BEGIN DATA
  DATE    = 20060116_18;                                 ! Date for case study
  INP_DIR = /lhome/sprenger/PV_Inversion_Tool/real/inp;  ! Input directory 
  RUN_DIR = /lhome/sprenger/PV_Inversion_Tool/real/run;  ! Run directory
  OUT_DIR = /lhome/sprenger/PV_Inversion_Tool/real/out;  ! Output directory
END DATA

BEGIN GRID
  GEO_XMIN = -180.;     ! Geographical grid in zonal direction
  GEO_NX   =  361 ;    
  GEO_DX   =    1.;
  GEO_YMIN =    0.;     ! Geographical grid in meridional direction
  GEO_NY   =   91 ;
  GEO_DY   =    1.;
  GEO_ZMIN =    0.;     ! Vertical levels ( ZMIN and DZ in [m] )
  GEO_NZ   =  125 ;
  GEO_DZ   =  200.;
  ROT_NX   =  250 ;     ! Rotated grid ( DX and DY in [deg] )
  ROT_NY   =  250 ;  
  ROT_DX   =  0.25;     
  ROT_DY   =  0.25;
  CLON     =  -65.;     ! Longitude, latitude [deg] and angle of rotated grid
  CLAT     =   45.;     
  CROT     =    0.;     
  REF_R    =  500.;    ! Radius for reference radius; -1 if whole domain)
END GRID

BEGIN ANOMALY
  BOX_XMIN = -1200.;    ! Box where to apply the digital filter
  BOX_XMAX =  1200.;
  BOX_YMIN = -1200.;
  BOX_YMAX =  1200.;
  BOX_ZMIN =  2000.;
  BOX_ZMAX = 10000.;
  NFILTER  =     5 ;    ! Number of filter iterations;
  BOUND_XY =   500.;    ! Transition zone for horizontal boundaries ( in [km] )
  BOUND_Z  =   500.;    ! Transition zone for vertical boundaries ( in [m] )
END ANOMALY

BEGIN NUMERICS
  ALPHA     =    0.5;    ! Adjustment factor after one iteration step
  NOFITER   =      6;    ! Number of "external" iterations
  SAVEITER  =     no;    ! Flag whether to save iteration steps 
  TRANS_XY  =   500.;    ! Smooth transition zone (in km) for back-insertion into P file
  PS_CHANGE =    0.0;    ! Allow (1.0), do not allow (0.0), or fractionally allow (0<x<1) changes in surface pressure
END NUMERICS