Kühlungsborn, 22.06.2026 - The Radar Remote Sensing department at the Leibniz Institute of Atmospheric Physics at the University of Rostock is excited to announce the commencement of operations at the MAARSY 3D second receive-only (M3D2) site, located near Brøstadbotn, Norway. This radar receiver site completes the MAARSY 3D system and provides tri-static measurements of polar mesospheric summer echoes (PMSE) in combination with the MAARSY main site located near Andenes, Norway, and the first MAARSY 3D receive-only (M3D1) site located near Stø, Norway. The tri-static measurements will enable investigations into the small-scale atmospheric dynamics near the summer mesopause through radar imaging techniques and 3D wind field reconstructions. Data from the MAARSY and Brøstadbotn sites are shown in the images.

This project was made possible with many contributions from different people and partner institutions. The site installation was done by Dr. Ralph Latteck, Prof. Toralf Renkwitz, Christian Adami, Dr. Devin Huyghebaert, and Jens Wedrich, (shown in picture from left to right) with the receiver system design/construction and remote support from Nico Pfeffer and Arved Viehweger, and cable manufacture by Thomas Barth. The group would like to thank Andøya Space, and specifically Rory McDougall, for all the help with site selection and logistics. We also thank the NMK Dyrøy club and Tommy Simonsen for their extensive support and help with the site.