Thanks Patrick and Simon for the suggestions. I still need to look into these 
examples more in detail, but at a quick glance it seems a good starting point 
to experiment with.
And yes, these controlfiles seem to be available only in the development 
version of ARTS, but I assume I can use them with the latest stable version as 
Thanks again,


On Nov 29, 2019, at 1:40 AM, Simon Pfreundschuh 
<<>> wrote:

Dear Paolo,

If you want to set the PND field explicitly you can find an example of how this 
done in the controlfile controlfiles/artscomponents/radar/TestIyActive.arts*. 
In particular,
there is a pnd field in the file controlfile 

Alternatively, you can let ARTS compute the PND field for you by defining 
scattering species with
corresponding PSDs. An example of how this is done can be found in the 

I hope this helps you to get started with the calculations otherwise don't 
to ask.



*This is the case in the development version of ARTS. I am not sure whether 
these were available
already in the latest release.

 on behalf of PAOLO VEGLIO 
Sent: Wednesday, November 27, 2019 5:26:50 PM
Subject: [arts-users] cloudy simulations with ARTS

I’m currently trying to simulate measurements for the Ice Cloud Imager (ICI) 
that will be on board the EUMETSAT Polar System - Second Generation (EPS-SG) 
satellite using ARTS.
With the help of some of the controfiles in the classroom_exercises folder I 
was able to create clear sky ICI spectra. Now I’d be interested in adding 
clouds to my ICI simulations, but I’m struggling with the setup of the 
controlfiles. I downloaded the “StandardHabits” database but I couldn’t find 
any template to help me write the particle density number file that is required 
along with the scattering properties.
Would it be possible to have a sample pnd file and maybe also a controlfile to 
make sure I’m setting everything up correctly?
Thanks in advance for any help with this.

Paolo Veglio

Paolo Veglio, Ph.D.
Space Science and Engineering Center
University of Wisconsin - Madison
1225 W. Dayton St.
Madison WI 53706, USA

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