Block GRID

This block defines the grid variables needed by the SetDbs and FALL3D tasks

1. HORIZONTAL_MAPPING = (options)
   • Horizontal mapping
   • Input options:
     • CARTESIAN: Cartesian mapping
     • SPHERICAL: Spherical mapping
2. VERTICAL_MAPPING = (options)
   • Vertical mapping
   • Input options:
     • SIGMA_NO_DECAY: Terrain following levels with no decay
     • SIGMA_LINEAR_DECAY: Terrain following levels with linear decay from surface to the flat top
     • SIGMA_EXPONENTIAL_DECAY: Terrain following levels with exponential decay from surface to the flat top
3. LONMIN = (float)
   • West longitude in decimal degrees of the domain
4. LONMAX = (float)
   • East longitude in decimal degrees of the domain
5. LATMIN = (float)
   • South latitude in decimal degrees of the domain
6. LATMAX = (float)
   • North latitude in decimal degrees of the domai
7. NX = (options)
   • Define the number of grid cells or resolution along dimension x
   • Input options:
     • (integer): Number of grid cells (mass points) along x
     • RESOLUTION (float): Resolution (grid size) along x
8. NY = (options)
   • Define the number of grid cells or resolution along dimension y
   • Input options:
     • (integer): Number of grid cells (mass points) along y
     • RESOLUTION (float): Resolution (grid size) along y
9. NZ = (integer)
   • Define the number of grid cells (mass points) along dimension z
10. ZMAX_(M) = (float)
    • Top height of the computational domain in meters
11. SIGMA_VALUES = (float_list)
    • List of values of sigma coordinate in the range (0,1). The list size should be less or equal than NZ+1
    • Optional
    • Note: If not present, uniform distribution of vertical layers is assumed