HYSPLIT Forum: hysplitbbs.arl.noaa.gov

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 using a GDAS1 wind file I have, however when I try to run it, it states it is unable to find the ...

Hi,

I have downloaded some days of the GFS025 data from the interface on the READY site for volcanic ash simulations. I was wondering how to either download multiple days at a time or how to combine multiple days of data?

Thank you!

Hello,

I am curious as to where the particle shape factor input from 1-2 comes from for the Hysplit model? The particles I use for a volcanic plume have a shape factor of 0.43. How would I convert the 0.43 shape to fit within Hysplit's 1-2 shape factor input?

Best,

Kyle

Hi,

I understand how HySPLIT calculates settling velocity for the simulations, but I was wondering how do you change the velocity of a particular particle size within a command script, can you have different settling velocities for different particle sizes? Or is there a way to change the drag ...

Hello,

I was wondering if anyone knows how HySLIT generates smaller resolution structures within the Plumes when the meteodata file's resolution is much higher.
Example: If I am using ERA5 meteodata at 27 km grid resolution and I run HySPLIT with a 1 km resolution, it appears small structures form ...

Hello,

I have been running a coupled HySPLIT model with a volcanic plume model and our volcanic depositions are extremely narrow, to where it does not seem there is really any lateral diffusion within the plume. I was wondering if there is a way to change the lateral diffusion within the plume? I ...

Hi,

Thanks. I will ask my question there and I may have gotten confused, but I though MeteoMap is part of MeteoInfo?

Best,

Kyle

Hello,

This seemed to work. Slightly disappointing I don't get the progress update on the xwindow anymore.

Best,

Kyle

Hi,

I have been using a coupled HySPLIT model with a volcanic dynamic plume model. I have been having this re-occurring issue where my deposit shows up fine on the created .ps files created from HySPLIT, but when I try to upload the data into MeteoInfo the projection is off. Is there a flag I need ...

Hi,

When I try to download the meteorlogical data through the GUI I receive an error stating the no such file or directory. Is there a place I need to put in the file directory or url?

Thank you,

Kyle

couldn't execute "ftp": no such file or directory
couldn't execute "ftp": no such file or ...