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running wps

  1. W

    Feature Request: Example namelists for all 4 different projections

    I have noticed in the WPS folder of WRF that the namelist.wps examples are typically using Lambert projections. But based on the user's guide section on namelist.wps ( The WRF Preprocessing System (WPS) — WRF Users Guide documentation ) some of these variables change and/or not needed when...
  2. 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...
  3. 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...
  4. W

    WRF Domain Wizard GONE and OFFLINE

    Good morning, The WRF Domain Wizard is still recommended as a way to create namelist files for WRF and WPS and is hosted on the GSD website. However, it has recently been taken offline. So is there a new recommendation from NCAR on its replacement? What other alternatives are there to...
  5. J

    Questions About WPS/WRF Application

    GOAL: Use High-Resolution Rapid Refresh (HRRR) model data as input to WRF to recreate initial atmospheric conditions, specifically for temperature and wind conditions at a specific location of interest. I am using hourly HRRR "0 hour forecast" analysis data as my meteorological data input to...
  6. E

    geogrid.exe cannot be executed properly

    Dear all, I was trying to execute geogrid.exe of WPS-3.9.1 by the command ./geogrid.exe, but the system did not show any message, and geogrid.exe cannot be executed, it just stuck forever as the screenshot shows. When I tried to interrupt the progress manually by ctrl+c, the error message...
  7. S

    Enabling SST update option in WRF Model run using ERA5 data (downloaded from copernicus)

    Hi Forum. I am trying to run a wrf model for 6 months using ERA5 re-analysis data. For which I have downloaded the SST and Sea-ice-cover data from Copernicus Climate Data Store | Copernicus Climate Data Store , along with 10m u-component of wind, 10m v-component of wind, 2m dewpoint...
  8. B

    WPS geogrid.exe

    geogrid.exe runs but the following IEEE floating point error occurs. On x86-64 using gfortran and gcc, Linux. >geogrid.exe Parsed 50 entries in GEOGRID.TBL Processing domain 1 of 3 INFORM: Using default interpolator sequence for HGT_M. INFORM: Using default data source for HGT_M. INFORM: Using...
  9. A

    [ERROR] ungrib.exe Grib2 file or date problem, stopping in edition_num.

    Hi, I tried to do the tutorial on this website and using GFS from this website. I completed the ./geogrid.exe but facing error while running ./ungrib.exe. This was the error log: I have read this thread and website but still faced the same problem. Here I attached my files and logs. Thank you.
  10. Z

    a segmentation fault when performing metgrid.exe

    i'm having a problem when i perform metgrid.exe in WPS. No errors occured performing geogrid.exe and ubgrib.exe. Here is the error: [zkq@ustc WPS-4.3.1]$ ./metgrid.exe Processing domain 1 of 3 Program received signal SIGSEGV: Segmentation fault - invalid memory reference. Backtrace for this...
  11. L

    calc_ecmwf_p tries to allocate too much memory

    Hi everybody, I'm having the problem that intermittently (and I haven't quite figured out the system behind when it does and does not happen), `calc_ecmwf_p` tries to allocate 2 ExaBytes of memory and (predictably) crashes. The line where this happens is the following...
  12. X

    WARNING invalid category of 0. all result is 0

    I need help~ I attempted to replace the static data in WPS using the following steps: Utilized "convert_geotiff -t 5000 albedo.tif" to convert the tiff to GeoTIFF data. Modified the index of the resulting binary data as follows: projection = regular_ll known_x = 1 known_y = 3546 known_lat =...
  13. I

    ST equals 0 when I use fnl to run wps

    Hi, everyone! I got a weird problem when I run WPS. Sometimes some grids become 0, but sometimes don't. But I use the same namelist.wps Could anyone help me to solve this problem? Thanks!!!
  14. 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...
  15. S

    Running metgrid with mpirun for a long simulation?

    Hi I am running a two-way nested simulation for quite a large area (see namelist.wps attached) and for quite a long simulation (1980-2014). I am now to run metgrid.exe and am curious as to whether there will be any value running metgrid.exe in parallel with mpirun. I hope someone can provide...
  16. A

    namelist.wps

    Hello, I am trying to run the attached batch script for namelist.wps. This may run ungrid, metgrid and geogrid in a remote server. But I am getting the following message when I change the meteorological data directory. Path to intermediate files is ./ ERROR: edition_num: unable to open...
  17. L

    Errror while runnning ungrib.exe

    Hi, I'm getting the following error while running ./ungrib.exe *** Starting program ungrib.exe *** Start_date = 2023-05-31_00:00:00 , End_date = 2023-05-31_06:00:00 output format is WPS Path to intermediate files is ./ ERROR: Grib2 file or date problem, stopping in edition_num. i had...
  18. P

    error running aerosol-aware thompson microphysics scheme

    I am trying to run the aerosol-aware version of thompson microphysics scheme with mp_physics = 28 option. I am following all the instructions and have correctly used all namelist settings and aerosol data required. The metgrid.exe ran well and I can see the aerosol variables from...
  19. S

    Meteorological Data Format

    Hi, I downloaded meterological data in csv fromat , how to conver it into grib2 so that "ungrib.exe" can read it . I have tried : import pandas as pd import cfgrib data = pd.read_csv('your_csv_data.csv') xarray_data = data.to_xarray() cfgrib.to_grib(xarray_data, 'out2.grib') its not working...
  20. O

    USGS 30 ARC SECONDS LULC DATA DOWNLOAD

    Good day dear colleagues, Please I would like to know if the Global Land Cover Characteristics - GLCC data (GLCCGBE20, with Geographic projection) on earthexplorer.usgs.com is the same as the usgs_30s data in WPS. If it is not, can anyone send a link to where it can be downloaded from? Thank...
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