In northern Italy a new all-sky imaging system, described by Baumgardner et al., uses highly sensitive sensors and a fish-eye lens to simultaneously observe SAR arc and faint auroral activity over the majority of Europe. The authors report on the all-sky SAR arc observations made during a geomagnetic storm that took place from 26 to 27 September 2011. Comparing their observations with coincident satellite- and ground-based observations, the authors find that their all- sky imager was able to identify the lowest latitudes where magnetospheric sources can create a SAR arc. They suggest that the detection of a SAR arc, separated from the diffuse ionospheric aurorae, can indicate the region of maximum electron heating from the inner magnetosphere to the ionosphere. They also suggest that the new all-sky imager could be used to help interpret in real time the effect of space weather on radio communications or to help validate space weather modeling efforts.
Space Weather, doi:10.1002/swe.20027, 2013
Imaging space weather over Europe
Jeffrey Baumgardner, Joei Wroten, Michael Mendillo and Carlos Martinis: Center for Space Physics, Boston University, Boston, Massachusetts, USA; Cesare Barbieri and Gabriele Umbriaco: Department of Physics and Astronomy, University of Padova, Padova, Italy; Cathryn Mitchell and Joe Kinrade: Department of Electronic and Electrical Engineering, University of Bath, United Kingdom; Massimo Materassi and Luigi Ciraolo: Institute for Complex Systems, ISC-CNR, 50019 Sesto Fiorentino-Firenze, Italy; Marc Hairston: William B. Hanson Center for Space Science, University of Texas, Dallas, Texas, USA.
|Contact: Kate Ramsayer|
American Geophysical Union