Contact: Isaac Held
Reviewers: Peter Phillipps
A spectral transform model for the shallow water equations on the sphere
Integrates the shallow water equations for hydrostatic flow in a thin layer of homogeneous fluid on the sphere, using the spectral transform technique. Also allows for the inclusion of a passive tracer advected by the spectral advection algorithm as the vorticity, and a gridpoint tracer advected with a finite volume algorithm on the transform grid. The default experiment is forced by a "monsoonal" mass source, starting from a state of rest. For a full description of the model and algorithms used, see shallow.ps The interfaces in this module are the generic intefaces required by the main program that can be used to drive various idealized atmospheric models within FMS. Model resolution and related parameters are set in namelists within the modules shallow_xxx.
fms_mod
constants_mod
transforms_mod
time_manager_mod
diag_manager_mod
shallow_dynamics_mod
shallow_physics_mod
shallow_diagnostics_mod
use atmosphere_mod [,only: atmosphere_init,
atmosphere,
atmosphere_end]
There are no public data types
subroutine atmosphere_init. Initializes the model. subroutine atmosphere. Integrates forward one time step subroutine atmosphere_end. Terminates model, cleaning up memory and finalizing diagnostics.subroutine atmosphere_init(Time_init, Time, Time_step) input: type(time_type) :: Time_init -- Initial model time type(time_type) :: Time -- Model time type(time_type) :: Time_step -- Time step When Time=Time_init, the first time step is a forward step rather than leap frog because a cold start is assumed. The FMS main program that runs the solo atmospheric models obtains Time_init from the diag_table and Time from its namelist.
subroutine atmosphere(Time) input: type(time_type) :: Time -- Model time Integrates forward one time step
subroutine atmosphere_end No calling arguments. Terminates model, cleaning up memory and finalizing diagnostics
&atmosphere_nml print_interval, integer : time interval in seconds between prints of global mean energy and enstrophy to standard output
Fatal error message if subroutine atmosphere or atmosphere_end is called prior to atmosphere_init.