Holocene Environment of far-east Siberia

堪察加半岛和千岛群岛地理位置优越，气候非常敏感。气候波动是由复杂的因素驱动的，如全球大气环流、洋流和构造活动。拟议项目的重点将是在对湖泊沉积物记录进行多代理研究之后，对西伯利亚远东地区全新世期间的气候和环境变化进行定量重建。重点是通过合并第一申请人早期开发的现代东北西伯利亚和西西伯利亚训练数据集，应用新开发的基于区域摇蚊的T July和大陆性推断模型（传递函数）。为了进行重建，我们建议调查沉积物芯从中部和南部堪察加半岛的三个湖泊和四个沉积物芯从中部和南部千岛群岛。所有遗址都位于沿着千岛-堪察加弧的南北向断面上。摇蚊分析的结果将与来自生物标志物，硅藻，花粉和火山灰分析，由合作者进行比较。部分出版的记录可供查阅。该项目的成果提供了一个详细的概述全新世环境变化和不同的生态因素在该地区复杂的气候历史的重要性。此外，该项目还将带来独特的分类学和地理学信息。它继续我们以前在该地区的工作，将提供对全球气候驱动因素和北大西洋和北太平洋地区之间遥相关的见解，并导致更好地了解在欧亚大陆研究最少的地区之一的全球自然过程背景下区域因素（主要包括冷暖洋流和灾难性事件的迁移）相互作用的环境意义。

The Kamchatka Peninsula and Kurile Islands are ideally situated in a very climate-sensitive setting. Climate fluctuations are driven by complex factors, such as global atmospheric circulation, ocean currents, and tectonic activities. The focus of the proposed project will be put forward on the quantitative reconstruction of climate and environmental changes in far-East Siberia during the Holocene, following a multi-proxy study of lacustrine sediment records. The focus is the application of newly developed regional chironomid-based T July and Continentality inference models (transfer functions), by merging modern North-East Siberian and West-Siberian trainings data sets, earlier developed by the first applicant. To perform the reconstructions, we propose to investigate sediment cores from three lakes in central and southern Kamchatka and four sediment cores from the central and southern Kuriles. All sites are situated along a north-south transect that follows the Kuril-Kamchatka Arc. Results of chironomid analysis will be compared with those derived from biomarkers, diatoms, pollen, and tephra analysis, performed by collaborators. Partly published records are available. The outcome of the project provides a detailed overview of Holocene environmental changes and the importance of the different ecological factors in the complex climate history of the region. In addition, the project will bring unique taxonomical and biogeographical information. It continues our previous work in the region, will provide insights into global climate drivers and teleconnections between the North Atlantic and North Pacific regions and leads to better understanding of the environmental significance of interactions of regional factors (including primarily migration of warm and cold ocean currents and catastrophic events) against the background of global natural processes in this one of the least studied region of Eurasia.