Session: Benchmarking & cross-cutting Group 1 (Isotope modelling, COMPARE)
Author: Gijs De Cort / email@example.com / Royal Museum for Central Africa
Co-author: Christine Y. Chen, Massachusetts Institute of Technology;
David McGee, Massachusetts Institute of Technology;
Yu Ge, Nanjing Institute of Geography and Limnology;
Fengju Zhang, Nanjing Institute of Geography and Limnology;
Sandy P. Harrison, University of Reading;
Lakes are an important source of information about changes in the hydrological budget, providing records of variability on annual to multi-millennial timescales depending on sedimentation dynamics. The Global Lake Status Data Base (GLSDB) was created in the 1990’s to provide assessments of lake status changes over the past 30,000 years. This resource is now considerably out-of-date, because new approaches to reconstructing hydroclimate, improved techniques for constructing age models, and many new individual lake records have been developed since. A new consortium has been formed to update the GLSDB through creating an integrative framework to deal with the unique assets and challenges of lake-status data, which will allow ongoing regional synthesis efforts to be treated in a standardised way. We will present preliminary results addressing age modelling (specifically conversion of the GLSDB records to calendar age models), regional syntheses of new data from Africa, South America and China, and novel sources of hydroclimatic information. We will also show new ways of using the lake data for model evaluation to demonstrate possible applications of the GLSDB2 as part of the PMIP4 benchmarking and diagnosis approach.