Improving the Prediction Capability of Seismic Far-Side Maps

Details Improving the Prediction Capability of Seismic Far-Side Maps Improving the Prediction Capability of Seismic Far-Side Maps

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..416...87g&link_type=abstract

Solar-Stellar Dynamos as Revealed by Helio- and Asteroseismology: GONG 2008/SOHO 21 ASP Conference Series, Vol. 416, proceedings

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Both the Michelson Doppler Imager (MDI) and the Global Oscillation Network Group (GONG) projects produce daily seismic maps of surface magnetic activity on the non-visible hemisphere of the Sun. The technique has proven useful to detect and follow large active regions before they appear to face the Earth. This work demonstrates an improvement in the detection capability of the technique by applying the results of new research. We calibrate the daily far-side maps in terms of characteristics of the active region, such as total area and magnetic flux strength, apply a relationship between the strength of the persistent signal and the success rate to automatically highlight possible candidates, and remove solar-cycle variations to stabilize the signal.

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