Mpas-jedi B sample data's date

JEDI
1

Hi, I have a question about the mpas-jedi B sample data’s date.

in 3_convert_uv_to_psichi.bash:

image

the commented “# f_fcst=…” line, is a more common dir structure “init_dir/output.valid_date.nc“.

but the actually used “f_fcst=…” line, is a dir structure “valid_dir/init.valid_date.nc”.

then ncdump -c, or ncdmp -v xtime, to see the actual used file,

find it’s truely a “init file” with the “right_to_be_used valid date”,

not a “forecast valid file“, from a “init dir” with lead “24h” or “48h” to the “mpasout.valid_date.nc”, like the “# f_fcst=…” line’s dir and file structure.

so, how are these sample_data generated? and is that ok to use the dir_file_structure like the “# f_fcst=…” line indicated?

thanks.

4

Hi @rqin_624,

For this samples, MPAS initial files are initialized with the GRIB files of either GFS 24 hour forecast or GFS 48 hour forecast.

If you want to use MPAS’s own forecast samples, you can refer the structure of " “# f_fcst=…”.

Hope this helps,

BJ