Solar Feature Catalogues In Egso |
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| Authors: | V V Zharkova J Aboudarham S Zharkov S S Ipson A K Benkhalil N Fuller |
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| Institution: | (1) Department of Cybernetics, Bradford University, Bradford, BD7 1DP, U.K.;(2) LESIA, The Paris-Meudon Observatory, F92195 Meudon Principal Cedex, France;(3) Department of Cybernetics, Bradford University, Bradford, BD7 1DP, U.K.;(4) LESIA, The Paris-Meudon Observatory, F92195 Meudon Principal Cedex, France |
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| Abstract: | The Solar Feature Catalogues (SFCs) are created from digitized solar images using automated pattern recognition techniques
developed in the European Grid of Solar Observation (EGSO) project. The techniques were applied for detection of sunspots,
active regions and filaments in the automatically standardized full-disk solar images in Caii K1, Caii K3 and Hα taken at the Meudon Observatory and white-light images and magnetograms from SOHO/MDI. The results of automated
recognition are verified with the manual synoptic maps and available statistical data from other observatories that revealed
high detection accuracy. A structured database of the Solar Feature Catalogues is built on the MySQL server for every feature
from their recognized parameters and cross-referenced to the original observations. The SFCs are published on the Bradford
University web site http://www.cyber.brad.ac.uk/egso/SFC/ with the pre-designed web pages for a search by time, size and location. The SFCs with 9 year coverage (1996–2004) provide
any possible information that can be extracted from full disk digital solar images. Thus information can be used for deeper
investigation of the feature origin and association with other features for their automated classification and solar activity
forecast. |
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