| Extending and improving the Scandinavian and South American chronology networks: A study on reconstructions of atmospheric circulations during the Holocene based on Tree rings and glacier variability in Scandinavia and Patagonia (South America)”
In order to search for evidences of teleconnections between climate systems in the northern and southern hemispheres we chose to analyze multiproxy climatic reconstructions produced by means of dendroclimatology and glacier fluctuations from both Scandinavia and southern South America (Patagonia). We are going to enlarge existing tree-ring chronologies and develop new ones, in other words, we are creating a grid of dendroclimatological reconstructions that will extend over Sweden in this first stage, and later over Scandinavia as well as in Patagonia. These reconstructions will be coupled to dendrochronological reconstructions of glacier fluctuation and stream flow in this two areas. Data on glacier variability is partly available for glaciers at mount San Lorenzo (47° 30’S) and Santa Ines Island (53°45’S), although new data must be collected at this last mentioned location. In Sweden the dendroclimatological data is partly available; nevertheless, extensive sampling will be performed in the counties of Värmland, Dalarna, Gävleborgs län, Västernorrlands län, Jämtlands län, Västerbottens län and Norrbotens län. Data on glacier fluctuation (Storglaceären, Helags, and Björlings) is available at the Department of Earth Sciences at Gothenburg’s University. Generally, we aim to produce over 100 chronologies extending over 500 years back in time from which signal climate will be extracted and compared with instrumental data series. |