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Titel Segmentation of SOHO/MDI continuum and magnetogram images with the ASAP tool for SSI reconstruction
VerfasserIn Rami Qahwaji, Margit Haberreiter, Stan Ipson, Omar Ahmed, Omar Nibouche
Konferenz EGU General Assembly 2014
Medientyp Artikel
Sprache Englisch
Digitales Dokument PDF
Erschienen In: GRA - Volume 16 (2014)
Datensatznummer 250097959
Publikation (Nr.) Volltext-Dokument vorhandenEGU/EGU2014-13589.pdf
 
Zusammenfassung
The variation of the solar spectral irradiance is an important driver for the energy balance in the Earth’s atmosphere. There is real need for new imaging technologies that would enable us to detect different solar features and calculate their filling factors that are important for SSI reconstruction. Using the ASAP tool, developed at Bradford University, we identify the regions of the solar disk that are believed to be responsible for the SSI variations, these are sunspots umbra and penumbra, active regions, active and quiet network, and the quiet sun. The tools developed in this research were applied to the entire SOHO/MDI continuum and magnetogram images from mid 1996 till the end of 2010. Here, we present first results of the decomposed MDI images along with their segmentaion maps and the reconstructed spectra. Acknowledgements SOHO is a project of international cooperation between ESA and NASA. The authors acknowledge that the research leading to these results has received funding from the European Community’s Seventh Framework Programme (FP7 2012) under grant agreement no 313188 (SOLID: First European SOLar Irradiance Data Exploitation)).