wrf_physics

Hi, I have tried to replace QNWFA_QNIFA_QNBCA_SIGMA_MONTHLY.dat climatology with real time aerosol. i have injected these 3 dimensional aerosol fields into met_em files as QNIFA , QNWFA and QNBCA succesfully. Also was able to run real.exe. But when i run wrf.exe segmentation fault is occuring...

Hai, I have been trying to simulate a lightning event using WRF-Elec, but after my execution, the IC and CG lightning values are 0. What could be the probable reason?

Hey everyone, I'm working on implementing a new convective parameterization scheme into WRF. I'm having a bit of trouble finding good tutorials or docs about how to actually do this step-by-step. Does anyone have any resources, guides, or advice they could share? Any help would be really...

Dear WRF community, I am using WRF v4.5.2 with sf_urban_physics = 3 (BEM) to investigate how air-conditioning affects the urban thermal environment. So far I have not been able to find a clear description about the AC waste heat. Could anyone tell me: In the current code, is this heat entirely...

Hello,everyone! I am currently working on a crop–climate simulation using WRF 4.5 coupled with the Noah‑MP land surface scheme. The model runs successfully, but I have noticed that the LAI stays very low and almost constant throughout the entire maize growing season. In other words, the model...

I conducted flood irrigation experiments on corn, wheat, and cotton in Xinjiang in 2000, and these data have been replaced in wps/crop/crop types using the WRFV4.6 model. Question 1: Based on the CROPCAT variable in the wrfout, I found that it seems that only corn is set to 1, while the wheat...

Hi everyone. My heartfelt thanks to all the contributors in this forum. You people are awesome!! I am a novice in modeling.I am simulating thunderstorms using 3 domains (9km, 3km and 1km) using WRF V4.3. I have generated MODIS 21 Class geo files using WPS4.3. I intend to ingest LCZ data for...

Hi all, I'm encountering an issue when running WRF from version 4.0 onwards: my TKE output field is all zeros, although the TKE_PBL variable seems to be outputting normal values. I’ve checked the following: The model was compiled correctly and runs without errors. Other turbulence-related...

I am a student new to WRF. I want to perform simulations that consider irrigation conditions. I have added the IRRIGATION content in the GEOGRID and downloaded the IRRIGATION data in the static geographical data. Verification shows that the IRRIGATION field has been successfully integrated into...

I have added a new variable and calculation in module_sf_bem.F and in subroutine hsfluxpv. i have added all other relevant files and complition is successful. but now when i run WRF.exe i get this error. mpirun noticed that process rank 5 with PID 0 on node lappusmb9a exited on signal 11...

Hi, I hope you are doing well. My name is Samira. I am trying to run WRF-Chem in two different months, but continuously. I will be appreciate if you can help me I have one question about running WRF-Chem from 25 January to 10 February (for example, the year 2022, which involves two months) in...

Problem: I ran my WRF simulation with sf_urban_physics =1 and sf_urban_physics =0 and seems to show no difference in T2. I also got no errors,warning, or faults in my rsl file. I am using WRF v4.6.0. I think the urban canopy model (UCM) is not activating because it does not finds valid urban...

I am conducting BEP/BEM simulations in WRF and wondering whether increasing domain resolution (e.g., sub-kilometer) will significantly enhance the accuracy of key urban processes. Specifically, will higher resolution improve: Shading and Solar Radiation: Better capture of PV and building...

Hello everyone, I hope you are doing well. I have two questions about soil parameters. 1) Which namelist.input variables activate the use of soil parameters, or are they always used? I have been thinking that only some of the sf_surface_physics models use soil parameters. 2) In SOILPARM.TBL...

Hi, I am studying the melting of snow cover over the coast of West Antarctica. In an attempt to find a heat source of melting during the case study I discovered that it was mainly produced by “Freezing rain latent heat flux” (variable FLX2) as an uncompensated part of surface heat budget. In my...

I am getting below error while running wrf.exe over Himalayan region. (Please find attached namelist.input file which I am using.) Kindly suggest the solution on this. Thanks. ERROR: Program received signal SIGSEGV: Segmentation fault - invalid memory reference. Backtrace for this error: #0...

Hi all, I find these package declarations in Registry.EM_COMMON, for example: package thompson mp_physics==8 - moist:qv,qc,qr,qi,qs,qg;scalar:qni,qnr;state:re_cloud,re_ice,re_snow or package myjpblscheme bl_pbl_physics==2 -...

I wanted to know U value of roof or thickness of roof when using sf_urban_physics = 3. and how we can change it

Recently I have some questions adding variables to the fast_sbm file, the density (rho_phy) unit in this file is [kg m-3], and rhocgs unit should be [g m-3] because there is a statement 'rhocgs(I,K,J)=rho_phy(I,K,J)*0.001' in this file. Now the problems are coming, an example...

I want to add heat flux as initial forcing in WRF-SCM. But I have no idea how to do it. Should I specify heat flux in files like GABLS_II_forcing.txt, make_scm_forcing.ncl, forcing_file.cdl, input_soundig? If anyone knows about this, please let me know! thank you!!