init_variables_2d - initialise 2D related stuff.

INTERFACE:

    subroutine init_variables_2d(runtype)
    IMPLICIT NONE

DESCRIPTION:

Allocates memory (unless STATIC is set) for 2D related fields, by an include statement. Furthermore all public 2D variables are initialised to zero. Those are listed in table 1 on page .

Table 1: Public 2D variables.

z	sea surface elevation in T-point	[m]
U	$x$ component of transport in U-point	[m$^2$s$^{-1}$]
DU	water depth in U-point	[m]
fU	Coriolis term for $V$-equation in V-point	[m$^2$s$^{-2}$]
SlUx	slow term for $U$-equation in U-point	[m$^2$s$^{-2}$]
Slru	slow bottom friction for $U$-equation in U-point	[m$^2$s$^{-2}$]
V	$y$ component of transport in V-point	[m$^2$s$^{-1}$]
DV	water depth in V-point	[m]
fV	Coriolis term for $U$-equation in U-point	[m$^2$s$^{-2}$]
SlVx	slow term for $V$-equation in V-point	[m$^2$s$^{-2}$]
Slrv	slow bottom friction for $V$-equation in V-point	[m$^2$s$^{-2}$]
Uint	$x$-component of mean transport in U-point	[m$^2$s$^{-1}$]
Vint	$y$-component of mean transport in V-point	[m$^2$s$^{-1}$]
UEx	sum of explicit terms for for $U$-equation in U-point	[m$^2$s$^{-2}$]
VEx	sum of explicit terms for for $V$-equation in V-point	[m$^2$s$^{-2}$]
ru	bottom friction for $U$-equation in U-point	[m$^2$s$^{-2}$]
rv	bottom friction for $V$-equation in V-point	[m$^2$s$^{-2}$]
res_du	residual depth in U-point	[m]
res_u	$x$-component of residual transport in U-point	[m$^2$s$^{-1}$]
res_dv	residual depth in V-point	[m]
res_v	$y$-component of residual transport in V-point	[m$^2$s$^{-1}$]

INPUT PARAMETERS:

    integer, intent(in)                 :: runtype

LOCAL VARIABLES:

    integer                   :: rc