HYSPLIT Forum: hysplitbbs.arl.noaa.gov

I think it may be as simple as removing the space in your -i and -o options.
$ ./era52arl -iera5_surface.grib -oDATA.ARL

### 1. What is the appropriate model top for Hysplit + ERA5? Is it possible to provide a general answer to this question? If I remember correctly, the model top in GDAS was 15500 when using it on the web. Are there any disadvantages to using a similar setting or something like 20000 for my European ...

We do not know of anyone who has a converter for this data but we suggest you could modify the WRF data converter.

You can use the vmixing utility for this.
https://www.ready.noaa.gov/HYSPLIT_vmixing.php

Can you provide more details about your process.
For instance can you convert one WRF netcdf file to ARL format correctly?
Which program are you using for the conversion to ARL format?
Which files are you concatenating and how?

HYSPLIT and FlexPart are the same type of model - Lagrangian Atmospheric Transport and DIspersion model and have similar capabilities. If you do a literature search, you will see they have been used by the research community in very similar ways.
FlexPart is an open source model with the main ...

Interesting. This is probably because the computational particles deposited on the water surface are not undergoing dispersion, only advection by the mean winds. With no dispersion, dilution of the material will be much less.

https://www.ready.noaa.gov/hysplitusersguide/S441.htm#sfc_water ...

Could you be more specific about what you expect to see versus what you are seeing?
Can you attach a screenshot?

Yes, it's almost certainly possible. The general steps to converting any meteorological dataset are the following

1. Identify the projection. HYSPLIT currently can handle a regular latitude longitude grid or conformal projection.
2. identify how the vertical levels are represented. For instance ...

We do not maintain a converter specifically for ICON because we do not have regular access to it.
We have assisted in helping people get the api2arl to work for ICON grib2 files.
You could probably modify the arw2arl to work with other netcdf files.

Generally it takes a bit of knowledge of the ...