Grell-Freitas Shallow Convection Module

This module contains Grell-Freitas shallow convection scheme.GF shallow convection as described in Grell and Freitas (2014) [73]. input variables are: More...

Collaboration diagram for Grell-Freitas Shallow Convection Module:

Functions/Subroutines
subroutine	cu_gf_sh::cu_gf_sh_run (us, vs, zo, t, q, z1, tn, qo, po, psur, dhdt, kpbl, rho, hfx, qfx, xland, ichoice, tcrit, dtime, zuo, xmb_out, kbcon, ktop, k22, ierr, ierrc, outt, outq, outqc, outu, outv, cnvwt, pre, cupclw, itf, ktf, its, ite, kts, kte, ipr, tropics)

Detailed Description

Parameters

us	x wind updated by physics
vs	y wind updated by physics
zo	height at model levels
t,tn	temperature without and with forcing at model levels
q,qo	mixing ratio without and with forcing at model levels
po	pressure at model levels (mb)
psur	surface pressure (mb)
z1	surface height
dhdt	forcing for boundary layer equilibrium
hfx,qfx	in w/m2 (positive, if upward from sfc)
kpbl	level of boundaty layer height
rho	moist air density
xland	land mask (1. for land)
ichoice	which closure to choose 1: old g 2: zws 3: dhdt 0: average
tcrit	parameter for water/ice conversion (258)
dtime	physics time step
zuo	normalized mass flux profile
xmb_out	base mass flux
kbcon	convective cloud base
ktop	cloud top
k22	level of updraft originating air
ierr	error flag
ierrc	error description
outt	temperature tendency (k/s)
outq	mixing ratio tendency (kg/kg/s)
outqc	cloud water/ice tendency (kg/kg/s)
outu	x wind tendency
outv	y wind tendency
pre	precip rate (mm/s)
cupclw	incloud mixing ratio of cloudwater/ice (for radiation) this needs heavy tuning factors, since cloud fraction is not included (kg/kg)
cnvwt	required for gfs physics
itf,ktf,its,ite,kts,kte	are dimensions
ipr	horizontal index of printed column
tropics	=0

Grell-Freitas Shallow Convection General Algorithm