severe (174): SIGSEGV, segmentation fault occurred when runing ungrib.exe

xshan2 · Jul 14, 2023

Hello I am using WRF 4.0 and use ERA5 data. When I try to run the ungrib.exe I faced this error.

Anyone can help me please?

Thank u

Ming Chen · Jul 14, 2023

Please add the following option to namelist.wps (&ungrib), then try again.

ec_rec_len = 26214508

xshan2 · Jul 17, 2023

Hello I still got this error.

Ming Chen · Jul 17, 2023

where did you download the ERA5 data?

xshan2 · Jul 19, 2023

Hello I download them from here:

xshan2 · Jul 19, 2023

cds.climate.copernicus.eu

cds.climate.copernicus.eu

Mary-joe Medlej · Nov 6, 2023

Hello, I'm facing the same issue when i run ungrib.exe for model levels. Any update?

Ming Chen · Nov 6, 2023

Would you please download ERA5 from NCAR RDA, then follow the normal steps to ungrib the data?
The RDA ERA5 data can be downloaded at:

NCAR RDA

rda.ucar.edu

I also attach an instruction how to downlaod and use this data. Hope this is helpful for you.