𝔖 Bobbio Scriptorium
✦   LIBER   ✦

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

✍ Scribed by J. Todd Hoeksema; Philip H. Scherrer

Publisher
Springer
Year
1986
Tongue
English
Weight
546 KB
Volume
105
Category
Article
ISSN
0038-0938

No coin nor oath required. For personal study only.

✦ Synopsis

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.

In this note we announce 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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