Trajectory frequency and cluster analysis
Posted: November 13th, 2012, 10:19 am
Hello,
I am running HYSPLIT on my PC using the GUI. I want to display trajectory frequencies. I have no problem creating the INFILE, but I'm not sure how to proceed. I've tried to define the grid resolution under concentration setup (concentration grid setup). Is this the correct place to define the grid? If so, how do I then run the trajectory frequency analysis? The help file says that the gridded binary output file is in the HYSPLIT concentration format, and that the trajectory frequency results can be plotted in the concentration routine. Can you provide more detailed directions as to how this can be done?
I'm also doing trajectory clusters, and I believe I need to have each trajectory as its own tdump file. I've tried using the trajectory run daily, and the directions listed on the questions page at http://www.arl.noaa.gov/faq/pc23.html, but neither of these are producing individual files per trajectory. Am I doing something wrong, or is there another way to calculate multiple trajectories with the output in individual files for each trajectory? I've been downloading the trajectories as individual files and can get the trajectory clusters to work, but it's slow.
I am running HYSPLIT on my PC using the GUI. I want to display trajectory frequencies. I have no problem creating the INFILE, but I'm not sure how to proceed. I've tried to define the grid resolution under concentration setup (concentration grid setup). Is this the correct place to define the grid? If so, how do I then run the trajectory frequency analysis? The help file says that the gridded binary output file is in the HYSPLIT concentration format, and that the trajectory frequency results can be plotted in the concentration routine. Can you provide more detailed directions as to how this can be done?
I'm also doing trajectory clusters, and I believe I need to have each trajectory as its own tdump file. I've tried using the trajectory run daily, and the directions listed on the questions page at http://www.arl.noaa.gov/faq/pc23.html, but neither of these are producing individual files per trajectory. Am I doing something wrong, or is there another way to calculate multiple trajectories with the output in individual files for each trajectory? I've been downloading the trajectories as individual files and can get the trajectory clusters to work, but it's slow.