Scheduled Downtime
On Friday 21 April 2023 @ 5pm MT, this website will be down for maintenance and expected to return online the morning of 24 April 2023 at the latest

ungrib

  1. S

    ERA-5 land data ungrib issue

    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 ...
  2. S

    ERA5 rda grib retirement?

    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...
  3. J

    Sources of GFS data matters the ungrib FILE

    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...
  4. W

    How to use ERA5 Data From Copernicus Database

    **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...
  5. C

    Error in ungrib.exe

    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...
  6. D

    Execution of UNGRIB.exe using ERA5 data

    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...
  7. S

    unloaded Vtable

    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.
  8. R

    How to read only one layer of a 3D variable?

    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...
  9. S

    Issues with converting SST nc data to grib

    Hi all, I'm in the process of updating SSTs in the WRF v3.8 model but I'm running into WPS issues when attempting to convert GLSEA SST data from netcdf to grib. I'm aware that there are similar posts on this forum however, after trying out a couple of different options, I am still running into...
  10. E

    How to use pywinter for intermediate files?

    Hi all, As my title says, I am trying to use pywinter to generate intermediate files to be read in by WRF/MPAS-A. I can import the module in python via import pywinter But trying to import the subroutine import pywinter.winter Results in the following error: ImportError...
  11. S

    WPS ungrib ERROR: Grib2 file or date problem, stopping in edition_num.

    Please note: This is the same issue as this post: https://forum.mmm.ucar.edu/threads/ungrib-exe-not-generated-after-compiling-successfully-metgrib-and-geogrid-exe.9434/#post-21637 However, I was not allowed to reply to that thread, so I am starting a new one. Also, the issue reported in the...
  12. M

    ERROR querying GRIB2 message = 5

    Hi I was trying to run a simple one domain WRF simulation using FNL data. I was able to run ./geogrid.exe, but am encountering an issue when running ./ungrib.exe. I executed: 1) ln -s ungrib/Variable_Tables/Vtable.GFS Vtable 2) ./link_grib.csh...
  13. K

    Ungribbing ERA5 grib2 files

    Hi, I am attempting to ungrib ERA5 files in grib2 format, but I keep getting the error message Looking for data at time 2012-05-13_06 ERROR: Data not found: 2012-05-13_06:00:00.0000 When I run ./util/g2print.exe, it will read the grib2 files, but it only returns the date/time...
  14. B

    SOILHGT variable from ERA5 with ungrib

    Dear, I'm trying to run MPAS initialized with ERA5 data, which throws the error: ERROR: SOILHGT field not found in intermediate file ERA5:2014-02-08_00 I checked this intermediate file and the variable is indeed not there. From old posts I learned that ungrib.exe should calculate this variable...
  15. An error occurs while unribing in wps

    Hello, I am an undergraduate studying numerical model in university There was a problem while turning the wrf model The following error occurred while unribbing the grib2 file When I first ran the wrf model, I used Matthew in the online tutorial In 2016, the same year, it worked well even...
  16. D

    when I execute ungrib.exe I get this error

    Name of source model =>NCEP GFS Analysis forrtl: severe (174): SIGSEGV, segmentation fault occurred Image PC Routine Line Source libpthread-2.31.s 00007FE438BED420 Unknown Unknown Unknown ungrib.exe...
  17. C

    ungrib.exe not executing second pass through to replace PFILE

    I have just run into a new problem when trying to run ungrib on some NAM grib2 files. the program creates the temporary PFILEs, but cannot proceed with the reprocessing, with the following message: forrtl: No such file or directory forrtl: severe (29): file not found, unit 10, file...
  18. P

    The ungrib could only decode one of SM and ST of Chinese GRAPES_GFS which seems to be relative to the orders of SM and ST in the Vtable

    Hi, everyone. Recently, I am trying to initialize the WRF using Chinese GRAPES_GFS. However, only one of Soil Temp and Soil Moist could be decoded by ungrib. I would appreciate it if anyone help me to solve this problem. The Vtable is attached as follows: GRIB1| Level| From | To | metgrid...
  19. T

    Ungrib file lost isobaric levels

    Dear all, I'm currently running WRF with ERA5 for a few specific years. I've done a few test runs, which did fine. However, when I run with data from 1964, ungrib.exe produces FILE that lost levels in RH, TT, PRES,... The problem is that metgrid.exe and ungrib.exe stills run successfully...
  20. Y

    ERROR: ./ungrib.exe: error while loading shared libraries: libpng12.so.0 & ERROR: Screwy NDATE: 0000-00-00_00:00:00

    Hello, First of all, I want to express huge appreciation for this forum. Even though it's slow, I'm getting ahead with WPS-WRF based on this forum. I had issue in conducting "ungrib.exe" , and the error message was [error while loading shared libraries "libpng12.so.0" As a conclusion, I was...
Top