metgrid

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?

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...

Hello everyone, I ran a real simulation from February 1, 2021, to April 1, 2021, using three domains, with initial and boundary conditions based on ERA5 fields in GRIB format. I downloaded 29 vertical pressure levels along with some surface and subsurface fields. The GRIB files have the...

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...

While I was checking the correctness of the initialization I noticed a weird aspect about the surface pressure field in the wrfinput file generated by real.exe. Surface pressure seems to depend only on the value of the msl pressure I provide in the metgrid file, despite the fact that I also...

Hello, I would like to running a wrf based on a combined field which consists of ERA5 field and the GFS RH field. In order to achieve this, I had editted the Vtable file and ungribed them seperately. 1) For ERA5 dataset: edited the Vtable file, remove the RH field of record, reivsed the...

Hi, Im trying to execupte the WRF model for a 3 domain , this 2 nests, 1 in 1 in 1, one way nesting: Though I successfully execute the ungrib and geogrid steps, I get the following errors in metgrid - file name: namelist.wps [wrf_try]$ ./metgrid.exe Processing domain 1 of 2 Processing...

**Guide to Using Copernicus ERA5 Data with WRF** Dear WRF Users, Many users encounter challenges when utilizing ERA5 data from the Copernicus Climate Data Store (CDS) with WRF. To assist, I've put together a step-by-step guide on how to successfully download, process, and run ERA5 data within...

My WRF configuration was working file without any errors until I tried to use the filtered gfs data from nomads. Now my metgrid runs produce the following error: The mandatory field TT was not found in any input data. I am using the same namelist.wps that worked with the full data download...

Hello, I would like to report a issue which exists for a period. When I selected the compile option 19 and tried to compile with intel compiler, there are ususally comes out an compile error. From the compile output, I know that the error are ususally come from the gfortran compiler. After...

Hello! I’m currently trying to make ungrib files using ERA5 data and eventually want to make metgrid files. However, there are 2 types of ERA 5 data: pressure level data and surface level data. Can you enlighten me by answering the following questions? 1. We need to make GRIBFILE.* (e.g...

Hi I was running a simulation and I forgot to check if WRF was finished before creating new met_em files for use with Thomson aerosol-aware (mp_scheme = 28). When it came to my mind, I checked rsl.error.0000 and wrf.exe was still running, it was coming close to the end of the simulation. I...

Dear users, The WRF model has 30 arc-seconds (~900 meters) as the higher spatial resolution by default. I read many papers where authors changed the topography (HGT) to a higher resolution (e.g. 90 meters). I also managed to change it. But now I have a question. The another surface parameters...

Hi there！ I got a question when executing real.exe. I used three levels of nesting. Each nested area has 8 met.em files with a time resolution of 3h. I found that after deleting some of the met.em files in d02 and d03, the real.exe program can still run normally, and eventually SUCCESS...

Dear users, I am getting an error when trying to execute ./metgrid.exe. The error is ERROR: Couldn't open file ./geo_em.d01.nc for input. Version Details : WPS-4.5 WRF-4.5.2 Input data : ds083.2 List of attachments: namelist.wps Vtable geogrid.log metgrid.log ungrib.log Please suggest...

I am trying to run a climate simulation using the initial conditions of a CMIP6 model (2.8° resolution) The results show inconsistencies with some variables: SST and T2. I attached results from a wrfout_d01, where the SST is not interpolated, which affects other variables such as T2. Then...

Hello everyone, I am using the FNL dataset, replacing the land cover data for D03, updating SST, and generating the met file. When running real.exe, I encountered the following error: d02 2015-01-06_06:00:00 Input data is acceptable to use: metgrid input_wrf.F first_date_input =...

I am using WPS-4.2 and polar version of WRF 4.1.3. I pre-processed ERA5 data using WPS-4.2, obtained met_em* files and use those to run polar WRF-4.1.3 from model date Feb 01, 2013, 00:00:00. But on model date Feb 02, 2013 00:30:00, I encounter the following error. Timing for main: time...