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'WARNING, THE URBAN FRACTION WILL BE READ FROM URBPARM.TBL' occurred.

This is weird. You only need to modify the roof albedo in URBPARM_LCZ.TBL. Which urban physics did you use? Could you please also attach your urban fraction map and land type (with LCZ) map?
Thanks for your response!

I am currently using the following configuration:
&physics
use_wudapt_lcz = 1,
mp_physics = 6, 6,
cu_physics = 1, 0,
ra_lw_physics = 1, 1,
ra_sw_physics = 1, 1,
bl_pbl_physics = 8, 8,
sf_sfclay_physics = 1, 1,
sf_surface_physics = 2, 2,
radt = 15, 15,
bldt = 0, 0,
cudt = 0, 0,
icloud = 1,
num_land_cat = 61,
sf_urban_physics = 3, 3,
fractional_seaice = 1,
/

I have also attached the land type map for reference.

Let me know if you need any further details. Thanks in advance!
 

Attachments

  • 屏幕截图 2025-02-05 150212.png
    屏幕截图 2025-02-05 150212.png
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OK, I am not sure what is going on here, but could you please:
1. try to doubling the albedo for roof, road, and building wall all together and conduct a test run to see if that makes any difference in WRF albedo? Also, which WRF albedo variable you were plotting?
2. try to use urban_physics = 2 (BEP) to see if it shows any albedo difference by your changed roof albedo experiement.
 
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