KingProbe: KingProbe

Description Usage Arguments Details Value Author(s) Examples

Description

Calculates liquid water content from King Probe

Usage

1
KingProbe(Power, TAS, p, T, N)

Arguments

Power

The power in watts measured by the King probe (Watts)

TAS

The true airspeed (m/s)

p

Pressure (hPa)

T

Temperature (deg. C)

N

Droplet concentration (e.g., from a CDP)

Details

Calculates an estimate of the dry-probe power and subtracts this from the total power, then converts the resulting residual power to a measure of the liquid water content. If applied to successive measurements, the routine maintains an estimate of the dry-air relationship between Nusselt number and Reynolds number and uses that to adjust the zero reading when out of cloud (as indicated by a measured droplet concentration falling below some threshold).

Value

Liquid water content (g/m^3)

Author(s)

William Cooper

Examples

1
2
3
4
## Not run: lwc <- KingProbe (25, 180, 700, 10, 0) 
## Not run: lwc <- KingProbe (RAFdata$PLWC, RAFdata$TASX, RAFdata$PSXC, 
RAFdata$ATX, RAFdata$CONCD_LWII)
## End(Not run)

WilliamCooper/Ranadu documentation built on July 10, 2019, 12:40 a.m.