An atlas of photospheric magnetic field observations and computed coronal magnetic fields: 1976-1985

Details An atlas of photospheric magnetic field observations and computed coronal magnetic fields: 1976-1985 An atlas of photospheric magnetic field observations and computed coronal magnetic fields: 1976-1985

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986soph..105..205h&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 105, May 1986, p. 205-211. Research supported by the Max C. Fleischman Foundation.

Physics

17

Coronagraphs, Photosphere, Solar Corona, Solar Magnetic Field, Heliosphere, Magnetic Field Configurations, Maps

Scientific paper

Daily magnetogram observations of the large-scale photospheric magnetic field have been made at the John M. Wilcox Solar Observatory at Stanford since May of 1976. These measurements provide a homogeneous record of the changing solar field through most of solar cycle 21. Using the photospheric data, the configuration of the coronal and heliospheric fields can be calculated using a Potential Field-Source Surface model. This provides a three-dimensional picture of the heliospheric field evolution during the solar cycle. This paper announces the publication of UAG Report No. 94, an Atlas containing the complete set of synoptic charts of the measured photospheric magnetic field, the computed field at the source surface, and the coefficients of the multipole expansion of the coronal field. The general underlying structures of the solar and heliospheric fields, which determine the environment for solar-terrestrial relations and provide the context within which solar activity related events occur, can be approximated from these data.

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