FP 29: Decadal Holocene and Late-glacial Variability of the Oxygen Isotopic Composition in Precipitation over Europe Reconstructed from deep-lake sediments

十大湖将提供六个日期准确的高分辨率记录，记录阿尔卑斯山北缘、西缘和南缘以及波兰东北部深海湖泊沉积物中介形类生物过去降水的氧同位素组成。广泛的空间分布将允许破译过去气候变异性的特别区域变化。由经验丰富的研究组组成的网络，每个研究组都将其在同位素分析、沉积学和古生态学方面的专门知识应用于所有沉积物岩芯，确保了各个数据集在年代、分析标准和数据质量方面具有高度的可比性。这些数据集将用于数据模型比较，采用配备水稳定同位素显式模型的模型层次结构。研究集中在三个时间窗口：(1)最近1.000年，(2)8.200溴突出冷相附近的时间段，(3)特别关注快速高振幅变化的类别。该项目的预期成果将是欧洲十年至百年气候变化的空间视图，将被用来更好地了解普遍存在的强迫机制。

DecLakes will provide six well-dated high-resolution records of the oxygen-isotope composition of past precipitation derived from ostracods in the profundal lake sediments from the Northern, Western and Southern margin of the Alps and from North-eastern Poland. The wide spatial distribution will allow to decipher in particular regional variations of past climate variability. A network of highly experienced research gropus of which each will apply their specific knowledge in isotope analyses, sedimentology and palaeoecology to all sediment cores guarantees a high degree of comparability of the individual data sets in terms of dating, analytical standards and data quality. These data sets will be used for data-model-comparision applying a hierarchy of models equipped with the explicit modelling of water stable isotopes. The study concentrates on three time windows: (1) The last 1.000 years, (2) the period around the prominent cold phase at 8.200 BR, and, (3) the Lateglacial with a special focus on the rapid high-amplitude changes. The expected outcome of the project will be a spatial view of decadal to centennial climate variability in Europe which will be used to better understand prevailing forcing mechanisms.