wps

Hi All, I'm trying to use Gao's 2020 SSP5 urban fraction data (https://dataverse.harvard.edu/file.xhtml?persistentId=doi:10.7910/DVN/85PJ1D/N3Y1JC&version=1.0) in WRF. I followed the User Guide to convert TIFF to BIL format and make WRF-ready files (Chapter 3: WRF Standard Initialization), but...

Hi WRF/WPS users and wrfhelp, I'd like to get some guidance to "ungrib" the GFS's higher level isobaric fields. In my understanding, GFS grib2 format file includes the higher level isobaric fields up to 0.01 hPa since March 22, 2021. In my testing, however, the intermediate file generated from...

I am trying to run WRF with ERA5 Dateset (ERA5 hourly data on pressure levels from 1940 to present and ERA5 hourly data on single levels from 1940 to present) but I encountered an error on metgrid (refer to the metgrid.log file). How to proceed?

The message I get in the ungrib log is: End-of-record mark (7777) not found 0 Sec0(1) = 283230 0 *** stopping in findgrib in gribcode ***\n \tI could not find the GRIB string in the input file \tafter testing the first 100,000 bytes. \tThe file may be corrupt or it is not a GRIB file...

I am trying to process GRIB2 files that contain forecast_time in minutes, but ungrib does not seem to recognize the time in minutes and is failing during the processing. When I use the ncl_filedump tool to inspect the GRIB2 file, it correctly identifies the forecast_time as 40 minutes. However...

I had the following problem with geogrid.exe in WPS. The namelist and geogrid.log as the uploaded file. I didn't modify the options in namelist to check if geogrid.exe file is created or not, I used the original one in the installation. I would be grateful if you can help me.

Hello, I'm currently in the process of setting up a WRF simulation that uses the ARISE-SAI-1.5 GCM (variant of CESM2) as initial boundary conditions. My current domain encompasses CONUS, of which I will be doing climate simulations for various ensemble members. Upon initial setup, I included...

Hello, I'm encountering an issue with my WRF simulations that I haven't been able to resolve. I'm running a series of 15-day simulations (with an additional 2-day spin-up), starting on January 1st, 2022, then January 15th, and so on, with the goal of covering the entire year. Everything worked...

Hi all. I have just used era5_to_int to generate my intermediate WRF files for the first time. I noticed the my met files now have num_metgrid_levels = 138, instead of the usual 38 value. I was wondering if someone can help me figure out how to get num_metgrid_levels = 38 again. Also, is a...

Dear all, I'm (desperately) try to run WRF with the ERA5 data available from UCAR through the era5_to_int Python script. Through extensive research and trial and error I think I've understood the variables needed to run WRF with the --isobaric option of era5_to_int which are the following: -...

I have an appplication that is very performance-critical and therefore I would like to run especially metgrid with MPI. However, I get messages of the form ERROR: Error in ext_pkg_open_for_write_begin. I am using WPS 4.6.0 and I run it with mpirun -np 4 ./geogrid.exe. I compiled with the MPI...

Dear WRF-Chem community and all, I'm encountering an error when running real.exe in the WPS of WRF-Chem on a Red Hat 64-bit Linux virtual machine. This is my first attempt at running real.exe(chem_opt=0), and it fails to generate wrfbdy_d01 and wrfinput_d01 files. The error message in...

Hello everyone, I encountered some issues after adding SST data into my WRF simulation. The SST data I used is from the ERA5 reanalysis dataset with a resolution of 27 km. I am using WRF version 4.3.2. The two images below show the visualization of SST and LANDMASK from the wrfout file. As you...

In the WPS, I replaced the LAI12 and GREENFRAC values using the MODIS product in the geo_em_d0* in the following pictures. But, I got the bad vegetation fraction values from the wrfinput_d02 and wrflowinp_d02 after real.exe in following pictures . The FVEG equal 0 in the d02 domain...

Hello everyone, I'm trying to run the Python script era5_to_int to convert ERA5 model level and surface netCDF data into WPS intermediate file format, but the script fails. I'm working with RDA datasets d633006 - 'ERA5 Reanalysis Model Level Data' and d633000 - 'ERA5 Reanalysis (0.25 Degree...

This is my first time asking on a forum, and I am a new WRF user. I'm running PolarWRF in the Antarctic region. But there is something wrong with my experiment. When running geogrid.exe for the first time, an error occurred: Could not open ...../WPS_GEOG/ramp1km/index. I downloaded the...

Hello, I want to perform a real case simulation in which I have one nested domain. The namelist.wps and the GEOGRID.TBL I used are in the zip folder attached here (GEOGRID.TBL is the default one). Geogrid program successfully completes and parent domain looks fine, but when I check the...

Hello, I am trying to drive WRF with EC-Earth output which contains upper air variables(ta,ua,va,spechum) along with a few surface ones (psfc, ps) at 6-hour frequency. Both the soil and surface data is only available at daily resolution (T2,U10,V10,PSML,ST,SM). Per my understanding of WRF, it...

Hi, In running WPS, metgrid.exe runs start to finish. However, a single met_em.d* file, met_em.d01.2006-12-12_00:00:00.nc (starting time step), returns an HDF error on ncdump. The met_em files for d02 and d03 of the same time step are fine, as well as later time steps of d01. I'm wondering what...

Hi. I have this error when running ungrib.exe for SST data. I understand that it says that the start time has to be before the end time, which is obvius, but SST has only one time. So, the start time and the end time will be the same. I don't know what to do. Thanks for the future answers.