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LAI from in wrfout files are different from VEGPARM.TBL

xuanlab

New member
I am doing WRF simulation with UCM of 3 urban categories.
And I found that LAI in wrfout files are different from that in VEGPARM.TBL .
For example, when the LU_INDEX is 31, LAI in wrfout files is 4.29,
while the range of LAI for "Urban and Built-Up Land" in VEGPARM.TBL is 1.0.
What is the problem?
 

kwerner

Administrator
Staff member
Will you please attach your namelist.input file and let me know which version of WRF you are using? Thanks!
 

xuanlab

New member
Dear Kwerner

I am using WRFv3.7.1.
Please kindly find the attached file.
 

Attachments

  • namelist.input
    6.5 KB · Views: 4

kwerner

Administrator
Staff member
Hi,
Can you run this test with the latest version of WRF (V4.5) and let me know if you're still seeing the issue? There have been quite a few updates to the code since version 3.7.1. Thanks!
 

xuanlab

New member
Dear Kwerner
I tried the same simulation with WRFV4.3. And I got the following errors in rsl.error.0001.
How can I solve the problem?
---------------------------------------------------------------------------------------------
[yoshie1:38632:0:38632] Caught signal 11 (Segmentation fault: address not mapped to object at address 0xfffffffe0353b714)
==== backtrace (tid: 38632) ====
0 0x00000000020fc118 module_ra_rrtm_mp_rrtm_() ???:0
1 0x00000000020f9fd1 module_ra_rrtm_mp_rrtmlwrad_() ???:0
2 0x0000000001b75f02 module_radiation_driver_mp_radiation_driver_() ???:0
3 0x0000000001c67557 module_first_rk_step_part1_mp_first_rk_step_part1_() ???:0
4 0x00000000015b3e46 solve_em_() ???:0
5 0x00000000013d7aec solve_interface_() ???:0
6 0x0000000000597faf module_integrate_mp_integrate_() ???:0
7 0x00000000005985c6 module_integrate_mp_integrate_() ???:0
8 0x00000000005985c6 module_integrate_mp_integrate_() ???:0
9 0x00000000005985c6 module_integrate_mp_integrate_() ???:0
10 0x0000000000416351 module_wrf_top_mp_wrf_run_() ???:0
11 0x000000000041630f MAIN__() ???:0
12 0x00000000004162a2 main() ???:0
13 0x0000000000022495 __libc_start_main() ???:0
14 0x00000000004161a9 _start() ???:0
=================================
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image PC Routine Line Source
wrf.exe 0000000002F5A6FA for__signal_handl Unknown Unknown
libpthread-2.17.s 00002B828F3DC5D0 Unknown Unknown Unknown
wrf.exe 00000000020FC118 Unknown Unknown Unknown
wrf.exe 00000000020F9FD1 Unknown Unknown Unknown
wrf.exe 0000000001B75F02 Unknown Unknown Unknown
wrf.exe 0000000001C67557 Unknown Unknown Unknown
wrf.exe 00000000015B3E46 Unknown Unknown Unknown
wrf.exe 00000000013D7AEC Unknown Unknown Unknown
wrf.exe 0000000000597FAF Unknown Unknown Unknown
wrf.exe 00000000005985C6 Unknown Unknown Unknown
wrf.exe 00000000005985C6 Unknown Unknown Unknown
wrf.exe 00000000005985C6 Unknown Unknown Unknown
wrf.exe 0000000000416351 Unknown Unknown Unknown
wrf.exe 000000000041630F Unknown Unknown Unknown
wrf.exe 00000000004162A2 Unknown Unknown Unknown
libc-2.17.so 00002B828F80F495 __libc_start_main Unknown Unknown
wrf.exe 00000000004161A9 Unknown Unknown Unknown
---------------------------------------------------------------------------------------------
 

kwerner

Administrator
Staff member
Hi,
Can you try with Version 4.5 (instead of V4.3). If you still get a segmentation fault, please attach your latest namelist.input file and package all of your ouptut/error files (e.g., rsl.*) into a single *.tar file and attach that, as well? Thanks!
 

tslin2

New member
if you were running UCM, I wonder if you also experience the similiar issue?
I got the RRTMG longwave error for model crash.
 

xuanlab

New member
Hi Kwerner
Thanks for your suggestion.
In these days, I tried the simulations by changing eta levels, then the simulation went well (although the eta levels are the almost the same with that of the default one).
However, the simulation results, especially the surface temperature, become lower than that without UCM. I think this may be the problem posted here (Latent Heat Flux Is Zero in Urban Land).
Then, I tested the simulation with sf_urban_physics=2 & 3. Although the simulations are still on going, the surface temperature seems reasonable.
Always thanks for your suggestion!
 

xuanlab

New member
if you were running UCM, I wonder if you also experience the similiar issue?
I got the RRTMG longwave error for model crash.
At present, I didn't get some problem directly related with RRTMG longwave error.
I suggest you try with sf_urban_physics=2 or 3. There may be a problem when dealing with emissivity of urban category when sf_urban_physics=1. Plese find the following post (Latent Heat Flux Is Zero in Urban Land).
 
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