Hello,
We are moving to new forecast grids and I am having a bit of trouble changing the header data in ARLDATA.CFG to get the WRF files to process. I was able to make changes to one domain with no trouble but the larger domain is significantly different from the old version.
My question is: What values need to be changed other than 'numb x pt', 'numb of y pt'?
The old ARLDATA.CFG file header is:
Model Type: AWRF
Grid Numb: 99
Vert Coord: 1
Pole Lat: 0.00
Pole Lon: -157.50
Ref Lat: 10.05
Ref Lon: -157.50
Grid Size: 3.00
Orientation: 0.00
Cone Angle: 10.05
Sync X Pt: 110.50
Sync Y Pt: 85.50
Sync Lat: 20.54
Sync Lon: -157.50
Reserved: 0.00
Numb X pt: 220
Numb Y pt: 170
Numb Levels: 40
which is associated with WRF header data:
:WEST-EAST_PATCH_START_UNSTAG = 1 ;
:WEST-EAST_PATCH_END_UNSTAG = 220 ;
:WEST-EAST_PATCH_START_STAG = 1 ;
:WEST-EAST_PATCH_END_STAG = 221 ;
:SOUTH-NORTH_PATCH_START_UNSTAG = 1 ;
:SOUTH-NORTH_PATCH_END_UNSTAG = 170 ;
:SOUTH-NORTH_PATCH_START_STAG = 1 ;
:SOUTH-NORTH_PATCH_END_STAG = 171 ;
:BOTTOM-TOP_PATCH_START_UNSTAG = 1 ;
:BOTTOM-TOP_PATCH_END_UNSTAG = 39 ;
:BOTTOM-TOP_PATCH_START_STAG = 1 ;
:BOTTOM-TOP_PATCH_END_STAG = 40 ;
:GRID_ID = 2 ;
:PARENT_ID = 1 ;
:I_PARENT_START = 104 ;
:J_PARENT_START = 113 ;
:PARENT_GRID_RATIO = 5 ;
:DT = 15.f ;
:CEN_LAT = 20.53873f ;
:CEN_LON = -157.5f ;
:TRUELAT1 = 20.f ;
:TRUELAT2 = 0.f ;
:MOAD_CEN_LAT = 19.99999f ;
:STAND_LON = -157.5f ;
:POLE_LAT = 90.f ;
:POLE_LON = 0.f ;
and the new ARLDATA.CFG file header is:
Model Type: AWRF
Grid Numb: 99
Vert Coord: 1
Pole Lat: 0.00
Pole Lon: -157.50
Ref Lat: 10.05
Ref Lon: -157.50
Grid Size: 4.50
Orientation: 0.00
Cone Angle: 10.05
Sync X Pt: 110.50
Sync Y Pt: 85.50
Sync Lat: 20.54
Sync Lon: -157.50
Reserved: 0.00
Numb X pt: 451
Numb Y pt: 451
Numb Levels: 40
which is associated with WRF header data:
:WEST-EAST_PATCH_START_UNSTAG = 1 ;
:WEST-EAST_PATCH_END_UNSTAG = 450 ;
:WEST-EAST_PATCH_START_STAG = 1 ;
:WEST-EAST_PATCH_END_STAG = 451 ;
:SOUTH-NORTH_PATCH_START_UNSTAG = 1 ;
:SOUTH-NORTH_PATCH_END_UNSTAG = 450 ;
:SOUTH-NORTH_PATCH_START_STAG = 1 ;
:SOUTH-NORTH_PATCH_END_STAG = 451 ;
:BOTTOM-TOP_PATCH_START_UNSTAG = 1 ;
:BOTTOM-TOP_PATCH_END_UNSTAG = 39 ;
:BOTTOM-TOP_PATCH_START_STAG = 1 ;
:BOTTOM-TOP_PATCH_END_STAG = 40 ;
:GRID_ID = 1 ;
:PARENT_ID = 0 ;
:I_PARENT_START = 1 ;
:J_PARENT_START = 1 ;
:PARENT_GRID_RATIO = 1 ;
:CEN_LAT = 19.99999f ;
:CEN_LON = -157.5f ;
:TRUELAT1 = 20.f ;
:TRUELAT2 = 0.f ;
:MOAD_CEN_LAT = 19.99999f ;
:STAND_LON = -157.5f ;
:POLE_LAT = 90.f ;
:POLE_LON = 0.f ;
arw2arl
Re: arw2arl
The arw2arl program should pick up grid information from the header of a WRF output file to process the data. Please delete the old ARLDATA.CFG and run conversion program again.
If you still get error, please post the error message.
If you still get error, please post the error message.