Save 3D output in PPM

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joaolucas
Posts: 12
Joined: May 17th, 2022, 2:30 pm
Registered HYSPLIT User: No

Save 3D output in PPM

Post by joaolucas »

As I have seen, all the default hysplit outputs are 2D height-averaged fields.
Is there any way to save the simulations output in form of a 3D plume ?
It would be better if would already outputted in PPM instead of kg/m^3.
Thanks in advance.
alicec
Posts: 439
Joined: February 8th, 2016, 12:56 pm
Registered HYSPLIT User: Yes

Re: Save 3D output in PPM

Post by alicec »

If you want to get mixing ratios as output rather than concentration in mass/volume then you can use the ichem=6 setting in the SETUP.CFG file.
See here for details.
https://www.ready.noaa.gov/hysplitusersguide/S628.htm

to get a 3d concentration grid, simply define more than one height level in the definition of your grid.
see here
https://www.ready.noaa.gov/hysplitusersguide/S313.htm
this example shows a grid with just one level from 0 to 100 m. However to get more levels simply change the num of vertical level line to the number you desire and then add more to the line that indicates the height of the levels.
Sethlarke
Posts: 1
Joined: September 9th, 2024, 4:00 am
Registered HYSPLIT User: No

Re: Save 3D output in PPM

Post by Sethlarke »

By using concgrid in your CONTROL file, HYSPLIT can produce 3D concentration grids. This will output concentration levels at multiple vertical levels, providing a 3D representation of the plume.
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