Ungrib input files

[Alex33]

Hi
I plan to try ECMWF files to run the model. The input data I have is in a single grib file that contains each time step of interest. I would like to ask..
Can ungrib read only one input file or should it be one grib file per time step?

Regards

 

[Ming Chen]

if your file is grib2 format, the ungrib can only process individual files that contain single-time data.

 

[Alex33]

If my files are GRIB1 edition, can I use a single file with all time data to run UNGRIB?
I mean, instead of having File_000.grib, File_003.grib, File_006.grib, can I use a File.grib that contains all the time vector I need?

If so, do I have to make any special adjustments to UNGRIB?

 

[kwerner]

I believe Ming's response was meant to include grib1 and grib2 data formats; however, it may be possible that you can use a single file if all times are in order. Many times when all data is in a single file, some of the data is out of order and ungrib is unable to handle this. You can always just test it to see.