed TIR energy (balance: intercepted - emitted) |
| An_f | umol m-2 s-1 | Float | Net CO2 assimilation rate |
| An_q | umol | Float | Net assimilated CO2 |
| Gs | mol m-2 s-1 | Float | Stomatal conductance for CO2 |
| H_f | W m-2 | Float | Sensible heat flux |
| H_q | J | Float | Sensible heat quantity |
| LE_f | W m-2 | Float | Latent heat flux |
| LE_q | J | Float | Latent heat quantity |
| Tr_f | l m-2 s-1 | Float | Transpiration flux |
| Tr_q | l | Float | Transpiration quantity |
| T | Celsius degree | Float | Temperature |
This table can be downloaded here:
Note that all barycentre_* variables are computed when required, so they slow down model execution time a little bit when set to true.
The summary.csv file summarizes simulated values at plot scale for each Item in the scene (e.g. plant, soil) for each time-step, such as the total leaf area or intercepted shortwave radiation.
The scene_values.csv file summarizes simulated values at plot scale for each time-step, such as the total leaf area or intercepted shortwave radiation.