Error reading and generating trajectories of ERA interim converted ARL data

[ashish_air]

The problem I am facing is to check and generate trajectories from the converted meteorological files of ERA-interim daily data. As instructed in the manual I downloaded (2D(surface) 3d (upper air- all pressures for which data is available) and invariant data; GRIB format files), both analysis and forecast datasets. I was able to successfully convert it into ARL format.
But unfortunately while checking the meteo info file or on running the trajectories model I have unable to do so.

The log files of the error I obtained reads,
1. Checking ARL file
23
23
while executing
"exec $exec_dir/chk_file <<$input >chkfile.txt"
(procedure "run_chkfile" line 13)
invoked from within
"run_chkfile $gdir $gbase"
invoked from within
".metfile.bot.save invoke"
("uplevel" body line 1)
invoked from within
"uplevel #0 [list $w invoke]"
(procedure "tk::ButtonUp" line 24)
invoked from within
"tk::ButtonUp .metfile.bot.save"
(command bound to event)


2. On generating Trajectories
ERROR metset: meteorological data time interval varies. Check input meteo file.
Changed from 360 min to -44280 min
At day/hr 1 0
23
while executing
"exec $exec_dir/hyts_std.exe"
(procedure "make_traj" line 83)
invoked from within
"make_traj"
invoked from within
".autotraj.bot.save invoke"
("uplevel" body line 1)
invoked from within
"uplevel #0 [list $w invoke]"
(procedure "tk::ButtonUp" line 24)
invoked from within
"tk::ButtonUp .autotraj.bot.save"
(command bound to event)
I would be highly grateful if you could help me resolve my issue.

[alicec]

Please see these threads:
viewtopic.php?f=25&t=1206&p=3296&hilit=chk_file#p3296
viewtopic.php?f=25&t=1229&p=3389#p3389
viewtopic.php?f=14&t=202&p=3781#p3781

Please try the ecm2arl utility - you will need to run it from the command line.
There is code which is called ecm2arl in the hyspit4/exec directory which you can run from the command line.
ecm2arl -i(grib file with pressure/3d fields) -s(grib file with analysis surface fields) -e(grib file with forecast surface fields) -c(constant grib data)

Also there are utility programs profile and chk_file that you can use to check your meteorological file.