The Intermediate Complexity Atmospheric Research model (ICAR): module_lsm_simple Module Reference

The Intermediate Complexity Atmospheric Research model (ICAR)

A computationally efficient atmospheric model for downscaling.

All Classes Files Functions Variables

NOTE: CODE IS INCOMPLETE AND WILL NOT WORK More...

Public Member Functions
subroutine, public	lsm_simple_init (domain, options)

subroutine, public	lsm_simple (theta, pii, qv, rain, snow, p, swdown, lwdown, wind, sensible_heat, latent_heat, ground_heat, tskin, tsoil, vwc, swe, options, dt)

Private Member Functions
subroutine	calc_ground_heat (tsoil, tskin, ground_heat, dt)

subroutine	calc_exchange_coefficient (wind, tskin, airt)

subroutine	calc_sensible_heat (tskin, airt, wind, sensible_heat)

subroutine	calc_latent_heat (vwc, tskin, qv, wind, latent_heat)

subroutine	add_rain (vwc, rain, dt)

Private Attributes
real	albedo

real	zo

real	vegfrac

real	emissivity

real	tdeep

real, dimension(:,:), allocatable	base_exchange_term

real, dimension(:,:), allocatable	exchange_c

real, dimension(:,:), allocatable	z_atm

real, dimension(:,:), allocatable	lnz_atm_term

real, dimension(:,:), allocatable	ri

real, dimension(:,:), allocatable	airt_m

real	soil_dz

real	soil_thermal_conductivity

real	soil_density

real	soil_specific_heat

real	damping_time

real	vwc_min

real	vwc_max

real	soil_hydro_conductivity

real	soil_hydro_dz

real, parameter	kappa =0.4

Detailed Description

NOTE: CODE IS INCOMPLETE AND WILL NOT WORK

Very simple land surface model code

Rain is partitioned into infiltration and runoff Snow is accumulated on the surface, then melts, runsoff, or sublimates Soil moisture is permitted to be lost to ET or subsurface flow

ET, Sensible Heat Flux, and Longwave are partitioned using Penman Monteith.

The entry point to the code is lsm_simple.

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 High level routine descriptions / purpose
   lsm_simple         - loops over X,Y grid cells, calls a, b, c

 Driver inputs: p,th,pii,rho,qv,rain,snow,dt,dz
   p   = pressure                      - 3D - input  - Pa     - (nx,nz,ny)
   th  = potential temperature         - 3D - in/out - K      - (nx,nz,ny)
   pii = inverse exner function        - 3D - input  - []     - (nx,nz,ny)
   rho = air density                   - 3D - input  - kg/m^3 - (nx,nz,ny)
   qv  = specific humidity             - 3D - in/out - kg/kg  - (nx,nz,ny)
   rain= rainfall                      - 2D - input  - mm     - (nx,ny)
   snow= snowfall                      - 2D - input  - mm     - (nx,ny)
   wind= wind speed                    - 2D - input  - m/s    - (nx,ny)
   swdown = shortwave down at surface - 2D - input  - W/m^2   - (nx,ny)
   lwdown = longwave down at surface  - 2D - input  - W/m^2   - (nx,ny)
   dt = time step                      - 0D - input  - seconds    - scalar

Author: Ethan Gutmann (gutma.nosp@m.nn@u.nosp@m.car.e.nosp@m.du)

Member Function/Subroutine Documentation

subroutine module_lsm_simple::add_rain	(	real, dimension(:,:,:), intent(inout)	vwc,
		real, dimension(:,:), intent(in)	rain,
		real, intent(in)	dt
	)

private

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subroutine module_lsm_simple::calc_exchange_coefficient	(	real, dimension(:,:), intent(in)	wind,
		real, dimension(:,:), intent(in)	tskin,
		real, dimension(:,:), intent(in)	airt
	)

private

subroutine module_lsm_simple::calc_ground_heat	(	real, dimension(:,:,:), intent(inout)	tsoil,
		real, dimension(:,:), intent(in)	tskin,
		real, dimension(:,:), intent(out)	ground_heat,
		real, intent(in)	dt
	)

private

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subroutine module_lsm_simple::calc_latent_heat	(	real, dimension(:,:,:), intent(in)	vwc,
		real, dimension(:,:), intent(in)	tskin,
		real, dimension(:,:,:), intent(in)	qv,
		real, dimension(:,:), intent(in)	wind,
		real, dimension(:,:), intent(out)	latent_heat
	)

private

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subroutine module_lsm_simple::calc_sensible_heat	(	real, dimension(:,:), intent(in)	tskin,
		real, dimension(:,:), intent(in)	airt,
		real, dimension(:,:), intent(in)	wind,
		real, dimension(:,:), intent(out)	sensible_heat
	)

private

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subroutine, public module_lsm_simple::lsm_simple	(	real, dimension(:,:,:), intent(inout)	theta,
		real, dimension(:,:,:), intent(in)	pii,
		real, dimension(:,:,:), intent(inout)	qv,
		real, dimension(:,:), intent(in)	rain,
		real, dimension(:,:), intent(in)	snow,
		real, dimension(:,:,:), intent(in)	p,
		real, dimension(:,:), intent(in)	swdown,
		real, dimension(:,:), intent(in)	lwdown,
		real, dimension(:,:), intent(in)	wind,
		real, dimension(:,:), intent(inout)	sensible_heat,
		real, dimension(:,:), intent(inout)	latent_heat,
		real, dimension(:,:), intent(inout)	ground_heat,
		real, dimension(:,:), intent(inout)	tskin,
		real, dimension(:,:,:), intent(inout)	tsoil,
		real, dimension(:,:,:), intent(inout)	vwc,
		real, dimension(:,:), intent(inout)	swe,
		type(options_type), intent(in)	options,
		real, intent(in)	dt
	)

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subroutine, public module_lsm_simple::lsm_simple_init	(	type(domain_type), intent(in)	domain,
		type(options_type), intent(in)	options
	)

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Member Data Documentation

real, dimension(:,:), allocatable module_lsm_simple::airt_m

private

real module_lsm_simple::albedo

private

real, dimension(:,:), allocatable module_lsm_simple::base_exchange_term

private

real module_lsm_simple::damping_time

private

real module_lsm_simple::emissivity

private

real, dimension(:,:), allocatable module_lsm_simple::exchange_c

private

real, parameter module_lsm_simple::kappa =0.4

private

real, dimension(:,:), allocatable module_lsm_simple::lnz_atm_term

private

real, dimension(:,:), allocatable module_lsm_simple::ri

private

real module_lsm_simple::soil_density

private

real module_lsm_simple::soil_dz

private

real module_lsm_simple::soil_hydro_conductivity

private

real module_lsm_simple::soil_hydro_dz

private

real module_lsm_simple::soil_specific_heat

private

real module_lsm_simple::soil_thermal_conductivity

private

real module_lsm_simple::tdeep

private

real module_lsm_simple::vegfrac

private

real module_lsm_simple::vwc_max

private

real module_lsm_simple::vwc_min

private

real, dimension(:,:), allocatable module_lsm_simple::z_atm

private

real module_lsm_simple::zo

private

The documentation for this module was generated from the following file:

physics/lsm_simple.f90