Differences in concentration compared to tutorial

Topics about the HYSPLIT dispersion model.
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sampls
Posts: 10
Joined: March 1st, 2022, 1:59 am
Registered HYSPLIT User: No

Differences in concentration compared to tutorial

Post by sampls »

Hi there! I have recently installed HYSPLIT v5.1.0 for CentOS, and I am running through the tutorial using the bash scripts included in the Tutorial zip file. I have noticed some differences between my results and the results shown in the tutorial, though I am using the tutorial version that matches with the version of HYSPLIT that I installed. I have attached my results (wildfire smoke results, titled ### ./cust_smoke.sh ###) and the tutorial results (wildfire smoke tut) for the wildfire smoke tutorial simulation. Can anyone let me know what causes this? Thanks!
Attachments
wildfire smoke tut.png
wildfire smoke results.png
alicec
Posts: 418
Joined: February 8th, 2016, 12:56 pm
Registered HYSPLIT User: Yes

Re: Differences in concentration compared to tutorial

Post by alicec »

Some differences in dispersion runs are expected because of differences in the random number generation.
https://www.ready.noaa.gov/documents/Tu ... _eqns.html
sampls
Posts: 10
Joined: March 1st, 2022, 1:59 am
Registered HYSPLIT User: No

Re: Differences in concentration compared to tutorial

Post by sampls »

Thank you!
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