wrf.exe

I am a graduate student currently studying WRF. I would like to perform LES simulations, but I’ve run into some difficulties, so I’m here to ask for your help. I would like to know the specific steps involved in running an LES simulation. Do I simply need to adjust the parameters corresponding...

Hello all, I'm using WRF4.7.1 to run a 1-year simulation (2016-01-01 to 2016-12-31) which encounters segmentation fault at 2016-05-23_08:00:00, because I set write restart files per 5-day, so the latest restart file is wrfrst_d01_2016-05-20_00:00:00. Therefore, I changed the namelist to do a...

Hi all, I'm writing to see if anyone has any idea what is going on with this error I am having running wrf.exe. Currently I am running a 1 day test for my setup using BEP+BEM. I am able to run WPS and real.exe with no issue but wrf.exe gives me this error: "FATAL ERROR... singular matrix in...

Hello all, I keep having this issue running wrf.exe. I'm using the w2w tool to include LCZ classification in my geo_em files. I am able to run metgrid and real with these files but wrf fails with this error: "USING URBPARM_LCZ.TBL WITH OLD 3 URBAN CLASSES. SET USE_WUDAPT_LCZ=0" And when I...

Dear, I have a tough problem about wrf-chem. The error is below: newnucbb mins 2.33E+02 5.00E-02 1.07E-13 7.11E-17 4.58E-22 0.00E+00 newnucbb maxs 2.83E+02 9.75E-01 1.29E-09 8.87E-13 1.32E-10 9.30E+05 newnucbb avgs 2.52E+02 5.64E-01 2.47E-10 2.49E-13 4.69E-12 1.25E+04...

I am attempting to use SRTM terrain data in a WRF simulation. I followed the recommendations from this Thread , and WPS completes successfully. All variables in the generated geo_em.d0#.nc files contain the expected values. The real.exe step also runs without any apparent issues, and the...

I wanted to run WRF ARW model at 1km using ERA5 reanalysis, for testing I just ran for 15 days but However, when running wrf.exe, I encounter the following error: forrtl: severe (174): SIGSEGV, segmentation fault occurred. I have tried multiple ways to fix it but I am not sure why is that...

Hi, I am experiencing a persistent WRF crash at a specific simulation time. WRF 4.7.1 consistently crashes at 2019-06-19 05:19:32 UTC across multiple attempts with different configurations. The previous day (June 18) completes successfully with identical domain and physics settings, but June...

Dear friends: When I was running the wrf.exe program, it keeps running, but there were only two wrfout files. One was the valid file at the initial time of d01, and the other was an invalid file at the initial time of d02 (with a file size of 0). Thank you in advance for your help.

Hello, I am running 2 WRF simulations that require restart runs to finish. The first halves of each model ran successfully, but I am now experiencing issues with the restart runs. I successfully ran four other simulations with the same model configuration, including with restarts. The only...

Hi all — I’m seeing a reproducible WRF-Chem/KPP build stop that looks like an internal consistency issue in the CBM4 mechanism files During a WRF-Chem build (`WRF_CHEM=1`, `WRF_KPP=1`), the `chem/KPP/compile_wkc` step iterates over mechanisms and exits with: > `ERROR: variable name for third...

I am running the WRF model for an event using the urban physics scheme=1 and getting the below error. WRF model version: 4.5.2 Simulation period: 22/05/2024_00 to 27/05/2024_18 Timing for Writing wrfout_d02_2024-05-22_00:00:00 for domain 2: 0.52564 elapsed seconds Tile Strategy is...

Hi everyone, I am currently running some simulations in complex terrain. I have successfully run and validated a simulation using the Noah-MP Land Surface Model without any issues. Now I want to study the effect of using different LSMs. When I try to use the RUC LSM, wrf.exe crashes...

Hi, all. I'm using WRF-NoahMP from 2009-2014 to simulate irrigation in Xinjiang, China. However, model got the Segmentation fault when wrfout_d02_2010-01-07_10:00:00. My WRF version is 4.6.1 using ERA5 data as forcing data, and I'm using 120 cpu to run my case. Hope you can give me some help...

Came across a new dataset which is promising, will we be able to use the MSWX dataset for running WRF?

Hi, I'm using run_wrf.pbs to run a WRF simulation. Originally, I use this parameter set in the .pbs file: #PBS -l select=8:ncpus=30:mpiprocs=30:mem=64GB But it was running slow, so when I restart this job I changed the parameters to increase node number: #PBS -l...

Using the ECMWF Climate Data Store (CDS) to Download ERA5 Data in a Conda Environment This guide shows you how to: Create a Conda environment called CDS with pip and cdsapi Activate the environment Set up your CDS API token (.cdsapirc) Use the Python script Download_CDS_ERA5_Data_Hourly.py to...

I am attempting to run three separate WRF runs, all of which are unsuccessful and throw the same errors: "rank XXXX died from signal 11" and "rank XXXX died from signal 15." A quick search reveals these are segmentation faults, with signal 11 indicating an MPI segmentation fault. Screenshots of...

Hello WRF community, I have been using WRF for a year-two now, and now I would like to start altering the WRF code. My goal would be to add or alter a physics package, so I would like to ask for any materials you found useful in the following steps: Defining and ingesting new data (e.g...

Hello all, I'm using WRF-Solar shcu_physics=5 (Deng) to simulate the shortwave radiation conditions over the whole China, but got a "segmentation fault" error, it seems like this error is related to the Deng shallow cumulus scheme. I'm not sure if I might have missed some parameter settings...