Radiological • Re: emission rate (CONTROL) and EMITIMES file
Yes, if you are using an emit-times file then we recommend setting the emission rates in the CONTROL file to 0.If you are getting no concentrations then your emit-times file either isn't being read or...
View ArticleDispersion Model • Re: Utilizing Particle Size Characteristics
Hello!You can define different 'species' in HYSPLIT. Each species (pollutant) has it's own emission rate, emission duration, release start...
View ArticleDispersion Model • Vertical diffusion above the boundary layer depth.
I seek clarification of HYSPLIT's treatment of particles/puffs that penetrate the boundary layer and enter the free troposphere (free atmosphere) such as in modelling volcanic eruptions or when the...
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HYSPLIT for PCs • Error testing hysplitplot/tests
Hi, I am trying to verify the installation process by testing hysplitplot. When the run finishes, i get the error message shown in the attached document.Can you please help me with this error? I tried...
View ArticleHYSPLIT for PCs • Re: Error testing hysplitplot/tests
Not sure if we have seen these errors before. What version of HYSPLIT were you installing? The error messages were truncated. It would be more helpful to see the full error messages. Could you post...
View ArticleHYSPLIT for PCs • Re: Datetime issue when plotting backtrajectory
We released a bug fix to https://github.com/noaa-oar-arl/hysplitplot. Use HYSPLITPLOT version 0.9.2 or later. The upgrade instructions are given in the README.md file.Statistics: Posted by sonny.zinn...
View ArticleUsers • mixdepth - mixing depth (or mixing height, in meters)
Hi, I use the R package 'splitR' (https://github.com/rich-iannone/splitr) to retrieve backtrajectories with extended meteorological data. One parameter is mixdepth - mixing depth (or mixing height, in...
View ArticleUsers • Re: mixdepth - mixing depth (or mixing height, in meters)
Please refer to the following HYSPLIT tutorial sections:https://www.ready.noaa.gov/documents/Tu ... _prof.htmlhttps://www.ready.noaa.gov/documents/Tu ... _mixd.htmlStatistics: Posted by sonny.zinn —...
View ArticleDispersion Model • merging ARL file from WRF on PC
Hello! I used GUI interface on my PC to convert WRF NECDF files to ARL. Each ARL file is related to one hour data. If I use multiple ARL one hour data I found the WARNING: "Only one time period of...
View ArticleTrajectory Model • Backward trajectory analysis (questions from a beginner)
Hello, good day to everyone! I am currently a masters student and my thesis study involves backward trajectory analysis. I have searched a lot of software that can be used for the simulation and out...
View ArticleDispersion Model • Re: merging ARL file from WRF on PC
The file_merge program included in your HYSPLIT installation may be used to combine two ARL-formatted meteorological files. The program is located in the exec directory where HYSPLIT is installed, for...
View ArticleGeneral questions on meteorological data needed for HYSPLIT • Error when...
Hello, as the title says, i get an error when trying to access archive, appended or forecast data from FTP server (except for forecast HTTPS Data NOMADS, which works sometimes). I installed hysplit...
View ArticleGeneral questions on meteorological data needed for HYSPLIT • Re: Error when...
I am using HYSPLIT 5.3.0 on a Windows 11 laptop. For a check, I downloaded a GFS 1/4-deg file and saw no error. To diagnose the error you encountered, could you provide us with more details?- Version...
View ArticleDispersion Model • EMITIMES Burned Area
I am using an EMITIMES file to determine smoke plume dispersion from a wildfire. I'm definitely overthinking this, but I had a few questions on what the value should be for burned area. - Since the...
View ArticleDispersion Model • Time of Arrival Graph Data
How does the time of arrival graph get its data? Is this data available to be included in the .txt file that is converted from the .bin file? I am interested in the time of arrival of particles at a...
View ArticleUsers • Re: Using hourly GFS in HYSPLIT
Can anyone answer this questiondownload lagu? I'm looking for a solution because I have the same problem. If anyone has one, please tag me. Thanks a lot.Statistics: Posted by mtomy2008 — February 4th,...
View ArticleHYSPLIT for Mac OS X • HYSPLIT unable to display trajectories
Hi I am trying to run HYSPLIT as per the tutorial. I have installed HYSPLIT and following the tutorial I have executed setup run and run steps. However, when I want to view the trajectory and click on...
View ArticleHYSPLIT for Mac OS X • Re: HYSPLIT unable to display trajectories
Please refer to another post with the same topic at viewtopic.php?p=7592#p7592Statistics: Posted by sonny.zinn — February 5th, 2024, 7:54 am
View ArticleUsers • Issue with daily trajectories and meteorological data
Hi there. I'm new to using Hysplit and I'm attempting to run cluster analysis on a series of 120 hour daily trajectories, with the goal of looking at changes in relative humidity along the profiles....
View ArticleDispersion Model • running web-based dispersion model for more than 24 hours
I've started to use the web-based HYSPLIT dispersion model with GDAS 1 degree data. I'm trying to run the model forward in time for 96 hours using archive data and the unknown material option....
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