Coronal holes and the prediction of recurrent high-velocity streams

Details Coronal holes and the prediction of recurrent high-velocity streams Coronal holes and the prediction of recurrent high-velocity streams

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988kfnt....4...29s&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 4, July-Aug. 1988, p. 29-32. In Russian.

Computer Science

2

Coronal Holes, Magnetohydrodynamic Flow, Solar Magnetic Field, Cross Correlation, High Speed, Interplanetary Magnetic Fields, Prediction Analysis Techniques

Scientific paper

Data from 1973-1979 were used to study the relationships between the large-scale solar magnetic field, coronal holes, the IMF sector structure, and high-velocity streams via cross-correlation analysis and direct comparison. Significant time and space correlations are found between the large-scale magnetic field and coronal holes (88 percent), the coronal holes and the IMF sector structure (87 percent for a transport time of 4.5 days), coronal holes and high-velocity streams (63 percent for recurrent coronal holes), and the IMF sector structure and high-velocity streams (75 percent within + or - 2 days). The width of the boundary region between coronal holes and the large-scale solar magnetic field, and between the coronal holes and the IMF sector structure amounts to 1.5-3 days (or 20-40 heliographic deg).

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