P2C2: Climate and Environmental Variability over the Last Glacial Cycle from Ice Cores in the Western Kunlun Mountains (Tibetan Plateau)

P2C2:西昆仑山(青藏高原)冰芯末次冰期气候与环境变率

基本信息

  • 批准号:
    1502919
  • 负责人:
  • 金额:
    $ 137.42万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2015
  • 资助国家:
    美国
  • 起止时间:
    2015-07-01 至 2021-06-30
  • 项目状态:
    已结题

项目摘要

This award uses funds to conduct a collaborative expedition between The Ohio State University's Byrd Polar and Climate Research Center (BPCRC) and the Institute of Tibetan Plateau Research (ITP) of the Chinese National Academy of Sciences to recover and analyze four ice cores from the Guliya ice cap (6,700 meters) in the western Kunlun Mountains on the Tibetan Plateau (TP).This project involves a strong and equal research partnership between scientists from the U.S. and China and the opportunity to obtain one of the oldest ice records in the Northern Hemisphere that could help understand natural climate variability. As such, the project will help foster regional international scientific collaborations and support two graduate students and a postdoctoral scholar. Although the Guliya ice cap (GIC) was surveyed and successfully drilled to bedrock at an off-summit site in 1992, logistical and time limitations prevented summit drilling, and few dating techniques were available at that time to help establish a robust timescale beyond 100,000 years Before Present (BP). Recently enhanced logistics and technologies will help the international research team significantly address these former impediments. The short (decadal) to long (millennial) term time series produced over the last 100,000 years could provide a long-term context for climatic, atmospheric and environmental variability in one of the least studied places on Earth. Climate signals over the anticipated Last Glacial Cycle (LGC) time record in these ice cores will be assessed using continuous high-resolution stable isotopic, glaciochemical, dust, trace element, and black carbon measurements. Specifically, the research team will focus on the following objectives: (1) document abrupt climate variations, both past and present, recorded in the GIC and assess how climate has changed over the last quarter century; (2) establish tightly constrained timescales for the Guliya ice cores from both the lower elevation site and the summit; (3) determine the atmospheric and climatological dynamics that allowed the GIC to survive since the Eemian Period (~130,000 ago) while other TP glaciers to the east and south date back only to the Early or Middle Holocene Period, and; (4) assess the regional characteristics of climatic and environmental variability during the Holocene, Last Glacial Stage, Eemian and beyond and how they compare to conditions elsewhere, including the Polar Regions.
该奖项使用资金进行俄亥俄州州立大学伯德极地与气候研究中心(BPCRC)和中国国家科学院青藏高原研究所(ITP)之间的合作考察,以恢复和分析来自古里亚冰盖的四个冰芯(六、700米)在西藏高原(TP)的西昆仑山该项目涉及美国和中国科学家之间强大而平等的研究伙伴关系,并有机会获得北方最古老的冰川记录之一。可以帮助理解自然气候的变化。 因此,该项目将有助于促进区域国际科学合作,并支持两名研究生和一名博士后学者。 尽管1992年对古里亚冰帽(GIC)进行了调查,并成功地在山顶外的一个地点钻到了基岩,但后勤和时间限制阻止了山顶钻探,当时几乎没有测年技术可以帮助建立一个超过10万年的可靠时间尺度。 最近增强的物流和技术将有助于国际研究团队显著解决这些以前的障碍。 在过去10万年中产生的短期(十年)到长期(千年)时间序列可以为地球上研究最少的地方之一的气候、大气和环境变化提供长期背景。气候信号在预期的末次冰期循环(LGC)的时间记录在这些冰芯将使用连续的高分辨率稳定同位素,冰川化学,灰尘,微量元素和黑碳测量进行评估。具体而言,研究小组将侧重于以下目标:(1)记录GIC中记录的过去和现在的气候突变,并评估过去25年世纪的气候变化情况;(2)为低海拔地点和山顶的古里亚冰芯建立严格限制的时间尺度;(3)确定自Eemian时期以来使GIC得以生存的大气和气候动力学(~ 130,000年前),而东部和南部的其他TP冰川仅可追溯到全新世早期或中期;(4)评估全新世、末次冰期、Eemian及以后气候和环境变化的区域特征,以及它们与其他地方(包括极地地区)的条件相比如何。

项目成果

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Lonnie Thompson其他文献

The imbalance of the Asian water tower
亚洲水塔失衡
  • DOI:
    10.1038/s43017-022-00299-4
  • 发表时间:
    2022-06-07
  • 期刊:
  • 影响因子:
    71.500
  • 作者:
    Tandong Yao;Tobias Bolch;Deliang Chen;Jing Gao;Walter Immerzeel;Shilong Piao;Fengge Su;Lonnie Thompson;Yoshihide Wada;Lei Wang;Tao Wang;Guangjian Wu;Baiqing Xu;Wei Yang;Guoqing Zhang;Ping Zhao
  • 通讯作者:
    Ping Zhao

Lonnie Thompson的其他文献

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{{ truncateString('Lonnie Thompson', 18)}}的其他基金

P2C2: A 20,000 Year Ice Core-Derived Record of Paleoclimate and Environmental Variability in the Tropical Andes: Nevado Huascaran, Cordillera Blanca, Peru
P2C2:热带安第斯山脉古气候和环境变化的 20,000 年冰芯记录:秘鲁布兰卡山脉 Nevado Huascaran
  • 批准号:
    1805819
  • 财政年份:
    2018
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Continuing Grant
RAPID: Characterizing the Chemical and Physical Signature of the 2015-16 El Nino in the Quelccaya Ice Cap Snow and Ice to Calibrate Past ENSO Reconstructions
RAPID:描述 2015-16 厄尔尼诺现象在奎尔卡亚冰盖冰雪中的化学和物理特征,以校准过去的 ENSO 重建
  • 批准号:
    1603377
  • 财政年份:
    2015
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Standard Grant
Collaborative Research: Indian Summer Monsoon Variability Reconstructed from Tibetan Lake Sediments
合作研究:从西藏湖泊沉积物重建印度夏季季风变化
  • 批准号:
    1404819
  • 财政年份:
    2014
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Standard Grant
EAGER: 1500 Years of Indian Summer Monsoon Variabilty Reconstructed from High-Resolution Tibetan Lake Sediments
EAGER:利用高分辨率西藏湖泊沉积物重建 1500 年印度夏季季风变化
  • 批准号:
    1023547
  • 财政年份:
    2010
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Standard Grant
Chapman Conference on Abrupt Climate Change; June 15-19, 2009; Columbus, Ohio
查普曼气候突变会议;
  • 批准号:
    0928601
  • 财政年份:
    2009
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Standard Grant
Collaborative Research: Development of High-Resolution Biomass Burning Records for Tropical South America from Andean Ice Cores
合作研究:从安第斯冰芯开发南美洲热带地区高分辨率生物质燃烧记录
  • 批准号:
    0921509
  • 财政年份:
    2009
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Continuing Grant
Collaborative Research: P2C2--Reconstructing Tropical Pacific Climate Variability and Monsoon Systems, and Abrupt Changes from Ice Cores on Irian Jaya, Indonesia and Hualcan, Peru
合作研究:P2C2——重建热带太平洋气候变率和季风系统,以及印度尼西亚伊里安查亚和秘鲁胡阿尔坎冰芯的突变
  • 批准号:
    0823586
  • 财政年份:
    2008
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Standard Grant
Reconstructing Monsoon and Climate Variability from Naimona'nyi Ice Cores, Southwest Himalayas
从喜马拉雅山西南部奈莫纳尼冰芯重建季风和气候变化
  • 批准号:
    0502476
  • 财政年份:
    2005
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Continuing Grant
A Tropical Perspective on 20th Century Climate Change from Ice Core Histories and Glacier Area and Volume Measurement from the Quelccaya and Coropuna Ice Caps in the Southern Andes
从冰芯历史和安第斯山脉南部奎尔卡亚冰盖和科罗普纳冰盖的冰川面积和体积测量看 20 世纪气候变化的热带视角
  • 批准号:
    0318430
  • 财政年份:
    2003
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Continuing Grant
Ice Core Reconstruction of North Pacific Climate Variability and Environmental History from the Bona-Churchill Ice Field, Alaska
阿拉斯加博纳-丘吉尔冰原的北太平洋气候变化和环境历史的冰芯重建
  • 批准号:
    0099311
  • 财政年份:
    2001
  • 资助金额:
    $ 137.42万
  • 项目类别:
    Continuing Grant

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