LCZ data loading abnormality

[nanyin]

Hello! When I use the clgc_lcz map, a large number of prompts appear in the rsl.error file, such as:

"WARNING, THE URBAN FRACTION WILL BE READ FROM URBPARM.TBL
USING DEFAULT URBAN MORPHOLOGY
WARNING, FRC_URB2D = 0 BUT IVGTYP IS URBAN
WARNING, THE URBAN FRACTION WILL BE READ FROM URBPARM.TBL
USING DEFAULT URBAN MORPHOLOGY
WARNING, FRC_URB2D = 0 BUT IVGTYP IS URBAN
WARNING, THE URBAN FRACTION WILL BE READ FROM URBPARM.TBL
USING DEFAULT URBAN MORPHOLOGY

USING DEFAULT URBAN MORPHOLOGY"

Does this mean that my LCZ and urban module are not loaded correctly? I have attached my namelist file for reference.

Additionally, I have another question: currently, I am using a public LCZ dataset, but I want to use my own LCZ dataset. How can I load my custom LCZ data into WRF?

I am using WPS4.5 and WRF4.5.2.

 

[Ming Chen]

These warning messages tell that there might be missing information or inconsistency in the input data, mostly in the static input. In this case, the model tries to use the default values. This doesn't mean that something is wrong. One example is that, URBAN FRACTION is only available over CONUS and from NLCD data. When you use other datasets as input or your domain covers other areas, this information is missing and WRF assigns the default value to URBAN FRACTION.

To use your own LCZ data, you need to

(1) create 'tile' data in specific geogrid format. Please see instructions at Chapter 3: WRF Standard Initialization

(2) edit GEOGRID.TBL to make WPS able to process your data. Details can be found at https://www2.mmm.ucar.edu/wrf/users/tutorial/presentation_pdfs/201707/wps_advanced.pdf