hydrology_verticalInputs: Water vertical inputs

In medfate: Mediterranean Forest Simulation

Water vertical inputs

Description

High-level functions to define water inputs into the soil of a stand:

• Function hydrology_waterInputs performs canopy water interception and snow accumulation/melt.

• Function hydrology_snowMelt estimates snow melt using a simple energy balance, according to Kergoat (1998).

Usage

hydrology_snowMelt(tday, rad, LgroundSWR, elevation)

hydrology_waterInputs(
  x,
  prec,
  rainfallIntensity,
  pet,
  tday,
  rad,
  elevation,
  Cm,
  LgroundPAR,
  LgroundSWR,
  modifyInput = TRUE
)

Arguments

tday	Average day temperature (ºC).
rad	Solar radiation (in MJ/m2/day).
LgroundSWR	Percentage of short-wave radiation (SWR) reaching the ground.
elevation	Altitude above sea level (m).
x	An object of class spwbInput or growthInput.
prec	Precipitation for the given day (mm)
rainfallIntensity	Rainfall intensity rate (mm/h).
pet	Potential evapotranspiration for the given day (mm)
Cm	Canopy water storage capacity.
LgroundPAR	Percentage of photosynthetically-active radiation (PAR) reaching the ground.
modifyInput	Boolean flag to indicate that the input x object should be modified during the simulation.

Details

The function simulates different vertical hydrological processes, which are described separately in other functions. If modifyInput = TRUE the function will modify the x object (including both soil moisture and the snowpack on its surface) as a result of simulating hydrological processes.

Value

Function hydrology_waterInputs returns a named vector with the following elements, all in mm:

Rain	Precipitation as rainfall.
Snow	Precipitation as snow.
Interception	Rainfall water intercepted by the canopy and evaporated.
Snowmelt	Snow melted during the day, and added to the water infiltrated.
NetRain	Rainfall reaching the ground.

Author(s)

Miquel De Cáceres Ainsa, CREAF

References

Kergoat L. (1998). A model for hydrological equilibrium of leaf area index on a global scale. Journal of Hydrology 212–213: 268–286.

See Also

spwb_day, hydrology_rainInterception, hydrology_soilEvaporation

medfate documentation built on April 4, 2025, 2:01 a.m.