Start | Index | Overview • PREV | UP | NEXT The sim components in the package lintul5 implement the Lintul5 algorithms from (L5). They are designed to reproduce same results (up to rounding errors) as the original FST program.
The original model is subdivided into multiple sim components (which should be used in the following order to be as close as possible to the original algorithm).
Daylength calculation is performed by the transformer component AstronomicParametersTransformer
PotentialEvapoTranspiration component calculates the potential evaporation and transpiration
The component calculates evapo-transpiration corresponding to the original model's PENMAN() routine.
It takes inputs from the components Irradiation and Lintul5 (fractional light interception FINT).
It's outputs are used by WaterBalance.
For documentation of the algorithms please consult the orginal documentation (L5)
Calculation of irradiation has been moved from PENMAN() routine to Irradiation sim component. This does not affect the result.
(L5) Joost Wolf, User guide for LINTUL5, Wageningen UR, Wageningen, 2012
| Content Type | Name | Description | Data Type | Unit | Min Value | Max Value | Default Value |
|---|---|---|---|---|---|---|---|
| constant | cALTI | altitude of the weather station, | DOUBLE | m | - | - | 0.0 |
| constant | cCFET | Correction factor transpiration rate | DOUBLE | 1 | - | - | 1.0 |
| constant | cCO | Atmospheric CO2 concentration | DOUBLE | ppm | 0.0 | 2000.0 | 370.0 |
| constant | cET0CorrectionTableCo2 | Co2 concentration for correction of ET0 (c.f. FPENMTB) | DOUBLEARRAY | ppm | - | - | 40.0 360.0 720.0 1000.0 2000.0 |
| constant | cET0CorrectionTableFactor | Correction factor of ET0 as function of Co2Concentration (c.f. FPENMTB) | DOUBLEARRAY | 1 | - | - | 1.05 1.0 0.95 0.92 0.92 |
| constant | cFPENMTB | table with correction factors for Penman evapo-transpiration rate as function of atmospheric CO2 concentration for C3 crops | DOUBLEARRAY | 1 | - | - | - |
| input | iATMTR | atmospheric transmission | DOUBLE | 1 | - | - | 0.0 |
| input | iAVRAD | Daily total irradiation | DOUBLE | J/(m2 d) | - | - | 0.0 |
| input | iFINT | fractional light interception | DOUBLE | 1 | - | - | 0.0 |
| input | iTMAX | maximal air temperature during day (output of routine WEATHR) | DOUBLE | °C | - | - | 0.0 |
| input | iTMIN | minimal air temperature during day (output of routine WEATHR) | DOUBLE | °C | - | - | 0.0 |
| input | iVAP | vapour pressure at 9:00 am (output of routine WEATHR) | DOUBLE | mbar | - | - | 0.0 |
| input | iWIND | average wind speed (output of routine WEATHR) | DOUBLE | m/s | - | - | 0.0 |
| out | E0 | Potential evaporation of open water | DOUBLE | mm/d | - | - | 0.0 |
| out | ES0 | Potential evaporation of soil | DOUBLE | mm/d | - | - | 0.0 |
| out | PotentialSoilEvaporation | Potential evaporation | DOUBLE | mm/d | - | - | 0.0 |
| out | PotentialTranspiration | Potential transpiration | DOUBLE | mm/d | - | - | 0.0 |
| out | ReferenceCropEvapotranspirationCo2Corrected | Potential evapotranspiration of crop (CO2 corr.) | DOUBLE | mm/d | - | - | 0.0 |