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wps

  1. C

    Initializing WRF with HRRR prs data

    Hello, I am trying to initialize a wrf run with HRRR data from NOMADS. I keep running into an issue during the metgrid step in WPS where it can't find ST values or even PRES. I noticed someone else was having an issue with this before, see here: Missing values, but mentioned they solved it...
  2. R

    Troubleshooting WPS Geogrid.exe: Incorrect Range in Generated Static Geographical Data

    Hi All, I am moving on to the static geographical data with WPS version 4.2 for a specific region ranging from -60S to 90N latitude and -180W to 180E, with spatial resolution of 0.25 degree. But after running geogrid.exe, the static data generated covers the entire globe from -90S to 90N. Could...
  3. 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...
  4. 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!!!
  5. F

    Distance between parent-child domains

    Hey everyone I want to do a run using 2 nested domains, but I don't know if it exists any minimal distance between the parent and child domain boundaries. For example, in the attached image I have 2 domains, and the skyblue lines are the distances. Is there any good practice relationed with that?
  6. F

    Different result if GFS (global) or region?

    Hey, everyone, I would like to know that if my initial boundary conditions are the GFS, there will be some difference in the result if I use the whole domain of the GFS (global) or if I only use one area, for example only South America I want to do downscaling to the GFS forecasts
  7. W

    metgrid.exe error for CMIP6 data

    Dear all, I am trying to use the MPI-ESM1-2-HR ssp858 and apply the dynamical downscaling. To convert the nc file to intermediate files I am using the python script provided GitHub - lzhenn/cmip6-to-wrfinterm: tools to process cmip6 data to drive wrf. I successfully create the intermediate...
  8. N

    Setting up a WPS domain for the limited-area MPAS simulations

    I am trying to run limited-area MPAS simulations over the south-central USA. However, having difficulties setting up a domain for the WPS. Any tips regarding the WPS namelist will be much appreciated. Thank you.
  9. J

    ERA5 ensemble: InputData for ungrib

    Hi I want to use ERA5 ensemble members for I.C and B.C. I downloaded surface and pressure data from "Copernicus Climate Data Store |," but there are 10 ensemble members in a single file. I tried using "cdo splitsel,1 ERA5-pl_membsers-20210831-20210831.grib ERA5-pl_membsers-20210831-20210831_"...
  10. 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...
  11. C

    ERA5 LANDSEA mask pulling from LANDMASK variable instead of the invariant file?

    Hello all, I am at the WPS stage of a WRF version 3.8 simulation over the Atlantic using ERA5 boundary conditions collected from the NCAR site below: NCAR RDA Dataset ds633.0 I use their surface data, pressure level data, and two invariant files for LANDSEA mask and geopotential/soil height...
  12. F

    (Solved) WRF executables successfully built but error occur when configuring WPS

    Hi, I am Grace, new to WRF and MPAS. I need WRF-WPS to build initial data for MPAS model. After compling WRF, I run the command ./configure under WPS directory, but get the following error: Error: The $WRF_DIR environment variable was set, but the WRF code at...
  13. A

    ungrib error for Grib1 and/or Grib2 files

    Hi, forum I am trying to ungrib ERA5 surface and pressure data downloaded from Copernicus Climate Data Store |. When I ungrib the data the PFILEs are created but then I get the following error. *** stopping in gribcode ***\n \tI was expecting a Grib1 file, but this is a Grib2 file. \tIt is...
  14. C

    Geogrid topography

    Hi I tried to insert srtm data 3s in geogrid. It works fine. But i didn t understand why if i plot HGT_M from geogrid nc file i see flat map and i didn t see any big difference respect to the default Attached a picture . Could be the way to plot HGT_M? Have you specifica script?
  15. H

    A bug in WPS-V4.5 about ICON-Global data processing

    Hello, WPS development team, @weiwangncar @grafmi @WQadam There is a bug in WPS-V4.5 about ICON-Global data processing when the ICON-Global data was ungrib. Although the ICON product specification(https://www.dwd.de/DWD/forschung/nwv/fepub/icon_database_main.pdf) states that ICON-global soil...
  16. 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...
  17. D

    question about best practices for domains

    max_dom An integer specifying the total number of domains/nests, including the parent domain, to be used in the simulation. Best Practice Nested domains are necessary when scaling down from coarse first-guess (input) data to a fine resolution, and the recommended ratios for coarse data...
  18. D

    error while run geogrid.exe

    When I running geogrid.exe, it keeps getting killed. For some reason, I think there should be no mistakes in my namelist. mpi didn't work either. I've reinstalled it multiple times, and it's WPS4.0. And there is no error message in the log. By the way, I'm running the wrf model with a server, so...
  19. A

    (RESOLVED) Troubles trying to change from MODIS to USGS data

    Hello, Although I read the User's Guide and did as explained, I can't make WPS to use USGS data instead of MODIS. I need to try and use USGS because of ndown/WRF.exe issue (using old coarse run under USGS as input via ndown.WRF.exe for a finer simulation, currently "segfaulting", maybe because...
  20. M

    ERA5 surface data not found in WPS

    Hello, I have a problem running WPS with ERA5 data. I have downloaded 2 grib files, one for pressure levels (all pressure levels) and the other one for single level data (all variables ecept precipitation type, K index and total totals index). But it seems like metgrid doesn't recognise surface...
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