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Hi Dan, Have you fixed this problem? I am facing the same problem with WRFDA V 4.3.3. Changing the timestep to smaller values is not fixing it either. The timestep times keep becoming larger and smaller again. If you have found a solution, please help me out. Thankyou, Vijayan.

Hi, I believe the last five columns written are: Observation, Observation - Background, QCflag, Observation error, Observation - Analysis

Hi, I am getting the following error in stage0 of gen_be: [1] Initialize information. Computing gen_be NMC-method forecast difference files for date 2019010200 Input filestub = wrfout_d01_2019-01-02_00:00:00 [2] Setup up ancillary fields using 1st member values. *** Error in...

Hi, So, I re-installed WRF 4.3 and it seems to be working fine now. Still no clue what went wrong with the previous installation though. Thanks!

Hi, I am trying to run WRF with three nested domains of resolutions 18km, 6km and 2km. I need the extent of the outermost domain to be 80 degrees longitudinally, ie from east to west, and 55 degrees latitudinally. Are there any constraints to be kept in mind while deciding the extents of the...

Hi, I tried the WRF v4.3 run with exactly the same namelist options as that of 4.2, with zadvect_implicit=0. But, the issue still persists, the run was considerably slower as compared to V4.2 runs. I have herewith attached the namelist and rsl files for the run. Thanks.

Hi, I have attached the namelist files as well as the log files. Thankyou.

Hi, I am getting the following error when I try to run genbe using NMC method for 9km resolution domain with 310x298 gridpoints each at 64 vertical levels on a Windows PC with Ubuntu WSL: Program received signal SIGSEGV: Segmentation fault - invalid memory reference. Backtrace for this error...

Hi, I checked the output files and the sizes are the same for each output time. I checked the rsl files and I found that each timestep is taking six to seven timesteps longer to process in V4.3 than V4.2. I have attached a part of both files. Please help me figure out what might be going...

Hi, I am trying a wrf run with w_damping turned on. I would like to know if, when and where vertical velocity damping is being applied. How can I see that information? Please help me out. Thanks.

Hi, I had been running simulations using WRF V4.2. Now, when I try to do those same simulations again using a new installation of WRF 4.3 version, it is slower by almost six times. Is WRF 4.3 supposed to be this slow or might something have gone wrong with the compilation of the new version (It...

Hi, I would like to generate background error using ensemble perturbation method. I am using WRF's genbe module. I am fairly new to modeling and I have no idea how to generate the ensemble outputs. Could someone please tell me the steps I have to follow to generate the ensemble outputs? Thankyou.

Hi, I am trying to assimilate gps ztd data using 4dvar and cv option 3. WRF var runs successfully and wrfvar_output is created but there aren't any increments at all. To check if wrfda is working, I tried assimilating prepbufr data and wrfda worked fine with that data, there was a reasonable...

Hi, When I try running 3dvar, gts_omb_oma files are produced. I have read that these files contain (observation - background) and (observation-analysis) information. I am not able to understand which column contains what data. Could you please help me understand what each field/column in the...

Hi, I am trying to run obsproc.exe for gpsztd data. I have the data in littler format. When I try to run obsproc, I get the following error: ??? Pressure or Height reported inconsistent: FM-114 GPSZT ref2 13.41093 79.17966 (height-Ref_h) > 12000m, p,h,ref_h: 0.97640E+03...

Hi, I am trying to assimilate prepbufr data using 4dvar. The domain resolution is 9km and I want to use an assimilation window of 6 hours. WRF stops with no errors after around 4 hours of integration. Whereas, if I set the assimilation window to 3 hours, there are no issues and wrfvaroutput is...

Hi, I am integrating running the model for 24 hours, from 2019-05-18_00 UTC to 2019-05-19_00 UTC. I am getting CFL errors at multiple points of time during the simulation, at 10 UTC, 13 UTC, 15 UTC and 21 UTC. But the simulation gets completed and I get outputs at 2019-05-19_00 UTC. Would it be...

Hi, I am getting the following error when I try to run the test case for genbe provided in the userguide. At line 106 of file gen_be_stage1.f Internal Error: get_unit(): Bad internal unit KIND [1] Initialize namelist variables and other scalars. Could you please help me resolve this issue...

Okay... Thankyou!!

Thankyou for the help!