CAWSES (Climate and Weather of the Sun-Earth-System) has been a Schwerpunktprogramm sponsored by the Deutsche Forschungsgemeinschaft. The project duration is from 2005-2011. The contribution was about the impact of the solar variability on the upper stratosphere and mesosphere.
Different projects of the national priority programme on CAWSES (Climate and Weather of the Sun Earth System) within the SCOSTEP framework
Tracer Observations and Mean Age