Units of west_east and south_north coordinates?

[regi_rock]

Hi all,

I'm a new WRF user and want to know the values in km of the gridpoints in some WRF output I am working with. I noticed that much of the output data is in coordinates of 'west_east' and 'south_north'. However, I have been unable to figure out whether these coordinates simply indicate the number of gridpoints in the west-east and south-north directions, or whether they contain the values in km of the gridpoints used in the model.

Thanks for the help in advance!

 

[Ming Chen]

'east-west' and 'north-south' indicate the number of grid points in the east-wets and north-south directions. Combined with 'dx' and 'dy' (grid-interval), you can derive the values in km by (east-west - 1) *dx and (north-south -1 ) * dy.
For the grid structure of WRF, please take a look at the document here:

https://www2.mmm.ucar.edu/wrf/users/docs/technote/v4_technote.pdf