wrf output

Hi, WRF support: The fact that SMOIS and TSLB in the wrfout became 0 over the ocean after I added some land in an ideal experiment seems unreasonable to me. Could you please explain the reason for this? Attached is a figure. The second question: I would like to know the most effective way to...

Hi, everyone First of all I hope that you are well, continuing with the post I want to ask if there is a way to obtain the relative vorticity as output in the netcdf file from WRF, I have read that the only one that is obtainable is the absolute vorticity. I have been using these formula to...

I am running a case that and always seems to stop at the same time. Things I have tried: 1. Increased number of cores (8 to 16 using mpirun -np 16 ./wrf.exe) 2. Increased ptop (5000 to 3000) 3. Increased e_vert (45 to 50) 4. Decreased time_step (90 to 60) 5, Checked rsl files: I have...

Hi all We are running several experiment by using WRF (v. 4.4.1) coupled with WRF_HYDRO (v. 5.2.0). After several attempts, we understood that it was not possible to run WRF+WRF_HYDRO in hybrid mode (i.e. OpenMP works for WRF but not with WRF_HYDRO). We ran a series of tests to try to improve...

Hello, We are running parallelization tests and using the script referenced here: How many processors should I use to run WRF? to determine the correct number of nodes needed. We are using four domains and using ndown to do so. We have been able to run without issues up to the third domain...

Hello, Sir Normally, WRF generated only 1 wrfout file in each domain. But, I have 3 wfrout files in each domain when ran WRF in 30 August - 3 September 2022 (95 days). Why? I attached namelist.input. Thank you

Dear everyone, I want to extract some WRF variables (e.g., Geopotential height, wind variables, etc.) at a specific pressure level (e.g., 850 hPa). For extracting Geopotential Height at 850 hPa, I used the following WRF-Python code: # Extract pressure and z/height variables for time index 0 pres...

Hello，I'm doing a simulation of wrf-les coupling. The CFD tool used is sowfa, and in its examples, there is a case of coupling with wrf, where there is a program to extract data from wrf. But after I changed my filename, nHrs and nPerhrs. Running error : wrfout file does not have z and fc...

Hello everyone, I am working on the uncoupled wrf-hydro model with GFS data. For running the real.exe, I need to modify namelist.input. Can anyone suggest to me how can I modify the &physics part in namelist.input file? Thank you

Hi, I am working with some WRF output and have realized that, even when the moving nested domains in the WRF simulation move past land masses, there is always a non-NaN output value for the 2-meter temperature and water vapor mixing ratio, as well as the 10-meter u- and v-wind. This leads me to...

Good day colleagues, Out of curiosity, I have been trying to print out the values of SAG (Solar radiation absorbed by ground) and SAV (Solar radiation absorbed by vegetation) in the VEGE_FLUX and BARE_FLUX subroutines within the MODULE_SF_NOAHMPLSM using WRITE (6, *) 'SAV=', SAV, 'SAG=', SAG ...

Good morning everyone, I was wondering if WRF output can help calculated some aviation weather parameters or if anyone knows how to calculate them with WRF python? I am looking for these parameters: - Freezeing Level - Cb potential - Turbulence potential Please let me know if you have any...

Hi I'm running a 4 nested model with 64 levels with WRF version 4.4 I want to save all the levels in the wrfout files for d01,d02, and d03, but for d04 I want to keep the values from the surface to a given level (my estimate is that I would save 40 or 35 levels from those 64) I've been trying...

Hi, I am using WRF output from someone else and I want to calculate the surface latent heat flux. The output only contains QFX and not the LH variable. As far as I can tell from the WRF documentation on Github, QFX seems to be equal to LH divided by the latent heat of vaporization of water...

Hi, I am new to the WRF model and am using someone else's data (so I don't have access to the namelist file etc.). I am wanting to examine how the accumulated precipitation varies during the simulation. I saw on some other posts that the variables to use for this are RAINC and RAINNC. However...

Hi all, I am not an atmospheric chemist, but I am an environmental modeler and wear multiple hats, including as a consultant. We have a project using a VOC/Ozone model around the globe, and so we are looking for global weather data. It appears WRF would be suitable, except for its learning...

Hi everyone, I was confused about the warning messages for a long time. I really appreciate it if anyone can provide some suggestions on fix it. I used wrf_hydro_arcgis processing tools to generate routing files. During the process, I added a cvs file that lists the location of each forecasting...

Good morning, Could someone please explain how to use e_Vert and the stretching variables? Like I have read the tutorials and I am still not sure how to use it properly. I have attached my namelist.input for someone to help me.

Hi all, I'm not sure how to clearly describe my problem, but I have tried to take the mean value of my area and plot this over all the days I modelled to get a view of the season bond variations. However, as shown in the figure below, the same trend occurs 3 times in my output, which is...

I am a beginner to the WRF-Hydro model. I would like to simulate groundwater for an Indian region. WRF-Hydro is providing the groundwater bucket parameter and in India in-situ groundwater level is available. My questions are: 1. How can I compare the WRF-hydro output (groundwater bucket...