The model atmosphere are described by a two-dimensional version of the
anelastic system of Ogura and Phillips (1962).
The effect of planetary rotation is not considered.
(A.1), (A.2) are the horizontal and
vertical component of equation of motion, respectively.
(A.3) is the continuity equation
and (A.4) is the
are horizontal, vertical and time
are horizontal and vertical wind velocity, and
are potential temperature and
nondimensional pressure function deviation from those of basic
are density, potential temperature and
temperature in basic state.
is gravitational acceleration whose value
is equal to 3.72 msec-2.
is radiative heating (cooling) rate per
unit mass, which is described in appendix A.d in detail.
is heating rate per unit mass owing to
dissipation of turbulent kinetic energy, which is given by turbulent parameterization.
in equation (A.1) 〜 (A.4)
represents the turbulent diffusion owing to subgrid scale turbulent
mixing as follows.
K is turbulent diffusion coefficient which
is calculated by (A.9) and (A.10).
The nondimensional pressure function and potential temperature are
defined as follows.
where and are pressure
and that in basic state, is reference
pressure (= 7 hPa), , is specific
heat of constant pressure per unit mass and is
atmospheric gas constant per unit mass.
The values of and are set to be
those of CO2 (734.9
The basic state atmospheric structure is calculated by using
the hydrostatic equation and euation of state for ideal gas as follows.
The perturbation of nondimensional pressure function is diagnosed
by using the following equation which is derived
from (A.1) to (A.3)