We are very excited to announce the launch of our new spectral database! SoFi can now download reference profiles directly from our website and fit it to your dataset. Please check out the newest SoFi version!

We are very excited to announce the launch of our new spectral database! SoFi can now download reference profiles directly from our website and fit it to your dataset. Please check out the newest SoFi version!

With great pleasure, we announce that there will be an in-person workshop in Baden, Switzerland. The workshop takes place 13.2. – 16.2.2023. Participants will learn all about PMF and SoFi and have the chance to work on their own (or provided) dataset with instant support from us.
Find out more here.


We are at the IAC 2022 in Athens. Come by our booth (#21) and have a chat with us. We are looking forward to seeing you!
SoFi 8.2.1 and SoFi 9.1.1 are now available and can be downloaded from our download area. Check out the history for more information.
We released a new SoFi version (available from our download section). Besides some bug fixes, SoFi now includes a wind analysis feature. Wind and polution roses as well as polar frequency plots (joint probability density and nonparametric wind regression (NWR)) are available in SoFi.
