Variability of climate in Central Europe during the late Holocene from dendrochronological and documentary data (HOLOFLOOD)

根据树木年代学和文献数据得出的全新世晚期中欧气候变化 (HOLOFLOOD)

• 批准号: 151758415
• 负责人: Professor Dr. Rüdiger Glaser
• 金额: --
• 依托单位: Lehrstuhl für Physische Geographie
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/151758415?language=en
• 关键词: Variability; climate; Central; Europe; during

The research proposal will determine climate dynamics due to analysis of precipitation, temperature, circulation modes and anomalies during the Holocene. This will be done by combining two unique climate archives (documentary data back to 1.000 AD, dendrochronological data back 10.000 BP) both on true annual time scales. During the first stage of HOLOFLOOD data analysis, especially the parallelisation of tree-ring width and wood anatomical variables with documentary data succeeded encouragingly. Improvements had been achieved with the development and refinement of the transfer functions resulting in the reconstruction of flood, temperature and precipitation variability during historical time in Central Europe as well as for the 4,7k BP event. In the second stage of INTERDYNAMIK, HOLOFLOOD will intensively focus on the last 1200 years including the full Medieval Warm Period and the Little Ice Age. During this period a large amount of dendrochronological data from different regions as well as a broad variety of documentary data is available. Furthermore the two prominent climate fluctuations in the Holocene (8,2 k BP resp. 4,7 k BP) are investigated in a greater detail, laying the focus on human and natural driving forces of sudden climate changes. In the second stage of HOLOFLOOD further and more detailed transfer functions will be worked out involving non-linear and spectral analyses techniques as well as enhancing the existing approach by adding a wider variety of other climate proxies (e.g. warves and speleothems). On a more large scale approach the reconstruction of the leading modes of the European atmospheric circulation will be tested against the results of climatic reconstructions. In close collaboration with modellers the results derived from the research of the tree response to the influence of “Grosswetterlagen” will be improved by using data which provide daily information describing circulation modes on spatial and temporal scale, e.g. NCEP/NCAR Reanalysis data, GCMs etc. This will help to generate a better understanding of - and improved insight into future climate variability.

该研究建议将由于分析全新世的降水，温度，循环模式和异常情况而确定气候动态。这将通过将两个独特的攀登档案（记录数据回到1.000 AD，DENDROCONOLOGY DATAY 10.000 bp）结合在真实的年度尺度上来完成。在Holoflood数据分析的第一阶段，尤其是树环宽度和木材解剖变量的平行化，带有纪录片数据成功地成功了。随着转移功能的发展和完善，在中欧以及4,7K BP事件的历史时期内的洪水，温度和降水量变异性重建，从而取得了改善。在Interdynamik的第二阶段，Holoflood将重点关注过去1200年，包括整个中世纪温暖时期和小冰河时代。在此期间，可以提供来自不同地区以及各种各样的文献数据的大量DendroConological数据。此外，更详细地研究了全新世的两个突出的气候波动（8,2 k bp 4,7 k bp），将重点放在了突然气候变化的人类和自然驱动力上。在第二阶段，将进一步发展，更详细的转移功能将涉及非线性和光谱分析技术，并通过添加各种其他气候代理（例如Warves and Speleothems）来增强现有方法。在更大规模的方法上，将根据气候重建的结果进行测试，重建欧洲大气循环的主要模式。通过与模块的密切合作，通过使用数据提供每日描述空间和临时量表的循环模式的数据，将改善树木响应对“ Grosswetterlagen”影响的研究结果得出的结果，例如NCEP/NCAR重新分析数据，GCMS等。这将有助于更好地理解对未来气候变化的了解并提高洞察力。