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

This module contains Grell-Freitas shallow convection scheme.

GF shallow convection as described in Grell and Freitas (2014) [73]. input variables are:

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

Function/Subroutine Documentation

cu_gf_sh_run()

subroutine cu_gf_sh::cu_gf_sh_run	(	real(kind=kind_phys), dimension (its:ite,kts:kte), intent(in)	us,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(in)	vs,
		real(kind=kind_phys), dimension (its:ite,kts:kte)	zo,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(in)	t,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	q,
		real(kind=kind_phys), dimension (its:ite), intent(in)	z1,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(in)	tn,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	qo,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(in)	po,
		real(kind=kind_phys), dimension (its:ite), intent(in)	psur,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(in)	dhdt,
		integer, dimension (its:ite), intent(in)	kpbl,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(in)	rho,
		real(kind=kind_phys), dimension (its:ite), intent(in)	hfx,
		real(kind=kind_phys), dimension (its:ite), intent(in)	qfx,
		real(kind=kind_phys), dimension (its:ite), intent(in)	xland,
		integer, intent(in)	ichoice,
		real(kind=kind_phys), intent(in)	tcrit,
		real(kind=kind_phys), intent(in)	dtime,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	zuo,
		real(kind=kind_phys), dimension (its:ite), intent(out)	xmb_out,
		integer, dimension (its:ite), intent(out)	kbcon,
		integer, dimension (its:ite), intent(out)	ktop,
		integer, dimension (its:ite), intent(out)	k22,
		integer, dimension (its:ite), intent(inout)	ierr,
		character*50, dimension(its:ite)	ierrc,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	outt,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	outq,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	outqc,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	outu,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	outv,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	cnvwt,
		real(kind=kind_phys), dimension (its:ite)	pre,
		real(kind=kind_phys), dimension (its:ite,kts:kte), intent(inout)	cupclw,
		integer, intent(in)	itf,
		integer, intent(in)	ktf,
		integer, intent(in)	its,
		integer, intent(in)	ite,
		integer, intent(in)	kts,
		integer, intent(in)	kte,
		integer, intent(in)	ipr,
		integer, dimension (its:ite), intent(in)	tropics
	)

• Initial detrainmentrates

• Calculate zws for shallow convection closure (grant 2001)

• Determin max height(m) above ground where updraft air can originate

• Call cup_env() to calculate moist static energy, heights, qes

• Call cup_env_clev() to calculate environmental values on cloud levels

• Determine level with highest moist static energy content (k22)

• Call get_cloud_bc() and cup_kbcon() to determine the level of convective cloud base (kbcon)

• Call cup_minimi() and get_inversion_layers() to get inversion layers for cloud tops

• Call rates_up_pdf() to get normalized mass flux profile

• Call get_lateral_massflux() to calculate mass entrainment and detrainment

Definition at line 65 of file cu_gf_sh.F90.

References cu_gf_deep::cup_env(), cu_gf_deep::cup_env_clev(), cu_gf_deep::cup_kbcon(), cu_gf_deep::cup_minimi(), cu_gf_deep::cup_up_aa0(), cu_gf_deep::get_cloud_bc(), cu_gf_deep::get_inversion_layers(), cu_gf_deep::get_lateral_massflux(), and cu_gf_deep::rates_up_pdf().

Referenced by cu_gf_driver::cu_gf_driver_run().

Here is the call graph for this function:

Here is the caller graph for this function: