The team around the former GFZ PhD student of the GFZ section Climate Dynamics and Landscape Evolution, Gordon Schlolaut (now Japan Agency for Marine-Earth Science and Technology), investigated sediments from Lake Suigetsu in Japan, to reconstruct East Asian climate change during the Younger Dryas. Achim Brauer, Head of the GFZ section Climate Dynamics and Landscape Evolution and Director of the Department Geoarchives says: "Little by little we come to understand the interplay between regional climate changes at the end of the last glacial phase. The scientists assume that this warming was related to changes in atmospheric pressure that pushed cold polar air masses and with them the westerlies that are determinant for the European climate further north, which before, during the glacial phase, reached down to Southern Europe. The algae of the investigated lake, and the spores and pollen from plants that were surrounding the lake, that were deposited throughout the centuries of the cold period, as well as changes in the chemical composition of the sediments, provide the scientists with important information on regional changes in temperature and rainfall. Like parts of a puzzle, these different regional archives provide an overall picture of the climatic changes during that time and show how regional climate changes were influencing each other.
The climate of the Earth follows a complex interplay of cause-and-effect chains. A change in precipitation at one location may be caused by changes on the other side of the planet. A better understanding of these "teleconnections" -- the linkages between remote places -- may help to better understand local impacts of future climate change. A look into the climate of the past helps to investigate the teleconnections. https://www.sciencedaily.com/releases/2017/03/170331120340.htm
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