Tag Archives: synoptic maps

111. Synoptic Q-Maps — Insight into the Topology of the Coronal Magnetic Field

Contributed by Todd Hoeksema. Posted on September 26, 2018

Synoptic Q-maps, which display a geometric parameter describing the squashing factor of elemental flux tubes, are computed using both HMI and MDI magnetic field observations. These maps are useful for understanding coronal configurations relevant to space weather.

16. Spatial-Variance Magnetic Synoptic Maps

Contributed by Luca Bertello. Posted on May 26, 2014

Bertello and collaborators at NSO have made a first attempt to estimate some of the uncertainties in magnetic synoptic maps and evaluated their impact on coronal and heliospheric models. They found that accounting for the statistical uncertainties arising from the distribution of image pixels contributing to each bin in the synoptic map may produce a noticeable change in the results obtained from these models.