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by mkrupcale
June 17th, 2021, 4:23 pm
Forum: 7. Air concentration calculations
Topic: Particle velocity and Stokes number assumptions
Replies: 4
Views: 17403

Re: Particle velocity and Stokes number assumptions

For inertial particles, the main effect is due to gravitational settling. Yes, I understand that inertial particles have gravitational settling, but that is not really my question. My question has to do with where the single-phase flow Langevin model used by HYSPLIT breaks down. To give you a bette...
by mkrupcale
June 17th, 2021, 2:01 pm
Forum: 7. Air concentration calculations
Topic: Particle velocity and Stokes number assumptions
Replies: 4
Views: 17403

Particle velocity and Stokes number assumptions

I have a few questions about some of the basic assumptions of the Langevin model used by HYSPLIT: The (virtual or Lagrangian) particle velocity is given by the sum of the mean fluid velocity (from the meteorological data) and the turbulent fluid velocity component (determined using the [discretized]...
by mkrupcale
June 15th, 2021, 9:45 am
Forum: Developers
Topic: [PATCH] conc2cdf Improvements
Replies: 5
Views: 31750

Re: [PATCH] conc2cdf Improvements

I'm currently participating in the HYSPLIT 2021 Workshop using the latest version (v5.1.0), and I'd like to just reiterate the request to update my name in the source code: I've looked through the changes (svn revision 934), and I couldn't help but notice that my name appeared in `cmaq/con2cdf3.f`, ...
by mkrupcale
February 23rd, 2018, 12:27 pm
Forum: Developers
Topic: [PATCH] conc2cdf Improvements
Replies: 5
Views: 31750

Re: [PATCH] conc2cdf Improvements

You're quite welcome--I'm glad I could make some improvements. The output of all emission source origins is also a good addition. I've looked through the changes (svn revision 934), and I couldn't help but notice that my name appeared in `cmaq/con2cdf3.f`, `con2cdf4.f`, and `document/updates.txt`, w...
by mkrupcale
January 17th, 2018, 12:19 pm
Forum: Developers
Topic: [PATCH] conc2cdf Improvements
Replies: 5
Views: 31750

[PATCH] conc2cdf Improvements

Introduction Hello HYSPLIT developers, I've made some changes to the `conc2cdf` program which converts the HYSPLIT `cdump` concentration output to the NetCDF format, and I figured I'd share them with you in the case that you'd be interested in incorporating them upstream. The patches are licensed u...

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