GFS Stochastics Physics Module

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Detailed Description

Argument Table

local_name	standard_name	long_name	units	type	dimensions	kind	intent	optional
im	horizontal_loop_extent	horizontal loop extent	count	integer	()		in	False
km	vertical_dimension	number of vertical levels	count	integer	()		in	False
do_sppt	flag_for_stochastic_surface_physics_perturbations	flag for stochastic surface physics perturbations	flag	logical	()		in	False
use_zmtnblck	flag_for_mountain_blocking	flag for mountain blocking	flag	logical	()		in	False
do_shum	flag_for_stochastic_shum_option	flag for stochastic shum option	flag	logical	()		in	False
do_skeb	flag_for_stochastic_skeb_option	flag for stochastic skeb option	flag	logical	()		in	False
zmtnblck	level_of_dividing_streamline	level of the dividing streamline	none	real	(horizontal_dimension)	kind_phys	in	False
sppt_wts	weights_for_stochastic_sppt_perturbation	weights for stochastic sppt perturbation	none	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
skebu_wts	weights_for_stochastic_skeb_perturbation_of_x_wind	weights for stochastic skeb perturbation of x wind	none	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
skebv_wts	weights_for_stochastic_skeb_perturbation_of_y_wind	weights for stochastic skeb perturbation of y wind	none	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
shum_wts	weights_for_stochastic_shum_perturbation	weights for stochastic shum perturbation	none	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
sppt_wts_inv	weights_for_stochastic_sppt_perturbation_flipped	weights for stochastic sppt perturbation, flipped	none	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
skebu_wts_inv	weights_for_stochastic_skeb_perturbation_of_x_wind_flipped	weights for stochastic skeb perturbation of x wind, flipped	none	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
skebv_wts_inv	weights_for_stochastic_skeb_perturbation_of_y_wind_flipped	weights for stochastic skeb perturbation of y wind, flipped	none	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
shum_wts_inv	weights_for_stochastic_shum_perturbation_flipped	weights for stochastic shum perturbation, flipped	none	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	False
diss_est	dissipation_estimate_of_air_temperature_at_model_layers	dissipation estimate model layer mean temperature	K	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
ugrs	x_wind	zonal wind	m s-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
vgrs	y_wind	meridional wind	m s-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
tgrs	air_temperature	model layer mean temperature	K	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
qgrs	water_vapor_specific_humidity	water vapor specific humidity	kg kg-1	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	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
gt0	air_temperature_updated_by_physics	temperature updated by physics	K	real	(horizontal_dimension, vertical_dimension)	kind_phys	inout	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
dtdtr	tendency_of_air_temperature_due_to_radiative_heating_on_physics_time_step	temp. change due to radiative heating per time step	K	real	(horizontal_dimension, vertical_dimension)	kind_phys	in	False
rain	lwe_thickness_of_precipitation_amount_on_dynamics_timestep	total rain at this time step	m	real	(horizontal_dimension)	kind_phys	in	False
rainc	lwe_thickness_of_convective_precipitation_amount_on_dynamics_timestep	convective rain at this time step	m	real	(horizontal_dimension)	kind_phys	in	False
tprcp	nonnegative_lwe_thickness_of_precipitation_amount_on_dynamics_timestep	total precipitation amount in each time step	m	real	(horizontal_dimension)	kind_phys	inout	False
totprcp	accumulated_lwe_thickness_of_precipitation_amount	accumulated total precipitation	m	real	(horizontal_dimension)	kind_phys	inout	False
cnvprcp	cumulative_lwe_thickness_of_convective_precipitation_amount	cumulative convective precipitation	m	real	(horizontal_dimension)	kind_phys	inout	False
totprcpb	accumulated_lwe_thickness_of_precipitation_amount_in_bucket	accumulated total precipitation in bucket	m	real	(horizontal_dimension)	kind_phys	inout	False
cnvprcpb	cumulative_lwe_thickness_of_convective_precipitation_amount_in_bucket	cumulative convective precipitation in bucket	m	real	(horizontal_dimension)	kind_phys	inout	False
cplflx	flag_for_flux_coupling	flag controlling cplflx collection (default off)	flag	logical	()		in	False
rain_cpl	lwe_thickness_of_precipitation_amount_for_coupling	total rain precipitation	m	real	(horizontal_dimension)	kind_phys	inout	False
snow_cpl	lwe_thickness_of_snow_amount_for_coupling	total snow precipitation	m	real	(horizontal_dimension)	kind_phys	inout	False
drain_cpl	tendency_of_lwe_thickness_of_precipitation_amount_for_coupling	change in rain_cpl (coupling_type)	m	real	(horizontal_dimension)	kind_phys	in	False
dsnow_cpl	tendency_of_lwe_thickness_of_snow_amount_for_coupling	change in show_cpl (coupling_type)	m	real	(horizontal_dimension)	kind_phys	in	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

GFS_stochastics_run General Algorithm

This is the GFS stochastic physics driver. Routines are called prior to radiation and physics steps to handle:

1. sets up various time/date variables
2. sets up various triggers
3. defines random seed indices for radiation (in a reproducible way)
4. interpolates coefficients for prognostic ozone calculation
5. performs surface data cycling via the GFS gcycle routine

Functions/Subroutines
subroutine	gfs_stochastics::gfs_stochastics_run (im, km, do_sppt, use_zmtnblck, do_shum, do_skeb, zmtnblck, sppt_wts, skebu_wts, skebv_wts, shum_wts, sppt_wts_inv, skebu_wts_inv, skebv_wts_inv, shum_wts_inv, diss_est, ugrs, vgrs, tgrs, qgrs, gu0, gv0, gt0, gq0, dtdtr, rain, rainc, tprcp, totprcp, cnvprcp, totprcpb, cnvprcpb, cplflx, rain_cpl, snow_cpl, drain_cpl, dsnow_cpl, errmsg, errflg)