The 2ka Palaeoclimate Research Group became the Eastern European regional coordinator of the SISAL initiative. SISAL (Speleothem Isotopes Synthesis & Analysis) is a PAGES working group aims to bring together speleothem scientists, speleothem-process modelers, statisticians and climate modelers to develop a global synthesis of speleothem isotopes that can be used both to explore past climate changes and in model evaluation.
The map illustrates a state of the art overview of locations of investigated speleothems, that were used for palaeoclimate studies (red closed circles); the white closed circles indicate the speleothems, whose datasets are available on the NOAA palaeoclimatology database – these are only 19% of the speleothems pictures here (Feb. 2014). The two pie charts illustrate the spatial and temporal distribution of the speleothems. (Bottom pie chart) 55 % of the speleothems grew within the Holocene and 45% are Pleistocene, distributed over two million years; however, most of them grew between MIS 7 and MIS 2. (Top pie chart) 39% of the speleothems grew in Europe; 17% in Asia; 13% in North America; 12% in Oceania; 6% in the Middle East; 5% in South America and 3% Middle America and Africa, respectively (figure adopted and modified from Deininger, 2013).
The map was taken from http://www.pastglobalchanges.org/ini/wg/sisal/intro.