Physics
Scientific paper
Aug 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980soph...67...13w&link_type=abstract
Solar Physics, vol. 67, Aug. 1980, p. 13-21.
Physics
2
Astronomical Maps, Centimeter Waves, Coronal Holes, Solar Radio Emission, Synoptic Measurement, Graphs (Charts), Latitude, Longitude, Skylab Program, Time Response
Scientific paper
Synoptic charts for Carrington rotations 1601-1605 (May-August 1973) were prepared using the central meridian column of the daily 9.1-cm Stanford solar radio maps. These charts were especially contoured to emphasize temperatures near the quiet solar disk level. Synoptic charts of coronal holes from the ATM-Skylab were superimposed on the radio data to investigate the ability of the radio charts to show coronal holes. This brief period is unfortunately the only interval for which both sets of data are available. The conclusion reached is that in spite of certain problems due to active regions, sidelobe effects and a rather large beamwidth, the 9.1-cm synoptic charts can be of substantial value in identifying large coronal holes, especially during periods of low solar activity. Such synoptic charts, therefore, for the years 1962-1973 that Stanford data are available, could enhance significantly the meager data pool for coronal holes prior to the Skylab mission.
Papagiannis Michael D.
Wefer Fred L.
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