EcoHydRology (version 0.3.8)

SensibleHeat: Sensible Heat Exchange

Description

Sensible heat exchange between a surface and the surrounding air [kJ m-2 d-1]

Usage

SensibleHeat(surftemp, airtemp, wind)

Arguments

surftemp

surface temperature [C]

airtemp

average dailiy air temperature [C]

wind

average daily windspeed [m/s]

Value

Examples

##---- Should be DIRECTLY executable !! ----
##-- ==>  Define data, use random,
##--	or do  help(data=index)  for the standard data sets.

## The function is currently defined as
function(surftemp,airtemp,wind){
# sensible heat exchange between a surface and the surrounding air [kJ m-2 d-1]

#surftemp: surface temperature [C]
#airtemp: average dailiy air temperature [C]
#wind: average daily windspeed [m/s]

latentht<-2500 #latent heat of vaporization [kJ kg-1]

heatcapacity<-1.25 #approx. heat capacity of air [kJ m-3 C-1]

windfunction<-5.3*(1+wind)

return(86400*heatcapacity*(surftemp-airtemp)*windfunction/latentht)
  }