ungrib

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...

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...

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...

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 I am running ./geogrid.exe and ./ungrib.exe command on supercomputer but it giving me error that /geogrid.exe: error while loading shared libraries: libnetcdff.so.7: cannot open shared object file: No such file or directory and /usr/mathlib/libpng/lib/libpng15.so.15: version `PNG15_0'...

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.

Good morning. Could somebody kindly explain the meaning of the "O, X and -" symbols beneath the variables listed in ungrib.log after its completion? I am struggling to find the documentation. Thank you

Hello, I got the following error while running ./ungrib.exe .I downloaded the era5 data from NCAR research data archive . I have attached the namelist.wps and error file below. Do I need to provide Vtable for both pl and sfc data? I linked both datas using command. , ln -sf...

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 everyone, I’m working to initialize an MPAS run using initial conditions from the full ERA5 reanalysis dataset. Since my simulations target much higher altitudes (>100 mb), I’m using the 137 model levels rather than the standard 37 pressure levels to achieve higher resolution in these upper...

Hi, I am running ./ungrib.exe of WPSv3.9.1 (WRF Preprocessing System) in a NCAR Derecho HPC. It used to run fine previously without any errors within the same directory. All the required files are in the directory. I use era5 data from ‘/gpfs/csfs1/collections/rda/data/ds633.0/’ for surface and...

Hi all, I'm having an issue with ungrib program while using the ERA-5 land data (ERA5-Land monthly averaged data from 1950 to present). I'm getting the following error message after running the ungrib program: *** Starting program ungrib.exe *** Start_date = 2017-03-01_00:00:00 ...

On the NCAR RDA page for hourly ERA5, this notice appeared: "2024-09-27. Important notice regarding RDA ERA5 GRIB files: Please note that DECS is in the process of completely phasing out whole file download, subsetting, and campaign storage access to RDA ERA5 GRIB files, with a planned end of...

Hello, I used download the GFS 0.25 degree data through the AWS cloud website. https://noaa-gfs-bdp-pds.s3.amazonaws.com/index.html It is strange that ungribbed FILE data only contains 21 levels data. the output of vars attribute gfs.t00z.pgrb2b.0p25.f000...

**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...

Hello, I am trying to run ungrib.exe and encountered the error below: (base) jamiu@jamiu-OMEN-by-HP-Laptop-15-ce0xx:~/Build_WRF/WPS/ungrib$ ./ungrib.exe ./ungrib.exe: error while loading shared libraries: libpng12.so.0: cannot open shared object file: No such file or directory I have...

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...

Hello I tried ungrib in WPS. As the picture shows, Vtable is unrecognized. What does the error "ERROR in Subroutine PARSE_TABLE" means? and How should I do next? Best regards.

Is there a way to configure the ungrib Vtable to read in only one layer of a 3D variable? We are working with multiple years and want to reduce input files to be 2D, if possible. Specifically, we are looking to just work with surface level MASSDEN, but currently we are running through all 50...