6–10 Sept 2021
Varenna, Villa Monastero
Europe/Rome timezone

Tutorial_9: Introduction to Integrated Data Analysis and Validation

10 Sept 2021, 09:00
45m
Villa Monastero (Varenna, Villa Monastero)

Villa Monastero

Varenna, Villa Monastero

Oral - Invited

Speaker

Rainer Fischer (Max-Planck-Institute for Plasma Physics, Garching, Germany)

Description

A major challenge in nuclear fusion research is the coherent combination of data from heterogeneous diagnostics and modelling codes. Measured data from different diagnostics often provide information about the same subset of physical parameters. Additionally, information provided by some diagnostics might be needed for the analysis of other diagnostics. A joint analysis of complementary and redundant data allows, e.g., to improve the reliability of parameter estimation, to increase the spatial and temporal resolution of profiles, to obtain synergistic effects, to consider diagnostics interdependencies and to find and resolve data inconsistencies. Modelling codes may provide additional physical information allowing for an improved treatment of ill-posed inversion problems. A coherent combination of all kind of available information within a probabilistic framework allows for improved data analysis results.

The concept of Integrated Data Analysis (IDA) in the framework of Bayesian probability theory will be introduced and contrasted with conventional data analysis. Applications from nuclear fusion research will highlight various aspects of IDA and the respective benefits.

Primary author

Rainer Fischer (Max-Planck-Institute for Plasma Physics, Garching, Germany)

Presentation materials