Bugs • Re: Inconsistent altitude selection
There are two namelist parameters that control trajectory heights. They are KMSL and KAGL for specifying input height and output height, respectively. Description for them are found in...
View ArticleConversion programs • Re: ERA5 dataset
Hi everyone!As you well know, ERA5 has been updated! And I need to know if the era52arl.f program still works with the ERA5 update. I would appreciate any information.Best regards!CharlieStatistics:...
View ArticleTrajectory Model • Interpolated meteorological variables along trajectories
Hello!I am in doubt as to which variables can be interpolated along the trajectories. Is it only a limited number of variables that can be interpolated? or can it be any? In case it is a limited...
View ArticleTrajectory Model • Re: Interpolated meteorological variables along trajectories
Please refer to https://www.ready.noaa.gov/hysplitusersguide/S410.htm. By setting TM_PRES, TM_TPOT, ..., and TM_RELH to unity in your SETUP.CFG, pressure, potential temperature, ..., and relative...
View ArticleGeneral questions on meteorological data needed for HYSPLIT • Re: Effect of...
Could you be more specific about what you expect to see versus what you are seeing?Can you attach a screenshot?Statistics: Posted by alicec — December 3rd, 2024, 7:59 am
View ArticleBugs • Re: Particles not wrapping around with global met fields
Same issue happens with GDAS1 met data, so this seems to be a general problem with global met fields and HYSPLIT 5.3? Particles hit the "boundary" of the grid, and die.Statistics: Posted by mneish —...
View ArticleHYSPLIT for Mac OS X • Re: Concentration model non-existent LANDUSE.ASC
I am currently experiencing this issue on MacOS. I am also trying to do the tutorial: 2.3 Test Air Concentration Calculation. I tried removing those *.ASC files to unblock me, but then I get a new...
View ArticleBugs • Re: ERROR: BlueSky module fuelbeds failed
The legacy prescribed burn is brought back. Please try the "Prescribed Burn - Legacy version" option at the READY website.Statistics: Posted by sonny.zinn — January 6th, 2025, 3:03 pm
View ArticleTrajectory Model • Re: Back-trajectory calculations taking significant time
If you are having trouble with computation time, and you're using a standard hysplit install (i.e., not parallel), the most likely culprit is your processor's single-core performance. Hysplit will...
View ArticleConversion programs • era52arl updated to new ERA5 format
Hi everyone!As you well know, ERA5 has been updated! And I need to know if the era52arl.f program still works with the ERA5 update. I would appreciate any information. Has anyone used era52arl to...
View ArticleWildfire Smoke • Release type
I'm using the online version of the Hysplit model to study a wildfire, and I'm unsure about the "release type" selection. Should I choose "prescribed burn" or "unknown material" for a more accurate...
View ArticleWildfire Smoke • Re: About download of HYSPLIT Smoke forecast histrorical data
Please point your web browser to https://www.ready.noaa.gov/data/archive ... nal/arcweb (for CONUS), https://www.ready.noaa.gov/data/archive ... ska/arcweb (for Alaska), and...
View ArticleHYSPLIT for PCs • Max file size for CLUSTER output file?
I've been reaching the limits of the clustering program, as I am trying to cluster many years of contiguous trajectories. I have hit some sort of limit to the CLUSTER file size, and was wondering...
View ArticleConversion programs • Re: era52arl updated to new ERA5 format
Edited on March 3rd 2025:I have updated my original post to prevent confusion. The following is my present answer, while the original question is below.Current answerHi Charlie,I downloaded ERA5 data...
View ArticleRepositories of HYSPLIT formatted data • tiles for HRRR forecast data
Hi there, are there tiles of HRR forecast data, similar to the NAM where it broken down by SE, NE, etc.?Statistics: Posted by jdash — March 7th, 2025, 3:07 pm
View ArticleRepositories of HYSPLIT formatted data • Re: tiles for HRRR forecast data
No tiles are created for HRRR. What the use case would be for HRRR tiles? I am just curious.Statistics: Posted by sonny.zinn — March 10th, 2025, 7:19 am
View ArticleUser Applications • Re: stilt mode and varsiwant
Hi,that is not a problem. The HYSPLIT output writing routine is written so that the column order of the output files matches the list you give as VARSIWANT.Best,MoritzStatistics: Posted by...
View ArticleTrajectory Model • No Trajectory Display output
Hello! I have completed the run for the HYSPLIT model. I am trying to visualize the results but when I press execute display nothing pops up in the Xming terminal. There are also no errors in the log....
View ArticleTrajectory Model • Re: No Trajectory Display output
Are you using HYSPLIT on a Windows PC? Also are you using the Python graphics option provided by the HYSPLIT GUI?Statistics: Posted by sonny.zinn — March 20th, 2025, 8:25 am
View ArticleConversion programs • ERA5 data for HYSPLIT
Hello,Thanks for providing this great tool.I am trying to use ERA5 data to drive HYSPLIT simulations. I have downloaded a day's worth (1 Jan 2021) of hourly ERA5 data...
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