HYSPLIT Forum: hysplitbbs.arl.noaa.gov

Thank you both for the replies. I am trying to use parmerge to combine my PARDUMP files, listed below. This is the command I'm using in the directory with my files: `/hysplit.v5.1.0_UbuntuOS20.04.2LTS/exec/parmerge -iPARDUMP.00* -oPARDUMP` -rw-rw-r-- 1 dlu dlu 26136 Oct 12 09:24 PARDUMP.001 -rw-rw-r...

Thank you for the response. You mentioned that PARDUMP files are not considered the main HYSPLIT outputs -- in that case, what is? I've been using the parhplot executable to get results from the last snippet I sent (generates GIS_part_001_ps.txt, GIS_part_002_ps.txt, GIS_part_003_ps.txt, GIS_part_00...

Thank you for the links. After reading through them, it sounds like DELT should depend on the meteorological conditions: "The fixed time step option should only be used when strong winds in regions not relevant to the dispersion simulation (perhaps the upper troposphere) are causing the model to run...

Hi, thank you for the response. I didn't receive a notification so I wasn't able to see it until now. Could you please elaborate on what the time steps throughout the hour means? How long is each time step, and how many particles is it assuming I'm releasing per time step? I assumed that if I were t...

Hi, I have multiple power plant locations and stack heights that I'd like to compute a dispersion simulation for. In general, I'm looking for guidance on the most efficient way to generate results for all n of my power plant locations over the same time period (dispersion for 1 hour long every 6 hou...

I'm learning how to use the dispersion model and want to understand how to release an exact number of particles from a starting location. I am testing the starting location: (lat 31.0069, lon -88.0103, hgt 182.88). For a given day at hour 00, my goal is to follow n particles over the next 6 hours. F...