Search found 91 matches

by christopher.loughner
June 26th, 2025, 12:06 pm
Forum: Bugs
Topic: ADD_DATA from the EXEC collection does not add station data (out of boundary error)
Replies: 2
Views: 667

Re: ADD_DATA from the EXEC collection does not add station data (out of boundary error)

Hi. The add_data utility is not built to handle ARL files that have a latitude and longitude coordinate system, so it won't work for global ARL files. We will consider adding this functionality into a future HYSPLIT release.
by christopher.loughner
May 29th, 2025, 5:04 pm
Forum: Users
Topic: HYSPLIT not proceeding when using EMITIMES
Replies: 2
Views: 2942

Re: HYSPLIT not proceeding when using EMITIMES

The EMITIMES file you attached is the same one from the tutorial. The dates don't match up with your CONTROL file.
by christopher.loughner
May 29th, 2025, 4:33 pm
Forum: Conversion programs
Topic: ACCESS-G to ARL conversion
Replies: 1
Views: 3519

Re: ACCESS-G to ARL conversion

I am not aware of anyone working on an ACCESS-G to ARL convertor. If you develop one, we would be happy to include it in future HYSPLIT releases for other users to use.
by christopher.loughner
May 29th, 2025, 4:29 pm
Forum: Bugs
Topic: When using STILT (ichem=8), cmass gets forced to 1 (mass) even when you set it to 0
Replies: 1
Views: 5759

Re: When using STILT (ichem=8), cmass gets forced to 1 (mass) even when you set it to 0

Correct, HYSPLIT forces CMASS=1 when run with ICHEM=8. However, running with ICHEM=8, particles are still divided by the air density to output a mixing ratio output field.
by christopher.loughner
May 15th, 2025, 3:02 pm
Forum: Users
Topic: Running STILT Configuration Using User-Defined Meteorology
Replies: 1
Views: 9187

Re: Running STILT Configuration Using User-Defined Meteorology

Your CONTROL file is setup to write average concentrations every 0 hours to the cdump file, which can't be done. Change your CONTROL file to the following to write out average concentrations every 13 hours: 25 03 24 22 1 40.0000 -90.0000 150.0 -13 0 10000.0 1 /storage/group/zrb5027/default/Permian/j...
by christopher.loughner
January 29th, 2025, 10:18 am
Forum: Bugs
Topic: Particles not wrapping around with global met fields
Replies: 6
Views: 13700

Re: Particles not wrapping around with global met fields

Are you running HYSPLIT with Linux or Windows executables? Updated source code and executables for Linux are now available on Ready. This update is Version 5.3.4.
by christopher.loughner
January 27th, 2025, 11:08 am
Forum: Bugs
Topic: Particles not wrapping around with global met fields
Replies: 6
Views: 13700

Re: Particles not wrapping around with global met fields

Thank you! I was able to reproduce your bug, found when and where this entered into the code, and created a bug fix for this issue. This bug occurs when running a dispersion simulation with IDSP=2 for HYSPLIT versions 5.3.0, 5.3.1, 5.3.2, and 5.3.3. We are currently putting together new HYSPLIT dist...
by christopher.loughner
January 14th, 2025, 5:49 pm
Forum: Bugs
Topic: Particles not wrapping around with global met fields
Replies: 6
Views: 13700

Re: Particles not wrapping around with global met fields

Hi, I was able to successfully use HYSPLIT Version 5.3.0 to run a backward trajectory simulation and a backward dispersion simulation that passed through the dateline with a 1 degree GDAS file that is archived at NOAA ARL (https://www.ready.noaa.gov/data/archives/gdas1/). For dispersion simulations,...
by christopher.loughner
August 22nd, 2023, 8:40 am
Forum: Dispersion Model
Topic: Vehicle emission concentration
Replies: 5
Views: 39028

Re: Vehicle emission concentration

1) For area sources, you want to use an EMITIMES file. See directions on how to setup an EMITIMES file in the user guide: https://www.ready.noaa.gov/hysplitusersguide/S417.htm Creating and using an EMITIMES file is also discussed in the online HYSPLIT Basic Tutorial: https://www.ready.noaa.gov/HYSPL...
by christopher.loughner
October 31st, 2022, 2:58 pm
Forum: Dispersion Model
Topic: WRF27 average wind
Replies: 2
Views: 8043

Re: WRF27 average wind

Thanks for letting us know about these files. We updated these files and they are now available on our archive.

Go to advanced search