belowground: Estimate temperature at specified height below ground

In ilyamaclean/microclimf: Fast above, below or within canopy gridded microclimate modelling with R

Estimate temperature at specified height below ground

Description

The function 'belowground' runs the below ground component of the microclimate model.

Usage

belowground(micro, reqhgt = -0.05, pai_a = NA, tfact = 1.5)

Arguments

micro	object of class microin as returned by [modelin()]
reqhgt	height above ground for which wind speeds are wanted. If negative (below ground) wind friction velocity only is returned
pai_a	plant area index above 'reqhgt'. Determined from total 'pai' if not supplied.
tfact	coefficient determining sensitivity of soil moisture to variation in topographic wetness (see [soilmdistribute()])

Details

'pai_a' is used to calculate the radiation intercepted by leaves at 'reqhgt' if below canopy. If not supplied it is calculated from total plant area index by assuming leaf density within the canopy is uniformly vertically distributed. If supplied it must have the same dimensions as micro$pai. I.e. with the same x and y dims as the the supplied dtm and values for each hour as the z dimension.

Value

a list of the following:

Tz

Soil temperatures at height 'reqhgt' below ground (deg C)

T0

Ground surface temperatures (deg C)

soilm

Soil moisture in top 10 cm of soil (volumetric water fraction)

See Also

[aboveground()]

ilyamaclean/microclimf documentation built on Sept. 28, 2024, 4:55 p.m.