Description Usage Arguments Value Author(s) References Examples
Computes the saturation pressure of water vapour in air over water or ice.
1 | wvapsat(tempk, ice)
|
tempk |
Air temperature [K]. |
ice |
Over water or ice [0,1]. |
Partial pressure of water vapour [hPa].
Javier G. Corripio
Lowe, P. R.: 1977, An approximating polynomial for the computation of saturation vapor pressure, Journal of Applied Meteorology 16, 100-103.
1 2 3 4 5 6 7 8 9 | ## Plot the differences saturation pressure over water and over ice
plot(wvapsat(250:300), xlab='Temperature', ylab='saturation vapour pressure [hPa]')
Tair = 223:273
plot(Tair,wvapsat(Tair),ty='l',lwd=2,col=4,xlab='Temperature',
ylab='saturation vapour pressure [hPa]')
lines(Tair,wvapsat(Tair,ice=1),col=8)
legend('topleft',c('saturation pressure over water','saturation pressure over ice'),
col=c(4,8),lwd=2)
|
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