A system for near real-time detection of filament eruptions at Kanzelhöhe Observatory. Issue Volume 8:Issue S300(2013) (6th January 2014)

• Record Type: Journal Article
• Authors: Pötzi, Werner; Riegler, Gernot; Veronig, Astrid; Pock, Thomas; Möstl, Ute
• Is Part Of: Proceedings of the International Astronomical Union. Volume 8:Issue S300(2013)
• Page Start: 519
• Page End: 520
• Publication Date: 2014-01-06
• Subjects: Hα, -- filaments, -- solar activity, -- image processing; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921313011800
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Kanzelhöhe Observatory (kso.ac.at) performs regular high-cadence full-disk observations of the solar chromosphere in the Hα and CaIIK spectral lines as well as the solar photosphere in white-light. In the frame of ESA's Space Situational Awareness (SSA) activities, a new system for near real-time Hα image provision through the SSA Space Weather (SWE) portal (swe.ssa.esa.int) and for automatic alerting of flares and erupting filaments is under development. Image segmentation algorithms, based on optical flow image registration, for the automatic detection of solar filaments in real time Hα images have been developed and implemented at the Kanzelhöhe observing system. We present first results of this system with respect to the automatic recognition and segmentation of filaments and filament eruptions on the Sun.