wrf output

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...

Dear WRF solar community I'm a newbie to WRF solar EPS. I'm trying to run WRF SOLAR EPS in the reference configuration shown in WRF-Solar® EPS | Research Applications Laboratory. and default STOCHPERT.TBL file. I successfully ran few cases, But I could not find any output parameters...

Hello. I'm beginner to the WRF model. I was wondering about the default timezone in WRF. If I use a UTC-based input, the output will be in UTC, no matter where the domain is located, right? So if the model start time is 00:00 UTC on 1 October 2021, will the solar insolation or altitude in the...

Good afternoon, I was wondering if there is a way to append the file type (ie .nc .grib) to the wrf output files as part of the nameslist? This would make it easier to do data analysis.

Hello, I'd like to know if it is possible to use an environment variable to direct the output files from wrf.exe and if so, what the syntax would be in the namelist file. I'm thinking of something like the following: &time_control ... history_outname =...

Dear colleagues, (1). Please, how can I ensure that my simulation has a fine vertical resolution? (Vertical height above the ground). The e_vert? (2). How can I ensure that the values of snowfall and snow coverage are reset to 0 before each integration? (3). How do I exclude un-needed...

Hi All, Significant differences were found in the SWDOWN calculation between WRF-4.3.1 and WRF-4.4.1. Compared with measured radiation data, WRF-4.4.1 shows much worse scores. Similar differences are in CLDFRA: compared to satellite observation WRF-4.4.1 underestimates the values of the...