The formulation of realistic scenarios on the future development of the earth climatic system requires detailed knowledge about the band width of natural climate variations on variable time scales. To minimize uncertainties about past climatic conditions and its pace makers an improved time resolution and spatial coverage of archives, especially with respect to the role of the continents is needed.

PROSIMUL II has its focus on stable isotope proxies from crater lakes sediments which enable a varve based calendar year chronology and, due to high sedimentation rates a high time resolution. This provides a means to establish continuous time series of proxy parameters with a time resolution per sample from 5 to 50years. Thus, even short termed fluctuations or threshold reactions of the climatic system can be resolved on decadal to centennial time scales.

The aim of the project is to further develop the climatic evidence of stable isotope proxies derived from sedimentary organic matter and biominerals. Since isotopic proxies compared to sedimentological parameters or terrestrial vegetation react on different time scales and with different amplitudes an improved and detailed knowledge about climate, environment and lacustrine systems will be achieved.

PROSIMUL II staff:

Dr. Andreas Lücke (PI)		a.luecke@fz-juelich.de
Holger Wissel (Technican)		h.wissel@fz-juelich.de