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wrf utilities

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    WRF Ensemble technique

    I'm looking for an ensemble technique, and I remember using it in other numerical models and I think it was also used in WRF, but I'd like to know the specific method. This is a method of using the effects of multiple physics processes in one experiment. Once dynamics is performed, it then...
  2. W

    New and Open Sourced WRF Domain Wizard Tool Annoucement!!!!

    Good morning everyone, I am thrilled to announce a secret project that Jiri Richter and I have been working on to enhance the NSF NCAR - The National Center for Atmospheric Research's Weather Research and Forecasting Model #WRF. The WRF Domain Wizard, a cornerstone tool for meteorologists and...
  3. S

    Regridding / Convert Lambert projection of WRF outputs to Lat-lon projection + MASKING according to Shape file

    Hi, I have run the WRF simulation using Lambert projection. For verification, I have to convert the projection to lat-lon projection and have to mask it according to my shape file for ease of comparison. For this, I have used the rcm2rgrid function in NCL. where I can convert my grid, but...
  4. W

    Is WRF-Python still in development or dead?

    https://github.com/NCAR/wrf-python WRF-Python is a powerful tool but there hasn't been any update to the code in almost 1.5 years. Just seeing if it is still supported or if there is something new to use.
  5. J

    Interpolating WRF data (on structured grid) to observation location (latitude/longitude point)

    Hey there, I'm trying to figure out what the best Python function would be (from wrf, SciPy, etc.) to interpolate gridded WRF output data to a specific observation location at a latitude/longitude point, across various vertical levels. I know that some NCL functions are supposed to handle this...
  6. xpji

    How to set a constant radiational cooling at all vertical model levels?

    Hi, all How do I set up a constant radiative cooling when I want to run a WRF experiment? This experiment is not the ideal case that comes with WRF, but the initial field data made by myself. Should I adjust the parameters in the WRF mode and then recompile? Or modify it directly in the...
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    WRF Domain Wizard GONE and OFFLINE

    Good morning, The WRF Domain Wizard is still recommended as a way to create namelist files for WRF and WPS and is hosted on the GSD website. However, it has recently been taken offline. So is there a new recommendation from NCAR on its replacement? What other alternatives are there to...
  8. W

    WRF output variables

    Looking to see if there are WRF namelist options that need to be enabled to have certain exports in the wrfout file. I am looking for these times of values: 1.) are there any icing or turbulence options at different altitudes from that model? 2.) are there any surface visibility forecast...
  9. F

    Relative vorticity as WRF output

    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...
  10. A

    NaN values are coming over mountains when interpolating WRF variables to a particular pressure level using WRF-Python

    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...
  11. J

    WRF postProcessing

    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...
  12. D

    Not really sure how to use e_vert and stretching

    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.
  13. Y

    Could I run ideal case with WRF-chem?

    Hi, I just start learning WRF. I wanner repeat the results of this article. "Simulating nuclear cloud rise within a realistic atmosphere using the Weather Research and Forecasting model " I ran WRF4.2 in ubuntu18.04. And, I tried to set up a warm bubble in em_quarter_ss case. Now I want to add...
  14. D

    FAQ question

    https://forum.mmm.ucar.edu/threads/how-many-processors-should-i-use-to-run-wrf.5082/ The python code in this forum thread is meant for HPC systems. If I have a desktop or laptop what values need to be changed to the python code??
  15. J

    The problem of the auxiliary pressure level output in WRFPLUS

    Hello. When I was using the auxiliary pressure level output in WRF, for example, I just add &diags p_lev_diags = 1 num_press_levels = 1, press_levels = 50000, in the namelist.input and auxhist23_interval = 360, frames_per_auxhist23 = 1, io_form_auxhist23 = 2, in the &time_control part, if I run...
  16. D

    WRF Domain Wizard Alternatives

    Good morning, The WRF Domain Wizard is still recommended as a way to create namelist files for WRF and WPS and is hosted on the GSD website. WRF Domain Wizard But this software is VERY VERY old. Using Java 2.0 software which isn't even installed on standard windows machines anymore or even...
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    Vapor 3.6.0 Release

    Download here : https://github.com/NCAR/VAPOR/releases See new features in Vapor 3.6.0 here: https://youtu.be/Wp7ZQuI7b4c New improvements include: - Slice Renderers can now be arbitrarily oriented - The Contour Renderer now supports 3D variables, and can also be arbitrarily oriented...
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    Vapor 3.5.0 is now live!

    Vapor's release cycle is accelerating, and now 3.5.0 is live. https://vapor.readthedocs.io/en/readthedocs/ New improvements include: - New particle data reader: Data Collection Particles (DCP) - New raw data reader: Brick of Values (BOV) - Bookmarks - Easily, and visually save your state -...
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