UPP (develop)
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CALLCL.f File Reference

Subroutine that computes LCL heights and pressure. More...

Go to the source code of this file.

Functions/Subroutines

subroutine callcl (p1d, t1d, q1d, plcl, zlcl)
 Subroutine that computes the lifting condensation level (LCL) height (above ground level) and pressure in each column at mass points.
 

Detailed Description

Subroutine that computes LCL heights and pressure.

This routine computes the lifting condensation level pressure and height in each column at mass points. The height is above ground level. The equation used to find the LCL pressure is from Boltan (1980, MWR) and is the same as that used in subroutine CALCAPE.

This is a test version. Still to be resolved is the "best" parcel to lift.

Parameters
[in]P1DArray of parcel pressures (Pa).
[in]T1DArray of parcel temperatures (K).
[in]Q1DArray of parcel specific humidities (kg/kg).
[out]PLCLParcel Pressure at LCL (Pa).
[out]ZLCLParcel AGL height at LCL (m).

Program history log:

Date Programmer Comments
1993-03-15 Russ Treadon Initial
1998-06-16 T Black Convesion from 1-D to 2-D
2000-01-04 Jim Tuccillo MPI Version
2002-04-24 Mike Baldwin WRF Version
2019-10-30 Bo Cui Remove "GOTO" Statement
2021-07-28 W Meng Restriction compuatation from undefined grids
2021-09-02 Bo Cui Decompose UPP in X direction
Author
Russ Treadon W/NP2
Date
1993-03-15

Definition in file CALLCL.f.

Function/Subroutine Documentation

◆ callcl()

subroutine callcl ( real, dimension(ista:iend,jsta:jend), intent(in)  p1d,
real, dimension(ista:iend,jsta:jend), intent(in)  t1d,
real, dimension(ista:iend,jsta:jend), intent(in)  q1d,
real, dimension(ista:iend,jsta:jend), intent(inout)  plcl,
real, dimension(ista:iend,jsta:jend), intent(inout)  zlcl 
)

Subroutine that computes the lifting condensation level (LCL) height (above ground level) and pressure in each column at mass points.

Parameters
[in]P1DArray of parcel pressures (Pa).
[in]T1DArray of parcel temperatures (K).
[in]Q1DArray of parcel specific humidities (kg/kg).
[out]PLCLParcel Pressure at LCL (Pa).
[out]ZLCLParcel AGL height at LCL (m).

Definition at line 41 of file CALLCL.f.

Referenced by miscln().