Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 8
Articles | Volume 19, issue 8
https://doi.org/10.5194/amt-19-2763-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-2763-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 8
Research article
 | 
23 Apr 2026
Research article |  | 23 Apr 2026

Studying anomalous propagation over marine areas using an experimental AIS receiver set-up

Laura Rautiainen, Milla M. Johansson, Mikko Lensu, Jani Tyynelä, Jukka-Pekka Jalkanen, Mikael Hasu, Ken Stenbäck, Harry Lonka, and Lauri Laakso

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Latest update: 23 Apr 2026
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Short summary
We present an experimental Automatic Identification System (AIS) receiver set-up to study anomalous signal propagation over coastal and marine waters in the northern Baltic Sea. Anomalous atmospheric conditions can allow for the AIS messages to be received from farther distances than under normal conditions. The results show that under anomalous conditions, the messages can be received up to 600 km away and have both diurnal and seasonal cycles.
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