GFDL Cloud Microphysics Module

This is cloud microphysics package for GFDL global cloud resolving model. The algorithms are originally derived from Lin et al. (1983) [107]. most of the key elements have been simplified/improved. This code at this stage bears little to no similarity to the original Lin MP in zetac. therefore, it is best to be called GFDL microphysics (GFDL MP) . More...

Detailed Description

Author

Shian-Jiann Lin, Linjiong Zhou

The module contains the GFDL cloud microphysics (Chen and Lin (2013) [31] ). The module is paired with GFDL In-Core Fast Saturation Adjustment Module, which performs the "fast" processes.

The subroutine executes the full GFDL cloud microphysics.

Argument Table

local_name	standard_name	long_name	units	type	dimensions	kind	intent	optional
levs	vertical_dimension	number of vertical levels	count	integer	()		in	False
im	horizontal_loop_extent	horizontal loop extent	count	integer	()		in	False
con_g	gravitational_acceleration	gravitational acceleration	m s-2	real	()	kind_phys	in	False
con_fvirt	ratio_of_vapor_to_dry_air_gas_constants_minus_one	rv/rd - 1 (rv = ideal gas constant for water vapor)	none	real	()	kind_phys	in	False
con_rd	gas_constant_dry_air	ideal gas constant for dry air	J kg-1 K-1	real	()	kind_phys	in	False
frland	land_area_fraction_for_microphysics	land area fraction used in microphysics schemes	frac	real	(horizontal_dimension)	kind_phys	in	False
garea	cell_area	area of grid cell	m2	real	(horizontal_dimension)	kind_phys	in	False
islmsk	sea_land_ice_mask	sea/land/ice mask (=0/1/2)	flag	integer	(horizontal_dimension)		in	False
gq0	water_vapor_specific_humidity_updated_by_physics	water vapor specific humidity updated by physics	kg kg-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
gq0_ntcw	cloud_condensed_water_mixing_ratio_updated_by_physics	cloud condensed water mixing ratio updated by physics	kg kg-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
gq0_ntrw	rain_water_mixing_ratio_updated_by_physics	moist mixing ratio of rain updated by physics	kg kg-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
gq0_ntiw	ice_water_mixing_ratio_updated_by_physics	moist mixing ratio of cloud ice updated by physics	kg kg-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
gq0_ntsw	snow_water_mixing_ratio_updated_by_physics	moist mixing ratio of snow updated by physics	kg kg-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
gq0_ntgl	graupel_mixing_ratio_updated_by_physics	moist ratio of mass of graupel to mass of dry air plus vapor (without condensates) updated by physics	kg kg-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
gq0_ntclamt	cloud_fraction_updated_by_physics	cloud fraction updated by physics	frac	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
gt0	air_temperature_updated_by_physics	air temperature updated by physics	K	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
gu0	x_wind_updated_by_physics	zonal wind updated by physics	m s-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
gv0	y_wind_updated_by_physics	meridional wind updated by physics	m s-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
vvl	omega	layer mean vertical velocity	Pa s-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
prsl	air_pressure	mean layer pressure	Pa	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
phii	geopotential_at_interface	geopotential at model layer interfaces	m2 s-2	real	(horizontal_dimension, vertical_dimension_plus_one)	kind_phys	in	False
del	air_pressure_difference_between_midlayers	air pressure difference between mid-layers	Pa	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
rain0	lwe_thickness_of_explicit_rain_amount	explicit rain on physics timestep	m	real	(horizontal_dimension)	kind_phys	out	False
ice0	lwe_thickness_of_ice_amount	ice fall on physics timestep	m	real	(horizontal_dimension)	kind_phys	out	False
snow0	lwe_thickness_of_snow_amount	snow fall on physics timestep	m	real	(horizontal_dimension)	kind_phys	out	False
graupel0	lwe_thickness_of_graupel_amount	graupel fall on physics timestep	m	real	(horizontal_dimension)	kind_phys	out	False
prcp0	lwe_thickness_of_explicit_precipitation_amount	explicit precipitation (rain, ice, snow, graupel) on physics timestep	m	real	(horizontal_dimension)	kind_phys	out	False
sr	ratio_of_snowfall_to_rainfall	snow ratio: ratio of snow to total precipitation	frac	real	(horizontal_dimension)	kind_phys	out	False
dtp	time_step_for_physics	physics timestep	s	real	()	kind_phys	in	False
hydrostatic	flag_for_hydrostatic_solver	flag indicating hydrostatic solver	flag	logical	()		in	False
phys_hydrostatic	flag_for_hydrostatic_heating_from_physics	flag indicating hydrostatic heating from physics	flag	logical	()		in	False
lradar	flag_for_radar_reflectivity	flag for radar reflectivity	flag	logical	()		in	False
refl_10cm	radar_reflectivity_10cm	instantaneous refl_10cm	dBZ	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
reset	flag_reset_maximum_hourly_fields	flag for resetting maximum hourly fields	flag	logical	()		in	False
effr_in	flag_for_cloud_effective_radii	flag for cloud effective radii calculations in GFDL microphysics		logical	()		in	False
rew	effective_radius_of_stratiform_cloud_liquid_water_particle_in_um	eff. radius of cloud liquid water particle in micrometer	um	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
rei	effective_radius_of_stratiform_cloud_ice_particle_in_um	eff. radius of cloud ice water particle in micrometer	um	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
rer	effective_radius_of_stratiform_cloud_rain_particle_in_um	effective radius of cloud rain particle in micrometers	um	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
res	effective_radius_of_stratiform_cloud_snow_particle_in_um	effective radius of cloud snow particle in micrometers	um	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
reg	effective_radius_of_stratiform_cloud_graupel_particle_in_um	eff. radius of cloud graupel particle in micrometer	um	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
errmsg	ccpp_error_message	error message for error handling in CCPP	none	character	()	len=*	out	False
errflg	ccpp_error_flag	error flag for error handling in CCPP	flag	integer	()		out	False

Collaboration diagram for GFDL Cloud Microphysics Module:

Modules
	GFDL Cloud MP modules
	This module contains the column GFDL Cloud microphysics scheme.
real function	gfdl_cloud_microphys_mod::acr3d (v1, v2, q1, q2, c, cac, rho)
	The function is an accretion function (Lin et al.(1983) [107] ) More...
real function	gfdl_cloud_microphys_mod::smlt (tc, dqs, qsrho, psacw, psacr, c, rho, rhofac)
	Melting of snow function (Lin et al.(1983) [107]) note: psacw and psacr must be calc before smlt is called. More...