Namelist Options Description

The SCM and the UFS Atmosphere access runtime configurations from file input.nml. This file contains various namelists records that control aspects of the I/O, dynamics, physics etc. Most physics-related options are in reords &gfs_physics_nml and &cires_ugwp_nml. When using the GFDL microphysics scheme, variables in namelist &gfdl_cloud_microphysics_nml are also used. Additional specifications for stochastic physics are in namelists &stochy_nam and &nam_sfcperts.

• Namelist &gfdl_cloud_microphysics_nml is only relevant when the GFDL microphysics is used, and its variables are defined in module_gfdl_cloud_microphys.F90.
• Namelist &cires_ugwp_nml specifies options for the use of CIRES Unified Gravity Wave Physics Version 0.
• Namelist &gfs_physics_nml pertains to all of the suites used, but some of the variables are only relevant for specific parameterizations. Its variables are defined in file GFS_typedefs.F90 in the host model.
• Namelist &stochy_nam specifies options for the use of SPPT, SKEB and SHUM, while namelist &nam_sfcperts specifies whether and how stochastic perturbations are used in the Noah Land Surface Model.

NML Description

option	DDT in Host Model	Description	Default Value
&gfs_physics_nml
fhzero	gfs_control_type	hour between clearing of diagnostic buckets	0.0
h2o_phys	gfs_control_type	flag for stratosphere h2o scheme	.false.
ldiag3d	gfs_control_type	flag for 3D diagnostic fields	.false.
lssav	gfs_control_type	logical flag for storing diagnostics	.false.
cplflx	gfs_control_type	logical flag for cplflx collection	.false.
cplwav	gfs_control_type	logical flag for cplwav collection	.false.
cplchm	gfs_control_type	logical flag for chemistry collection	.false.
lsidea	gfs_control_type	logical flag for idealized physics	.false.
oz_phys	gfs_control_type	flag for old (2006) ozone physics	.true.
oz_phys_2015	gfs_control_type	flag for new (2015) ozone physics	.false.
fhcyc	gfs_control_type	frequency for surface data cycling in hours	0.0
use_ufo	gfs_control_type	flag for using unfiltered orography surface option	.false.
pre_rad	gfs_control_type	flag for testing purpose	.false.
ncld	gfs_control_type	number of hydrometeors	1
imp_physics	gfs_control_type	choice of microphysics scheme: 11: GFDL microphysics scheme 8: Thompson microphysics scheme 10: Morrison-Gettelman microphysics scheme	99
pdfcld	gfs_control_type	flag for PDF clouds	.false.
fhswr	gfs_control_type	frequency for shortwave radiation (secs)	3600.
fhlwr	gfs_control_type	frequency for longwave radiation (secs)	3600.
levr	gfs_control_type	number of vertical levels for radiation calculations	-99
nfxr	gfs_control_type	second dimension of radiation input/output array fluxr	39+6
iflip	gfs_control_type	control flag for vertical index direction 0: index from TOA to surface 1: index from surface to TOA	1
icliq_sw	gfs_control_type	sw optical property for liquid clouds 0: input cloud optical depth, ignoring iswcice setting 1: cloud optical property scheme based on Hu and Stamnes (1993) [89] method 2: cloud optical property scheme based on Hu and Stamnes (1993) [89] - updated	1
iovr_sw	gfs_control_type	control flag for cloud overlap in SW radiation 0: random overlapping clouds 1: max/ran overlapping clouds 2: maximum overlap clouds (mcica only) 3: decorrelation-length overlap (mcica only)	1
iovr_lw	gfs_control_type	control flag for cloud overlap in LW radiation 0: random overlapping clouds 1: max/ran overlapping clouds 2: maximum overlap clouds (mcica only) 3: decorrelation-length overlap (mcica only)	1
ictm	gfs_control_type	external data time/date control flag -2: same as 0, but superimpose seasonal cycle from climatology data set -1: use user provided external data for the forecast time, no extrapolation 0: use data at initial condition time, if not available, use latest, no extrapolation 1: use data at the forecast time, if not available, use latest and extrapolation yyyy0: use yyyy data for the forecast time, no further data extrapolation yyyy1: use yyyy data for the forecast. if needed, do extrapolation to match the fcst time	1
crick_proof	gfs_control_type	control flag for eliminating CRICK .true.: apply layer smoothing to eliminate CRICK .false.: do not apply layer smoothing	.false.
ccnorm	gfs_control_type	control flag for in-cloud condensate mixing ratio .true.: normalize cloud condensate .false.: not normalize cloud condensate	.false.
norad_precip	gfs_control_type	control flag for not using precip in radiation (Ferrier scheme) .true.: snow/rain has no impact on radiation .false.: snow/rain has impact on radiation	.false.
ialb	gfs_control_type	SW surface albedo control flag: 0: using climatology surface albedo scheme for SW 1: using MODIS based land surface albedo for SW	0
iems	gfs_control_type	LW surface emissivity control flag (ab 2-digit integer) : a: =0 set surface air/ground t same for LW radiation =1 set surface air/ground t diff for LW radiation b: =0 use fixed surface emissivity = 1.0 (black-body) =1 use varying climatology surface emissivity (veg based) =2 future development (not yet)	0
iaer	gfs_control_type	4-digit aerosol flag (dabc for aermdl, volcanic, LW, SW): d:tropospheric aerosol model scheme flag =0 or none, opac-climatology aerosol scheme =1 use gocart climatology aerosol scheme =2 use gocart prognostic aerosol scheme =5 opac-clim new spectral mapping a:=0 use background stratospheric aerosol =1 include stratospheric volcanic aerosol b:=0 no tropospheric aerosol in LW radiation =1 include tropospheric aerosol in LW c:=0 no tropospheric aerosol in SW radiation =1 include tropospheric aerosol in SW	1
ico2	gfs_control_type	$CO_2$ data source control flag: 0: prescribed value (380 ppmv) 1: yearly global averaged annual mean from observations 2: monthly 15 degree horizontal resolution from observations	0
isubc_sw	gfs_control_type	subgrid cloud approximation control flag in SW radiation: 0: no McICA approximation in SW radiation 1: use McICA with prescribed permutation seeds (test mode) 2: use McICA with randomly generated permutation seeds	0
isubc_lw	gfs_control_type	subgrid cloud approximation control flag in LW radiation: 0: no McICA approximation in LW radiation 1: use McICA with prescribed permutatition seeds (test mode) 2: use McICA with randomly generated permutation seeds	0
isol	gfs_control_type	solar constant scheme control flag: 0: fixed value = 1366.0 $W m^{-2}$ (old standard) 10: fixed value = 1360.8 $W m^{-2}$ (new standard) 1: NOAA ABS-scale TSI table (yearly) with 11-yr cycle approximation 2: NOAA TIM-scale TSI table (yearly) with 11-yr cycle approximation 3: CMIP5 TIM-scale TSI table (yearly) with 11-yr cycle approximation 4: CMIP5 TIM-scale TSI table (monthly) with 11-yr cycle approximation	0
lwhtr	gfs_control_type	logical flag for output of longwave heating rate	.true.
swhtr	gfs_control_type	logical flag for output of shortwave heating rate	.true.
cnvgwd	gfs_control_type	logical flag for convective gravity wave drag scheme dependent on maxval(cdmbgwd(3:4) == 0.0)	.false.
shal_cnv	gfs_control_type	logical flag for calling shallow convection	.false.
lmfshal	gfs_control_type	flag for mass-flux shallow convection scheme in the cloud fraction calculation	shal_cnv .and. (imfshalcnv > 0)
lmfdeep2	gfs_control_type	flag for mass-flux deep convection scheme in the cloud fraction calculation	imfdeepcnv == 2 .or. 3 .or.4
cal_pre	gfs_control_type	logical flag for calling precipitation type algorithm	.false.
redrag	gfs_control_type	logical flag for applying reduced drag coefficient for high wind over sea in GFS surface layer scheme	.false.
dspheat	gfs_control_type	logical flag for using TKE dissipative heating to temperature tendency in hybrid EDMF and TKE-EDMF schemes	.false.
hybedmf	gfs_control_type	logical flag for calling hybrid EDMF PBL scheme	.false.
satmedmf	gfs_control_type	logical flag for calling TKE EDMF PBL scheme	.false.
isatmedmf	gfs_control_type	flag for scale-aware TKE-based moist EDMF scheme 0: initial version of satmedmf (Nov.2018) 1: updated version of satmedmf (as of May 2019)	0
do_mynnedmf	gfs_control_type	flag to activate MYNN-EDMF scheme	.false.
random_clds	gfs_control_type	logical flag for whether clouds are random	.false.
trans_trac	gfs_control_type	logical flag for convective transport of tracers	.false.
lheatstrg	gfs_control_type	logical flag for canopy heat storage parameterization	.false.
shinhong	gfs_control_type	flag for scale-aware Shinhong PBL scheme	.false.
do_ysu	gfs_control_type	flag for YSU PBL scheme	.false.
cnvcld	gfs_control_type	logical flag for convective cloud	.false.
imfshalcnv	gfs_control_type	flag for mass flux shallow convective scheme: 1:July 2010 version of mass-flux shallow convective scheme (operational as of 2016) 2: scale- & aerosol-aware mass-flux shallow convective scheme (2017) 3: scale- & aerosol-aware Grell-Freitas scheme (GSD) 4: new Tiedtke scheme (CAPS) 0: modified Tiedtke's eddy-diffusion shallow convective scheme -1: no shallow convection used	1
imfdeepcnv	gfs_control_type	flag for mass-flux deep convective scheme: -1: Chikira-Sugiyama deep convection (with cscnv = .T.) 1: July 2010 version of SAS convective scheme (operational version as of 2016) 2: scale- & aerosol-aware mass-flux deep convective scheme (2017) 3: scale- & aerosol-aware Grell-Freitas scheme (GSD) 4: new Tiedtke scheme (CAPS)	1
lgfdlmprad	gfs_control_type	flag for GFDL mp scheme and radiation consistency	.false.
cdmbgwd(4)	gfs_control_type	multiplication factors for mountain blocking(1), orographic gravity wave drag(2) [1]: GWDPS mountain blocking [2]: GWDPS orographic gravity wave drag [3]: the modulation total momentum flux of NGWs by intensities of the total precipitation [4]: TKE for future tests and applications	2.0,0.25,1.0,1.0
prslrd0	gfs_control_type	pressure level above which to apply Rayleigh damping	0.0d0
lsm	gfs_control_type	flag for land surface model to use 1: Noah LSM 2: RUC LSM	1
lsoil	gfs_control_type	number of soil layers	4
ivegsrc	gfs_control_type	flag for vegetation type dataset choice: 0: USGS 1: IGBP(20 category) 2: UMD (13 category)	2
isot	gfs_control_type	flag for soil type dataset choice: 0: Zobler soil type (9 category) 1: STATSGO soil type (19 category)	0
mom4ice	gfs_control_type	flag controls mom4 sea ice	.false.
debug	gfs_control_type	flag for debug printout	.false.
nstf_name(5)	gfs_control_type	NSST related paramters: nstf_name(1): 0=NSST off, 1= NSST on but uncoupled, 2= NSST on and coupled nstf_name(2): 1=NSST spin up on, 0=NSST spin up off nstf_name(3): 1=NSST analysis on, 0=NSST analysis off nstf_name(4): zsea1 in mm nstf_name(5): zesa2 in mm	/0,0,1,0,5/
nst_anl	gfs_control_type	flag for NSST analysis in gcycle/sfcsub	.false.
effr_in	gfs_control_type	logical flag for using input cloud effective radii calculation	.false.
aero_in	gfs_control_type	logical flag for using aerosols in Morrison-Gettelman microphysics	.false.
iau_delthrs	gfs_control_type	incremental analysis update (IAU) time interval in hours	6
iaufhrs	gfs_control_type	forecast hours associated with increment files	-1
Parameters Specific to csawmg Suite
crtrh(3)	gfs_control_type	critical relative humidity at the surface, PBL top and at the top of the atmosphere	0.90,0.90,0.90
cscnv	gfs_control_type	logical flag for Chikira-Sugiyama deep convection	.false.
do_aw	gfs_control_type	flag for Arakawa-Wu scale-awere adjustment	.false.
do_awdd	gfs_control_type	flag to enable treating convective tendencies following Arakwaw-Wu for downdrafts (2013)	.false.
do_sb_physics	gfs_control_type	logical flag for SB2001 autoconversion or accretion	.true.
do_cldice	gfs_control_type	flag for cloud ice processes for MG microphysics	.true.
hetfrz_classnuc	gfs_control_type	flag for heterogeneous freezing for MG microphysics	.false.
mg_nccons	gfs_control_type	flag for constant droplet concentration for MG microphysics	.false.
mg_nicons	gfs_control_type	flag for constant ice concentration for MG microphysics	.false.
mg_ngcons	gfs_control_type	flag for constant graupel concentration for MG microphysics	.false.
sed_supersat	gfs_control_type	flag for allowing supersaturation after sedimentation for MG microphysics	.true.
mg_do_graupel	gfs_control_type	flag for turning on prognostic graupel (with fprcp=2)	.true.
mg_do_hail	gfs_control_type	flag for turning on prognostic hail (with fprcp=2)	.false.
shcnvcw	gfs_control_type	logical flag for shallow convective cloud	.false.
xkzm_h	gfs_control_type	background vertical diffusion for heat and q	1.0d0
xkzm_m	gfs_control_type	background vertical diffusion for momentum	1.0d0
xkzm_s	gfs_control_type	sigma threshold for background mom. diffusion	1.0d0
xkzminv	gfs_control_type	maximum background value of heat diffusivity in the inversion layer	0.3
microp_uniform	gfs_control_type	logical flag for uniform subcolumns for MG microphysics	.true.
mg_do_ice_gmao	gfs_control_type	logical flag for turning on gmao ice autoconversion in MG microphysics	.false.
mg_do_liq_liu	gfs_control_type	logical flag for turning on Liu liquid treatment in MG microphysics	.true.
mg_dcs	gfs_control_type	autoconversion size threshold for cloud ice to snow in MG microphysics	200.0
mg_alf	gfs_control_type	tuning factor for alphas (alpha = 1 - critical relative humidity)	1.0
mg_ts_auto_ice(2)	gfs_control_type	autoconversion time scale for ice in MG microphysics	180.0,180.0
mg_qcvar	gfs_control_type	cloud water relative variance in MG microphysics	1.0
mg_rhmini	gfs_control_type	relative humidity threshold parameter for nucleating ice	1.01
mg_ncnst	gfs_control_type	constant droplet num concentration $m^{-3}$	100.e6
mg_ninst	gfs_control_type	constant ice num concentration $m^{-3}$	0.15e6
mg_ngnst	gfs_control_type	constant graupel/hail num concertration $m^{-3}$	0.10e6
mg_berg_eff_factor	gfs_control_type	berg efficiency factor	2.0
mg_qcmin(2)	gfs_control_type	min liquid and ice mixing ratio in MG macro clouds	1.0d-9, 1.0d-9
mg_precip_frac_method	gfs_control_type	type of precipitation fraction method	'max_overlap'
fprcp	gfs_control_type	number of frozen precipitation species in MG microphysics 0: no prognostic rain and snow 1: MG2 2: MG3	0
pdfflag	gfs_control_type	pdf flag for MG macro physics	4
cs_parm(10)	gfs_control_type	tunable parameters for Chikira-Sugiyama convection	8.0,4.0,1.0e3,3.5e3,20.0,1.0,-999.,1.,0.6,0.
iccn	gfs_control_type	flag for using IN and CCN forcing in MG2/3 microphysics	.false.
rhcmax	gfs_control_type	maximum critical relative humidity	0.9999999
Parameters Specific to GSD_v0 Suite
ltaerosol	gfs_control_type	logical flag for using aerosol climotology in Thompson MP scheme	.false.
lradar	gfs_control_type	logical flag for computing radar reflectivity in Thompson MP scheme	.false.
ttendlim	gfs_control_type	temperature tendency limiter per time step in K/s, set to < 0 to deactivate	-999.0
do_mynnsfclay	gfs_control_type	flag to activate MYNN-SFCLAY scheme	.false.
grav_settling	gfs_control_type	flag to activate gravitational settling of cloud droplets as described in Nakanishi (2000) [133]	0
bl_mynn_mixlength	gfs_control_type	flag for different version of mixing length formulation 0: Original form from Nakanishi and Niino (2009) [132] . NO scale-awareness is applied to the master mixing length, regardless of "scaleware" setting 1: HRRR operational form 201609-201807. Designed to work without the mass-flux scheme. Uses BouLac mixing length in free atmosphere. 2: HRRR operational form 201807-present. Designed to be compatible with mass-flux scheme activated (default)	2
bl_mynn_edmf	gfs_control_type	flag to activate the mass-flux scheme 0: deactivate mass-flux scheme 1: activate dynamic multiplume mass-flux scheme	0
bl_mynn_edmf_mom	gfs_control_type	flag to activate the transport of momentum 0: deactivate momentum transport in mass-flux scheme 1: activate momentum transport in dynamic multiplume mass-flux scheme. bl_mynn_edmf must be set to 1	1
bl_mynn_edmf_tke	gfs_control_type	flag to activate the transport of TKE 0: deactivate TKE transport in mass-flux scheme 1: activate TKE transport in dynamic multiplume mass-flux scheme. bl_mynn_edmf must be set to 1	0
bl_mynn_edmf_part	gfs_control_type	flag to partitioning the MF and ED areas	0
bl_mynn_edmf_tkeadvect	gfs_control_type	activate computation of TKE advection (not yet in use for FV3) false: deactivate TKE advection true: activate TKE advection	.false.
bl_mynn_edmf_tkebudget	gfs_control_type	flag to activate TKE budget	0
bl_mynn_edmf_cloudpdf	gfs_control_type	flag to determine which cloud PDF to use 0: use Sommeria-Deardorff subgrid cloud PDF 1: use Kuwano-Yoshida subgrid cloud PDF 2: use modified Chaboureau-Bechtold subgrid cloud PDF	2
bl_mynn_edmf_cloudmix	gfs_control_type	flag to activate mixing of cloud species 0: deactivate the mixing of any water species mixing ratios 1: activate the mixing of all water species mixing ratios	1
bl_mynn_mixqt	gfs_control_type	flag to mix total water or individual species 0: mix individual water species separately 1: DO NOT USE	0
icloud_bl	gfs_control_type	flag to coupling SGS clouds to radiation 0: deactivate coupling subgrid clouds to radiation 1: activate subgrid cloud coupling to radiation (highly suggested)	1
lsoil_lsm	gfs_control_type	number of soil layers internal to land surface model	-1
ldiag_ugwp	GFS_control_type	flag for CIRES UGWP diagnostics	.false.
do_ugwp	GFS_control_type	flag for CIRES UGWP revised OGW .T.: revised gwdps_v0 .F.: GFS operational orographic gwdps	.false.
do_tofd	GFS_control_type	flag for turbulent orographic form drag	.false.
do_sppt	gfs_control_type	flag for stochastic SPPT option	.false.
do_shum	gfs_control_type	flag for stochastic SHUM option	.false.
do_skeb	gfs_control_type	flag for stochastic SKEB option	.false.
do_sfcperts	gfs_control_type	flag for stochastic surface perturbations option	.false.
&nam_sfcperts
nsfcpert	gfs_control_type	number of weights for stochastic surface perturbation	0
pertz0	gfs_control_type	magnitude of perturbation of momentum roughness length	-999.
pertzt	gfs_control_type	magnitude of perturbation of heat to momentum roughness length ratio	-999.
pertshc	gfs_control_type	magnitude of perturbation of soil hydraulic conductivity	-999.
pertlai	gfs_control_type	magnitude of perturbation of leaf area index	-999.
pertalb	gfs_control_type	magnitude of surface albedo perturbation	-999.
pertvegf	gfs_control_type	magnitude of perturbation of vegetation fraction	-999.
iseed_sfc	compns_stochy_mod	random seeds (if 0 use system clock)	0
sfc_tau	compns_stochy_mod	time scales	-999.
sfc_lscale	compns_stochy_mod	length scales	-999.
sppt_land	compns_stochy_mod		.false.
&stochy_nam
use_zmtnblck	compns_stochy_mod	flag for mountain blocking. .T. = do not apply perturbations below the dividing streamline that is diagnosed by the gravity wave drag, mountain blocking scheme	.false.
ntrunc	compns_stochy_mod	spectral resolution (e.g. T126) of random patterns	-999
lon_s, lat_s	compns_stochy_mod	number of longitude and latitude point for the Gaussian grid	-999
fhstoch	compns_stochy_mod	forecast hour to write out random pattern in order to restart the pattern for a different forecast (used in DA), file is stoch_out.F<HHH>	-999.0
stochini	compns_stochy_mod	set to true if wanting to read in a previous random pattern (input file need to be named stoch_ini)	.false.
sppt	compns_stochy_mod	amplitude of random patterns	-999.
sppt_tau	compns_stochy_mod	decorrelation timescales in seconds	-999.
sppt_lscale	compns_stochy_mod	decorrelation spatial scales in meters	-999.
sppt_logit	compns_stochy_mod	logit transform for SPPT to bounded interval [-1,+1]	.false.
iseed_sppt	compns_stochy_mod	seeds for setting the random number sequence (ignored if stochini is true)	0
sppt_sigtop1, sppt_sigtop2	compns_stochy_mod	sigma levels to taper perturbations to zeros	0.1, 0.025
sppt_sfclimit	compns_stochy_mod	reduce amplitude of SPPT near surface (lowest 2 levels)	.false.
shum	compns_stochy_mod	amplitude of stochastic boundary layer specific humidity perturbations	-999.
shum_tau	compns_stochy_mod	decorrelation time scales in seconds	-999.
shum_lscale	compns_stochy_mod	decorrelation spatial scales in meters	-999.
shum_sigefold	compns_stochy_mod	e-folding lengthscale (in units of sigma) of specific humidity perturbations	0.2
skeb	compns_stochy_mod	stochastic KE backscatter amplitude	-999.
skeb_tau	compns_stochy_mod	decorrelation timescales in seconds	-999.
skeb_lscale	compns_stochy_mod	decorrelation spatial scales in meter	-999.
iseed_skeb	compns_stochy_mod	seeds for setting the random number sequnce (ignored if stochini is true)	0
skeb_vfilt	compns_stochy_mod		0
skebnorm	compns_stochy_mod	0: random pattern is stream function,1: pattern is kenorm, 2: pattern is vorticity	0
skeb_varspect_opt	compns_stochy_mod	Gaussian or power law variance spectrum for SKEB (0: Gaussian, 1: power law)	0
skeb_npass	compns_stochy_mod	number of passes of smoother for dissipation estimate	11
skeb_vdof	compns_stochy_mod	the number of degrees of freedom in the vertical for the SKEB random pattern	5
skeb_sigtop1, skeb_sigtop2	compns_stochy_mod	sigma levels to taper perturbations to zeros	0.1, 0.025
skebint	compns_stochy_mod		0
&gfdl_cloud_microphysics_nml
sedi_transport	gfdl_cloud_microphys_mod	logical flag for turning on horizontal momentum transport during sedimentation	.true.
do_sedi_w	gfdl_cloud_microphys_mod	.true. to turn on vertical motion transport during sedimentation. (not supported in GFS physics)	.false.
do_sedi_heat	gfdl_cloud_microphys_mod	logical flag for turning on horizontal heat transport during sedimentation	.true.
rad_snow	gfdl_cloud_microphys_mod	logical flag for considering snow in cloud fraction calculation	.true.
rad_graupel	gfdl_cloud_microphys_mod	logical flag for considering graupel in cloud fraction calculation	.true.
rad_rain	gfdl_cloud_microphys_mod	logical flag for considering rain in cloud fraction calculation	.true.
cld_min	gfdl_cloud_microphys_mod	minimum cloud fraction. If total cloud condensate exceeds 1.0e-6 kg/kg, cloud fraction cannot be less than cld_min	0.05
const_vi	gfdl_cloud_microphys_mod	logical flag for using constant cloud ice fall speed	.false.
const_vs	gfdl_cloud_microphys_mod	logical flag for using constant snow fall speed	.false.
const_vg	gfdl_cloud_microphys_mod	logical flag for using constant graupel fall speed	.false.
const_vr	gfdl_cloud_microphys_mod	logical flag for using constant rain fall speed	.false.
vi_fac	gfdl_cloud_microphys_mod	tunable factor for cloud ice fall or the constant cloud ice fall speed when const_vi is .true.	1.
vr_fac	gfdl_cloud_microphys_mod	tunable factor for rain fall or the constant rain fall speed when const_vr is .true.	1.
vs_fac	gfdl_cloud_microphys_mod	tunable factor for snow fall or the constant snow fall speed when const_vs is .true.	1.
vg_fac	gfdl_cloud_microphys_mod	tunable factor for graupel fall or the constant graupel fall speed when const_vg is .true.	1.
vi_max	gfdl_cloud_microphys_mod	maximum fall speed for cloud ice	0.5
vs_max	gfdl_cloud_microphys_mod	maximum fall speed for snow	5.0
vg_max	gfdl_cloud_microphys_mod	maximum fall speed for graupel	8.0
vr_max	gfdl_cloud_microphys_mod	maximum fall speed for rain	12.0
qi_lim	gfdl_cloud_microphys_mod	cloud ice limiter to prevent large ice built up in cloud ice freezing and deposition	1.
prog_ccn	gfdl_cloud_microphys_mod	logical flag for activating prognostic CCN (not supported in GFS Physics)	.false.
do_qa	gfdl_cloud_microphys_mod	.true. to activate inline cloud fraction diagnosis in fast saturation adjustment. .false. to activate inline cloud fraction diagnosis in major cloud microphysics	.true.
fast_sat_adj	gfdl_cloud_microphys_mod	logical flag for adjusting cloud water evaporation (cloud water -> water vapor), cloud water freezing (cloud water -> cloud ice), cloud ice deposition (water vapor -> cloud ice) when fast saturation adjustment is activated (do_sat_adj = .true. in fv_core_nml block)	.true.
tau_l2v	gfdl_cloud_microphys_mod	time scale for evaporation of cloud water to water vapor. Increasing(decreasing) tau_l2v can decrease(boost) deposition of cloud water to water vapor	300.
tau_v2l	gfdl_cloud_microphys_mod	time scale for condensation of water vapor to cloud water. Increasing(decreasing) tau_v2l can decrease(boost) condensation of water vapor to cloud water	150.
tau_g2v	gfdl_cloud_microphys_mod	time scale for sublimation of graupel to water vapor. Increasing(decreasing) tau_g2v can decrease(boost) sublimation of graupel to water vapor	900.
tau_g2r	gfdl_cloud_microphys_mod	time scale for graupel melting. Increasing(decreasing) tau_g2r can decrease(boost) melting of graupel to rain (graupel-> rain)	600.
tau_v2g	gfdl_cloud_microphys_mod	time scale for deposition of water vapor to graupel. Increasing(decreasing) tau_v2g can decrease(boost) deposition of water vapor to graupel (water vapor -> graupel)	21600.
tau_l2r	gfdl_cloud_microphys_mod	time scale for autoconversion of cloud water to rain. Increasing(decreasing) tau_l2r can decrese(boost) autoconversion of cloud water to rain (cloud water -> rain)	900.
tau_r2g	gfdl_cloud_microphys_mod	time scale for freezing of rain to graupel. Increasing(decreasing) tau_r2g can decrease(boost) freezing of rain to graupel (rain->graupel)	900.
tau_i2s	gfdl_cloud_microphys_mod	time scale for autoconversion of cloud ice to snow. Increasing(decreasing) tau_i2s can decrease(boost) autoconversion of cloud ice to snow (cloud ice -> snow)	1000.
tau_imlt	gfdl_cloud_microphys_mod	time scale for cloud ice melting. Increasing(decreasing) tau_imlt can decrease(boost) melting of cloud ice to cloud water or rain (cloud ice -> cloud water or rain)	600.
tau_smlt	gfdl_cloud_microphys_mod	time scale for snow melting. Increasing(decreasing) tau_smlt can decrease(boost) melting of snow to cloud water or rain (snow-> cloud water or rain)	900.
rthresh	gfdl_cloud_microphys_mod	critical cloud water radius for autoconversion (cloud water -> rain). Increasing(decreasing) of rthresh makes the autoconversion harder(easier)	10.0e-6
dw_land	gfdl_cloud_microphys_mod	base value for subgrid deviation/variability over land	0.20
dw_ocean	gfdl_cloud_microphys_mod	base value for subgrid deviation/variability over ocean	0.10
ql_gen	gfdl_cloud_microphys_mod	maximum value for cloud water generated from condensation of water vapor (water vapor-> cloud water)	1.0e-3
qi_gen	gfdl_cloud_microphys_mod	maximum value of cloud ice generated from deposition of water vapor (water vapor->cloud ice) or freezing(cloud water -> cloud ice). Increasing(decreasing) qi_gen can increas(decrease) cloud ice	1.82e-6
ql_mlt	gfdl_cloud_microphys_mod	maximum value of cloud water allowed from melted cloud ice (cloud ice -> cloud water or rain). Exceedance of which will become rain. Increasing(decreasing) ql_mlt can increase(decrease) cloud water and decrease(increase) rain	2.0e-3
qs_mlt	gfdl_cloud_microphys_mod	maximum value of cloud water allowed from melted snow (snow -> cloud water or rain). Exceedance of which will become rain. Increasing(decreasing) qs_mlt can increas(decrease) cloud water and decrease (increase) rain	1.0e-6
ql0_max	gfdl_cloud_microphys_mod	threshold of cloud water to rain autoconversion (cloud water -> rain). Increasing(decreasing) ql0_max can increase(decrease) rain and decrease(increase) cloud water	2.0e-3
qi0_max	gfdl_cloud_microphys_mod	maximum value of cloud ice generated from other sources like convection. Exceedance of which will become snow. Increasing(decreasing) qi0_max can increase(decrease) cloud ice and decrease(increase) snow	1.0e-4
qi0_crt	gfdl_cloud_microphys_mod	threshold of cloud ice to snow autoconversion (cloud ice -> snow). Increasing(decreasing) qi0_crt can increase(decrease) cloud ice and decrease(increase) snow	1.0e-4
qs0_crt	gfdl_cloud_microphys_mod	threshold of snow to graupel autoconversion (snow -> graupel). Increasing(decreasing) qs0_crt can increase(decrease) snow and decrease(increase) graupel	1.0e-3
qc_crt	gfdl_cloud_microphys_mod	minimum value of cloud condensate to allow partial cloudiness. Partial cloud can only exist when total cloud condensate exceeds qc_crt	5.0e-8
c_psaci	gfdl_cloud_microphys_mod	accretion efficiency of cloud ice to snow (cloud ice -> snow). Increasing(decreasing) of c_psaci can boost(decrease) the accretion of cloud ice to snow	0.02
c_pgacs	gfdl_cloud_microphys_mod	accretion efficiency of snow to graupel (snow -> graupel). Increasing(decreasing) of c_pgacs can boost(decrease) the accretion of snow to graupel	2.0e-3
rh_inc	gfdl_cloud_microphys_mod	relative humidity increment for complete evaporation of cloud water and cloud ice	0.25
rh_inr	gfdl_cloud_microphys_mod	relative humidity increment for sublimation of snow	0.25
rh_ins	gfdl_cloud_microphys_mod	relative humidity increment for minimum evaporation of rain	0.25
rthresh	gfdl_cloud_microphys_mod	critical cloud water radius for autoconversion(cloud water->rain). Increasing(decreasing) of rthresh makes the autoconversion harder(easier)	1.0e-5
ccn_l	gfdl_cloud_microphys_mod	base CCN over land. Increasing(decreasing) ccn_l can on the one hand boost(decrease) the autoconversion of cloud water to rain, on the other hand make the autoconversion harder(easier). The unit is $cm^{-3}$	270.
ccn_o	gfdl_cloud_microphys_mod	base CCN over ocean. Increasing(decreasing) ccn_o can on the one hand boost(decrease) the autoconversion of cloud water to rain, on the other hand make the autoconversion harder(easier). The unit is $cm^{-3}$	90.
c_paut	gfdl_cloud_microphys_mod	autoconversion efficiency of cloud water to rain (cloud water -> rain). Increasing(decreasing) of c_paut can boost(decrease) the autoconversion of cloud water to rain	0.55
c_cracw	gfdl_cloud_microphys_mod	accretion efficiency of cloud water to rain (cloud water -> rain). Increasing(decreasing) of c_cracw can boost(decrease) the accretion of cloud water to rain	0.9
sat_adj0	gfdl_cloud_microphys_mod	adjust factor for condensation of water vapor to cloud water (water vapor->cloud water) and deposition of water vapor to cloud ice	0.9
use_ppm	gfdl_cloud_microphys_mod	true to use PPM fall scheme; false to use time-implicit monotonic fall scheme	.false.
use_ccn	gfdl_cloud_microphys_mod	true to compute prescribed CCN. It should be .true. when prog_ccn = .false.	.false.
mono_prof	gfdl_cloud_microphys_mod	true to turn on terminal fall with monotonic PPM scheme. This is used together with use_ppm=.true.	.true.
z_slope_liq	gfdl_cloud_microphys_mod	true to turn on vertically subgrid linear monotonic slope for autoconversion of cloud water to rain	.true.
z_slope_ice	gfdl_cloud_microphys_mod	true to turn on vertically subgrid linear monotonic slope for autoconversion of cloud ice to snow	.false.
de_ice	gfdl_cloud_microphys_mod	true to convert excessive cloud ice to snow to prevent ice over-built from other sources like convection scheme (not supported in GFS physics)	.false.
fix_negative	gfdl_cloud_microphys_mod	true to fix negative water species using nearby points	.false.
icloud_f	gfdl_cloud_microphys_mod	flag (0,1,or 2) for cloud fraction diagnostic scheme	0
irain_f	gfdl_cloud_microphys_mod	flag (0 or 1) for cloud water autoconversion to rain scheme. 0: with subgrid variability; 1: no subgrid variability	0
mp_time	gfdl_cloud_microphys_mod	time step of GFDL cloud microphysics (MP). If mp_time isn't divisible by physics time step or is larger than physics time step, the actual MP time step becomes dt/NINT[dt/MIN(dt,mp_time)]	150.
alin	gfdl_cloud_microphys_mod	parameter a in Lin et al.(1983). Constant in empirical formula for $U_R$. Increasing(decreasing) alin can boost(decrease) accretion of cloud water by rain and rain evaporation	842.
clin	gfdl_cloud_microphys_mod	parameter c in Lin et al.(1983). Constant in empirical formula for $U_S$. Increasing(decreasing) clin can boost(decrease) accretion of cloud water by snow, accretion of cloud ice by snow, snow sublimation and deposition, and snow melting	4.8
t_min	gfdl_cloud_microphys_mod	temperature threshold for instant deposition. Deposit all water vapor to cloud ice when temperature is lower than t_min	178.
t_sub	gfdl_cloud_microphys_mod	temperature threshold for sublimation. Cloud ice, snow or graupel stops(starts) sublimation when temperature is lower(higher) then t_sub	184.
mp_print	gfdl_cloud_microphys_mod	.true. to turn on GFDL cloud microphysics debugging print out. (not supported in GFS physics)	.false.
&cires_ugwp_nml
knob_ugwp_version	cires_ugwp_module	parameter selects a version of the UGWP implementation in FV3GFS-127L 0: default version delivered to EMC in Jan 2019 for implementation 1: version of UGWP under development that plans to consider the physics-based sources of NGWs (knob_ugwp_wvspec [2:4]), options for stochastic and deterministic excitation of waves (knob_ugwp_stoch), and switches between different UGWP schemes (knob_ugwp_solver)	0
knob_ugwp_doaxyz	cires_ugwp_module	parameter controls application of the momentum deposition for NGW-schemes 0: the momentum tendencies due to NGWs are calculated, but tendencies do not change the horizontal winds 1: default value; it changes the horizontal momentum tendencies and horizontal winds	1
knob_ugwp_doheat	cires_ugwp_module	parameter controls application of the heat deposition for NGW-schemes 0: the temperature tendencies due to NGWs are calculated but tendencies do not change the temperature state 1: default value; it changes the temperature tendencies and kinetic temperature	1
knob_ugwp_dokdis	cires_ugwp_module	parameter controls application of the eddy diffusion due to instability of NGWs 0: the eddy diffusion tendencies due to NGWs are calculated but tendencies do not change the model state vector 1: it computes eddy diffusion coefficient due to instability of NGWs; in UGWP v0, eddy viscosity, heat conductivity and tracer diffusion are not activated	0
knob_ugwp_solver	cires_ugwp_module	parameter controls the selection of UGWP-solvers(wave propagation, dissipation and wave breaking) for NGWs 1: represents the discrete multi-wave solver with background dissipation and linear wave saturation 2: represents the spectral deterministic solver with background dissipation and spectral saturation 3: represents the discrete multi-wave solver with the background dissipation, extension of Alexander sand Dunkerton (1999) 4: represents the spectral solver with background dissipation, extension of Doppler Spread Theory of Hines (1997)	1
knob_ugwp_ndx4lh	cires_ugwp_module	parameter controls the selection of the horizontal wavenumber(wavelength) for NGW schemes 1: selects the $4xdx$ sub-grid wavelength, where dx is the horizontal resolution of the model configuration (C96-400km; C768-52km)	2
knob_ugwp_wvspec	cires_ugwp_module	four-dimensional array defines number of waves in each arimuthal propagation (as defined by knob_ugwp_azdir) for GWs excited due to the following four sources: (1) sub-grid orography (knob_ugwp_wvspec[1]=1), (2) convective (knob_ugwp_wvspec[2]=25), (3) frontal (knob_ugwp_wvspec[3]=25) activity, (4) knob_ugwp_wvspec[4] represents number of wave excited by dynamical imbalances that may mimic both convective and front-jet mechanisms of GW triggering. In UGWP v0, first two elements of the array, knob_ugwp_wvspec(1:2), control number of waves for stationary (OGW) and nonstationary waves (NGWs).	1,32,32,32
knob_ugwp_azdir	cires_ugwp_module	four-dimensional array that defines number of azimuths for propagation of GWs triggered by four types of physics-based sources (orography, convection, front-jets, and dynamical imbalance). In UGWP v0, first two elements of the array, knob_ugwp_azdir(1:2), control number of azimuths for OGW and NGWs respectively.	2,4,4,4
knob_ugwp_stoch	cires_ugwp_module	four-dimensional array that control stochastic selection of GWs triggered by four types of physics-based sources. Default values:0,0,0,0 - reflect determinstic selection of GW parameters without stochastic selection	0,0,0,0
knob_ugwp_effac	cires_ugwp_module	four-dimensional array that control efficiency of GWs triggerd by four types of physics-based sources. Default values: 1.,1.,1.,1. - reflect that calculated GW-tendencies will be applied for the model state.	1.,1.,1.,1.
launch_level	cires_ugwp_module	parameter has been introduced by EMC during implementation. It defines the interface model level from the surface at which NGWs are launched. Default value for FV3GFS-64L, launch_level=25 and for FV3GFS-128L, launch_level=52.	55