Project on Solar Effects on Chemistry and Climate Including Ocean Interactions (ProSECCO)

The objective of ProSECCO III is to study the impact of variations in solar activity on Earth in simulations with state-of-the-art climate model systems and observations. The project will address aspects of coupling processes from the upper atmosphere to the oceans. Like in the two preceeding phases (ProSECCO I and ll) the project is split into two parts investigating the impact of solar variability on the decadal time-scale (Part A) and on the centennial to millennial time-scale (Part B). In Part A, we will study three current research topics: a) the impact of decadal solar variability on the stratosphere, specifically the solar signal in stratospheric ozone and temperature, and the role of the Quasi-Biennal Oscillation (GBO), b) the tropospheric and climate response to the decadal solar forcing, and c) the role of atmosphere-ocean interactions for decadal solar and climate variability. We will perform and analyze simulations with the state-of-the-art chemistry-climate-model (CCM) MA-ECHAM5/MESSy. The new aspect of ProSECCO III will be the focus on atmosphere-ocean coupling processes and the implementation of a newly developed ocean-atmosphere CCM. In Part B, effects of solar variability on climate of different pre-industrial periods will be studied with the atmosphere-ocean model EGMAM, focussing on the period from the Maunder Minimum until today and the Holocene.

DFG-Verfahren Schwerpunktprogramme

Teilprojekt zu SPP 1176:  Klima und Wetter des Systems Sonne/Erde

Beteiligte Personen Professor Dr. Ulrich Cubasch; Privatdozent Dr. Peter Névir