HYSPLIT Forum: hysplitbbs.arl.noaa.gov

Please make sure you have the latest version of era52arl.f
I have added the most recent version to the github repository so you may get it from there as well.
https://github.com/amcz/hysplit_metdata

Try using the grib_dump utility with eccodes to see what is in your grib file.
https://confluence ...

If you set ndump < 0, particle positions will be written at each time step.
https://www.ready.noaa.gov/hysplitusersguide/S627.htm
For example, you will get PARDUMP in every minute if you set the time step to 1 minute (delt=1) and ndump=-1 for your run.


I can see how setting ndump < 0 can be ...