The group at the GFZ led by Dr. Monika Korte will lead the project. With its many years of expertise in the global reconstruction of past magnetic field development, they will be responsible for the most accurate possible characterisation of the magnetic field during the polarity events to be investigated. To this end, new palaeomagnetic data from sediment cores will be measured in the laboratory and used together with existing data to calculate global models. Investigations into data quality and possible environmental influences on the magnetic signal play an important role here. The findings will also be used to estimate the magnetic field configuration during a possible future polarity reversal.