Late Holocene climate and environmental changes in the Eurasian Arctic - evidence from glacier and ground ice (Eurasian Arctic Ice 4k)

欧亚北极全新世晚期气候和环境变化 - 来自冰川和地冰的证据（欧亚北极冰 4k）

• 批准号: 214131914
• 负责人: Dr. Thomas Opel
• 金额: --
• 依托单位: Forschungsstelle Potsdam
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/214131914?language=en
• 关键词: Late; Holocene; climate; environmental; changes

The Arctic as key region for the global climate system is more affected by ongoing climate change than most other regions. As meteorological time series from the Eurasian Arctic are short, climate archives are of particular importance for the assessment of the natural climate variability and its causes in the preindustrial Late Holocene. The proposed project aims at reconstructing Late Holocene climate and environmental changes based on the study of the Akademii Nauk ice core (Severnaya Zemlya) and ice wedges from the non-glaciated Siberian Arctic, mainly by means of stable-water isotopes. Whereas ice cores are known as one of the best climate archives, the analysis of ice wedges as mid-resolution archives is innovative. A new dating approach (using the radionuclide 10Be) will extend the robust ice-core age model. Taking ice-cap growth into account, this allows tracking the climate and environmental dynamics of the Western Eurasian Arctic in high resolution. The analysis of ice wedges at different study sites along a west-east transect will result in new regional winter climate records. The unique combination of ice-core and ice-wedge records will provide new insights into the seasonal, temporal and spatial dynamics of the Eurasian Arctic climate in the Late Holocene, into their causes and into the moisture generation and transport patterns between the varying impacts of the Atlantic and Pacific Oceans.

北极作为全球气候系统的关键区域，比大多数其他区域更受持续气候变化的影响。由于欧亚北极地区的气象时间序列较短，气候档案对于评估晚全新世前工业化时期的自然气候变率及其原因具有特别重要的意义。拟议项目的目的是根据对Akademii Nauk冰芯（Severnaya Zemlya）和西伯利亚北极非冰川冰楔的研究，主要通过稳定水同位素，重建晚全新世气候和环境变化。虽然冰芯被认为是最好的气候档案之一，但对冰楔作为中等分辨率档案的分析是创新的。一种新的测年方法（使用放射性核素10Be）将扩展强大的冰芯年龄模型。考虑到冰帽的增长，这使得能够以高分辨率跟踪欧亚北极西部的气候和环境动态。对沿沿着东西向样带不同研究地点的冰楔的分析将导致新的区域冬季气候记录。冰芯和冰楔记录的独特组合将为全新世晚期欧亚北极气候的季节，时间和空间动态，其原因以及大西洋和太平洋不同影响之间的水分生成和运输模式提供新的见解。

项目成果

Observing Muostakh disappear: permafrost thaw subsidence and erosion of a ground-ice-rich island in response to arctic summer warming and sea ice reduction

• DOI: 10.5194/tc-9-151-2015
• 发表时间: 2015-01-01
• 期刊: CRYOSPHERE
• 影响因子: 5.2
• 作者: Guenther, F.;Overduin, P. P.;Grigoriev, M. N.
• 通讯作者: Grigoriev, M. N.

Long-term winter warming trend in the Siberian Arctic during the mid- to late Holocene

• DOI: 10.1038/ngeo2349
• 发表时间: 2015-02
• 期刊: Nature Geoscience
• 影响因子: 18.3
• 作者: H. Meyer;T. Opel;T. Laepple;A. Dereviagin;Kirstin Hoffmann;M. Werner

Halogen-based reconstruction of Russian Arctic sea ice area from the Akademii Nauk ice core (Severnaya Zemlya)

基于 Akademii Nauk 冰芯（北地岛）的俄罗斯北极海冰区的卤素重建

• DOI: 10.5194/tc-10-245-2016
• 发表时间: 2016
• 期刊: The Cryosphere
• 作者: Spolaor A;Opel T;McConnell JR;Maselli OJ;Spreen G;Varin C;Kirchgeorg T;Fritzsche D;Saiz- Lopez A;Vallelonga P
• 通讯作者: Vallelonga P

Spatial and temporal oxygen isotope variability in northern Greenland – implications for a new climate record over the past millennium

格陵兰岛北部的时空氧同位素变化——对过去千年新气候记录的影响

• DOI: 10.5194/cp-12-171-2016
• 发表时间: 2016
• 期刊: Climate of The Past Discussions
• 作者: Weißbach S;Wegner A;Opel T;Oerter H;Vinther BM;Kipfstuhl S
• 通讯作者: Kipfstuhl S

Is the 20th century warming unprecedented in the Siberian north

20世纪西伯利亚北部变暖是否史无前例

• DOI: 10.1016/j.quascirev.2013.05.015
• 发表时间: 2013
• 期刊: Quaternary Science Reviews
• 影响因子: 4
• 作者: Sidorova OV;Saurer M;Andreev A;Fritzsche D;Opel T;Naurzbaev MM;Siegwolf R
• 通讯作者: Siegwolf R