HYSPLIT Forum: hysplitbbs.arl.noaa.gov

Please see the HYSPLIT tutorial, specifically Section 5.4 https://ready.arl.noaa.gov/documents/Tutorial/html/index.html If you need more customization than the GUI provides, then you can use the scripts provided with Section 5.4 as a template for creating your own scripts to run trajectories at the ...

SIGH and SIGW are the relevant parameters for the puffs. SIGH is the horizontal puff width. SIGW is the vertical width if you are using 3d puffs (initd=1 or 2). https://ready.arl.noaa.gov/hysplitusersguide/S622.htm SIGV is only relevant for particles, not puffs. See below some example output from pa...

A description of file formats can be found here (scroll to the end). https://ready.arl.noaa.gov/hysplitusersguide/ There are also a few utility programs included with HYSPLIT which will convert some of the binary files to ascii. con2asc converts the cdump files to ascii par2asc converts particle out...

It's difficult to trouble shoot a segmentation fault on someone else's system, so I'm not sure how helpful I can be.
What compiler are you using?

Can you send me the command you are using to download the files with the python script?

What version of HYSPLIT are you using? Can you try running the era52arl without any inputs ./era52arl Should give you this: Usage: era52arl [-options] One pressure level file and at least one surface file must be input. The surface file(s) should have all the time periods that pressure level files h...

We provide a tutorial which is an excellent way to familiarize yourself with HYSPLIT.

https://ready.arl.noaa.gov/documents/Tu ... index.html

The problem is that velocity is converted to grid points per unit time at each met grid point and then the velocity at the computational particle position (in grid points per unit time) is calculated. This causes issues at the poles because (A) the grid spacing at the pole is zero, so velocity in gr...

The tutorial contains some help and many examples for scripting runs.
https://ready.arl.noaa.gov/documents/Tu ... batch.html

By default HYSPLIT does set a minimum mixing depth (150m or 250m depending on the version of HYSPLIT you are using). Please see the documentation on why HYSPLIT uses this default. https://www.ready.noaa.gov/hysplitusersguide/S625.htm Mixed Layer Depth Computation KMIXD is used to control how the bou...