hydrology_soilEvaporationAmount {medfate} | R Documentation |
Bare soil evaporation and herbaceous transpiration
Description
Functions:
Function
hydrology_soilEvaporationAmount
calculates the amount of evaporation from bare soil, following Ritchie (1972).Function
hydrology_soilEvaporation
calculates the amount of evaporation from bare soil and distributes it among soil layers.Function
hydrology_herbaceousTranspiration
calculates the amount of transpiration due to herbaceous plants.
Usage
hydrology_soilEvaporationAmount(DEF, PETs, Gsoil)
hydrology_soilEvaporation(
soil,
snowpack,
soilFunctions,
pet,
LgroundSWR,
modifySoil = TRUE
)
hydrology_herbaceousTranspiration(
pet,
LherbSWR,
herbLAI,
soil,
soilFunctions,
modifySoil = TRUE
)
Arguments
DEF |
Water deficit in the (topsoil) layer. |
PETs |
Potential evapotranspiration at the soil surface. |
Gsoil |
Gamma parameter (maximum daily evaporation). |
soil |
An object of class |
snowpack |
The amount of snow (in water equivalents, mm) in the snow pack. |
soilFunctions |
Soil water retention curve and conductivity functions, either 'SX' (for Saxton) or 'VG' (for Van Genuchten). |
pet |
Potential evapotranspiration for a given day (mm) |
LgroundSWR |
Percentage of short-wave radiation (SWR) reaching the ground. |
modifySoil |
Boolean flag to indicate that the input |
LherbSWR |
Percentage of short-wave radiation (SWR) reaching the herbaceous layer. |
herbLAI |
Leaf area index of the herbaceous layer. |
Value
Function hydrology_soilEvaporationAmount
returns the amount of water evaporated from the soil.
Function hydrology_soilEvaporation
returns a vector of water evaporated from each soil layer.
Author(s)
Miquel De Cáceres Ainsa, CREAF
References
Ritchie (1972). Model for predicting evaporation from a row crop with incomplete cover. - Water resources research.
See Also
spwb
, hydrology_waterInputs
, hydrology_infiltration