Contents I. Introduction
In this work, we use chord diagrams with hierarchical edge bundling [2] for correlation visualization in 3D ensemble fields. We consider the correlations between the values of physical variables in the ensemble members at selected locations in 3D space. This will eventually enable us to analyze the used ensemble prediction system, which generates the ensemble members using variations of the initial simulation conditions and model formulations, by conveying regions where these variations result in similar or dissimilar relative behavior of the member values. Notably, by interpreting a single ensemble member at T distinct time steps as an ensemble comprising T members, our approach can be immediately applied to convey temporal correlations in a single field.
