adiabatic_ascent {aiRthermo} | R Documentation |
A particle located at Pstart pressure (Pa), Tstart temperature (K) and wstart mixing ratio (kg/kg) ascends (pseudo)adiabatically to Pend (Pa). The evolution is computed by numerically integrating the dT/dP ordinary differential equation (ODE) using a 4th order Runge-Kutta scheme, assuming hydrostatic equilibrium and that the particle is saturated after the Lifted Condensation Level (LCL).
adiabatic_ascent(Pstart, Tstart, wstart, Pend, deltaP = 1)
Pstart |
Initial value for pressure (Pa). |
Tstart |
Initial value for temperature (K). |
wstart |
Initial value for mixing ratio (kg/kg). |
Pend |
End value for pressure (Pa). |
deltaP |
deltaP (Pa) represents the numerical increment used for integrating the Ordinary Differential Equation (ODE) representing the vertical evolution. |
The function returns a list that includes Tend (final value of temperature) and mixRatioEnd (mixing ratio of the air parcel at the end of the evolution).
Tend |
Temperature at the end (K). |
mixRatioEnd |
Mixing ratio at the end (kg/kg). |
P0<-101325 T0<-273.15 w0<-0.0025 adiabEvov<-adiabatic_ascent(P0,T0,w0,50000,5)