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The problem of using double-layer nesting and LCZ map namelist setting in WRF4.3.3

fpw

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I am running a max_dom=2 case using WRF4.3.3, where I am using the LCZ map generated by the w2w program. My namelist-INput has been set according to the namelist-1 and namelist-2 in the attachment, but only the settings in namelist-1 have been successfully executed. Running according to the settings in namelist-2 shows that the parameter settings in physics are incorrect. The only difference between the two namelists is the modification of the physics section.
By the way, I tested it successfully with max_dom=1 before using it. In the case of max_dom=2, only the grid was modified, and the other parameter schemes were not changed.
May I ask if the settings in namelist-1 are correct? Or am I making mistakes somewhere else?
Looking forward to everyone's reply!Thank you!
 

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  • namelist-1.input.txt
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  • namelist-2.input.txt
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Please update your WRF to WRFv4.5 and/or newer version. We fix a few bugs related to LCZ in older version.

Try the new version and let me know if you still have any issues. Thanks.
 
Please update your WRF to WRFv4.5 and/or newer version. We fix a few bugs related to LCZ in older version.

Try the new version and let me know if you still have any issues. Thanks.
Hello, thank you for your reply!
I am currently using WRF4.7 for the same simulation, but I am confused about the situation where the parent domain ID is invalid and another fatal called that appeared in the rsl.error.0004 file. Cloud you please give me some advice and I would appreciate that. The attachment contains the rsl.error.0000 and 0004 generated after running real, as well as namelist.input and namelist.wps.My WPS version is 4.6.
 

Attachments

  • rsl.error.0000.txt
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  • rsl.error.0004.txt
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  • namelist.input.txt
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  • namelist.wps.txt
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Hi,
I will be on vacation during May 9-16. I will get back to you after I am back to office, Sorry for the delay and thank you for your patience.
 
In your namelist.wps, please set

geog_data_res = 'lcz_new+default','lcz_new+default',

Then rerun geogrid.exe and metgrid.exe before you move on to run REAL and WRF. Let me know if you still have issues for this case.
 
In your namelist.wps, please set

geog_data_res = 'lcz_new+default','lcz_new+default',

Then rerun geogrid.exe and metgrid.exe before you move on to run REAL and WRF. Let me know if you still have issues for this case.
I am glad to receive your reply and I hope you had a lovely holiday!I apologize for not responding in a timely manner as I have been testing WRF4.6 for the past few days. The previous issue has now been resolved as I modified the eta_levels settings. Now three new issues have arisen.

The first question. I used the w2w program to import LCZ data into the file generated by geogrid.exe, and then successfully ran metgrid.exe and real.exe. However, after running wrf, a “fatal called” occurred: “too many input landuse types”. I know that WRF has changed the LCZ number from 31-41 to 51-61 in the new version, and then I checked the file generated by W2W and it shows num_land_cat=41. May I ask if it is related to this or due to other problems? If so, how can I set it up so that w2w can generate a file with num_land_cat=61.

The second question. Due to the existence of the first question, I used the cglc_modis_lcz land type provided by WRF, and everything went smoothly afterwards. However, I have some puzzles about the namelist.input settings. The case I am running is 2 doms, but if I set ‘sf_urban_physics=1,1; use_wudapt_lcz=1,1’ in&physics, running wrf will display that these two parameters are invalid and stop running. If I set ‘sf_urban_physics=1; usew_udapt_lcz=1’, it can run successfully. I am wondering that is this correct? Can‘t I set up two grids separately?

The third question. After successfully running the cglc_modis_lcz land type provided by WRF, I want to modify the anthropogenic heat (AH) data in URBPARM_LCZ.TBL for scenario simulation. But whether I set “AH = 0 and ahoption=0” or not, the size of the HFX variable in wrfout is exactly the same in both cases. I have conducted many simulations without using LCZ before, and there were significant differences in the results of HFX in both scenarios, so I am very confused about this and hope to get your help.
The attachment contains the namelist. input file and the rsl.erroneous 0022 file that contains “fatal called”.Only num_land_cat in namelist.input was modified between different cases.
Looking forward to your reply.
A lot of thanks!
 

Attachments

  • namelist.input.txt
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  • rsl.error.0022.txt
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