Searchable Solar Feature Catalogues in EGSO

This paper describes a searchable Solar Feature Catalogue (SFC) created using automated pattern recognition techniques from digitized solar images. The techniques were developed for detection of sunspots, active regions, filaments and line-of-sight magnetic neutral lines using Ca II K1, Ca II K3 and Ha solar images from the Meudon Observatory and white light images and magnetograms from SOHO/MDI. A comp arison of the results of automatic detection with manually generated synoptic maps shows good detection accuracy. Using the characteristics extracted from the recognized features a structured database of the Solar Feature Catalogues has been built on a mysql server and published with various pre-designed search pages on the Bradford University web site http://www.cyber.brad.ac.uk/egso/. The future SFC with 11 year coverage (1995-2005) is to be used for feature classification and short-term and long-term solar activity forecast. This research is a part of the European Grid of Solar Observations (EGSO) project.