COO will coordinate ClimXtreme II in close collaboration with the coordination of Modules A, B, and D. The coordination will take care that the overall research questions of ClimXtreme II will be investigated and that each sub-project contributes to the overall aims. Furthermore, COO is responsible to fulfill the general aims of Module C (impacts).

There are two overarching activity groups in ClimXtreme II which will be coordinated by COO: the post event assessment group (PostAG) and the hazard specific stakeholder interaction groups (HaSSI group). The PostAG will act using a certain protocol and assess extreme events occurring during ClimXtreme II. The HaSSI groups ensure the interaction between stakeholders and ClimXtrme research projects.

Scientifically, COO will further extend and analyze the integrated database of indices of ClimXtreme. The database includes indices from all hazards of Module C which are wind, precipitation and temperature and drought related. Indices link meteorological parameters to impacts as storm loss, flooding from spatially small scales to large river floods, crop failure and agricultural droughts.

Analysis of the database will focus on sequences of hazards which lead to a potential increase of impacts. This will be done for different combinations of hazard types, e.g. succeeding periods with high rainfall amounts, and subsequent flooding. Those sequences can be classified as multivariate and preconditioned compound events. The integrated database enables the possibility to interrelate sector specific impacts and sequences and to analyze compound events which are explicitly defined by the combination of impact-related hazards and thresholds. The database is then used to investigate the climate change of these sequences.

Website: COO
Institution: Institute of Meteorology, Freie Universität Berlin
Contact: Prof. Dr. Uwe Ulbrich, Dr. Jens Grieger