HYSPLIT Workshop • HYSPLIT Workshop
Hello. I would like to know more about the developers and hoe to contact them officially in order to organize a workshop for my team. My association can pay for this workshop.RegardsStatistics: Posted...
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Conversion programs • Re: ERA5 dataset
I'm not sure I understand the trouble you are having with downloading the files. How are you trying to download them?Are you using the python code or other way? Can you describe this problem in more...
View ArticleHYSPLIT Workshop • HYSPLIT workshop
Good morning. Who can I contact to organize a workshop for my team?Statistics: Posted by Mon_82 — July 27th, 2025, 11:10 pm
View ArticleDispersion Model • WARNING metini: WVERT=.FALSE. and Z_FLAG=5
Hello,I'm running Hysplit dispersion model with WRF meteorological data, converted to ARL, as input. After running Hysplit, I found the warning message "WARNING metini: WVERT=.FALSE. and Z_FLAG=5...
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Radiological • Low Deposition Results
Good evening,In order to validate my understanding of how to set up and use HYSPLIT for deposition modelling, I have been trying to run a test case for Fukushima just for deposited Cs-137. However, I...
View ArticleGeneral questions on meteorological data needed for HYSPLIT • Using windrose...
Hi,I am trying to plot windrose diagram plots at certain levels. I would like to look at wind profiles over several years and then plot the windrose diagrams. I have tried using the windrose command...
View ArticleGeneral questions on meteorological data needed for HYSPLIT • Re: Using...
Please see https://www.ready.noaa.gov/hysplitusers ... m#windrose for the command-line options for the WINDROSE program. WINDROSE takes a meteorological data file using two arguments, namely, -d and...
View ArticleDispersion Model • Re: WARNING metini: WVERT=.FALSE. and Z_FLAG=5
There are couple of reasons that HYSPLIT resets Z_FLAG to 1 even you use WRF files with Z_FLAG=5. One of them is WVERT=false or being reset to false. Your message file shows WVERT=F. So, set...
View ArticleHYSPLIT for PCs • Can you make the starting point star smaller or not appear?
Hello everyone,I am running backtrajectories through Hysplit from the command line and my trajectories and plots are coming out fine, except for the starting point star. It is a bit large for my...
View ArticleHYSPLIT for PCs • Re: Can you make the starting point star smaller or not...
The star will not be shown if the -s0 option is used with the TRAJPLOT program.Statistics: Posted by sonny.zinn — August 8th, 2025, 5:40 am
View ArticleUsers • Re: Documentation for Meteorology Output Along Trajectory
What are the units for pressure? Those are not listed at the site given in the post.Statistics: Posted by cg gc — August 10th, 2025, 5:12 am
View ArticleUsers • Adding output to PARTICLE_STILT.DAT
If possible, is there a way to add variables such as "SIGU" to the variables output in PARTICLE_STILT.DAT? I am a registered user with the source code, so I ask which files need to be edited to get...
View ArticleHYSPLIT for PCs • HYSPLIT PC Installer Corrupt
I have tried to install the latest HYSPLIT on two Windows 11 PCs this summer, both of which were fresh installs, and was never able to get the .exe installer to work despite many download attempts....
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User Applications • HYSPLIT + ERA5
Is my .cfg correct to convert ERA 5 to ARL?CODE: &SETUPnumatm = 6,atmgrb = 't', 'u', 'v', 'w', 'r', 'z'atmcat = 130, 131, 132, 135, 157, 129atmnum = 130, 131, 132, 135, 157, 129atmcnv = 1.0, 1.0,...
View ArticleGeneral questions on meteorological data needed for HYSPLIT • Making some...
In my situation the GDAS met data overestimate the wind speed compared to the actual wind speed. Is there a way to alter the GDAS data for one location over a short period in a simple way, without...
View ArticleConversion programs • Which GRIB2 inputs are used to build NOAA’s HRRR sigma...
Hi there,I am trying to download a whole batch of ARL files for use in a multi-year HYSPLIT back-trajectory pollution analysis. To avoid speed limitations on the ARL archive server, I’m attempting to...
View ArticleGeneral Comments • HYSPLIT download not digitially signed
I have been using HYSPLIT in batch mode on my Windows PC. Our IT department has told me that I will no longer be allowed to use it because the current version (HYSPLIT_win64U_v5.3.0) does not include...
View ArticleGeneral Comments • Re: HYSPLIT download not digitially signed
We could look into digitally signing the HYSPLIT package but it may take time to do so.Statistics: Posted by sonny.zinn — September 12th, 2025, 6:58 am
View ArticleBugs • Wrapping particles more than once around the global longitudes
Version: 5.4.2In global domain, when particles are near the poles, sometimes particles can wrap around the longitude band more than once. There's already some code in adv2nt and adv3nt to handle...
View ArticleBugs • Division by zero problems with global grid that includes poles
Version: 5.4.2This may be very specific to my setup, but I'm encountering some numerical issues when using a global grid where the +90/-90 latitudes are included. Specifically, I'm using ERA5 data...
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