Information - CL033 Oxygen-18 in climate models, observations and palaeo-data
The ratio of oxygen-18/oxygen-16 in water is a fundamental tracer of the hydrologic cycle. It is preserved in many paleo-archives spanning all the components of the earth system from coral and foraminiferal carbonate, polar and tropical ice cores, speleothems, tree-ring cellulose, lake carbonates, mollusks and pore waters. It remains a challenge to integrate the disparate proxy records and reconciling the multiple effects (temperature, source region variability, seasonality, etc.) recorded therein. Models that include water isotope tracers and allow to directly model the signals in the paleo-proxy records are a useful tool to further our understanding of these archives. In this session we welcome contributions from (paleo-) climate reconstructions as well as modelling initiatives. We particularly encourage our colleagues to report on studies that combine data and models.
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