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Staff photo Urban Brändström

Urban Brändström

Space physicist, optical auroral research. Head of observatory at Swedish Institute of Space Physics, Kiruna Sweden.



Works at

Affiliated as research fellow at Department of Physics
Institutet för rymdfysik, Kiruna, - Institutet för rymdfysik, IRF, 98128 Kiruna

Works at Swedish Institute of Space Physics (IRF), Kiruna, Sweden, mainly with low-light spectroscopic imaging of aurora and related phenomenae. PI for ALIS (Auroral Large Imaging System, 1993-2019) and its successor ALIS_4D 2020-. ALIS_4D is a collaborative project between IRF and Umeå University. Overlapping fields of view enables reconstruction of the 3D volume emission with high spatial and temporal resolution by the use of tomography-like methods.

Head of IRF Observatory (long-time monitoring measurements by All-sky cameras, Magnetometers, Riometers, Ionosondes, Infrasound microphones and atmospheric trace-gas measurements) with up to 60 years long time-series.

Affiliated to Physics and ARCUM at Umeå University

Main scientific achievement: Developement, design and operation of the Auroral Large Imaging System (ALIS) 1990–present. Highlights from ALIS include: First unambiguous observation of radio-induced optical emissions at high latitudes (1999); observation of water in Leonid meteor trails (2002); first unambigous observation of radio-induced optical emissions in N 2 + at 4278 Å (2002); first observation of optical effects duringr X-mode HF-pumping (2012).
Scientific interests: Ionospheric modification experiments, Auroral morphology and dynamics. Scaling of auroral phenomena.

Experiences: Low-light imaging, detector technologies (CCD, ICCD, EMCCD), programming (C, assembler, php, etc.) and electronics. Responsible for European intercalibration of low-light standards (annual workshops) as well as for ALIS absolute calibration and data validation.