NSFGEO-NERC Solving the enigma of the Miocene South Asian monsoon conundrum. An analog to our future

NSFGEO-NERC 解决中新世南亚季风难题。

基本信息

  • 批准号:
    NE/X015505/1
  • 负责人:
  • 金额:
    $ 27.57万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2023
  • 资助国家:
    英国
  • 起止时间:
    2023 至 无数据
  • 项目状态:
    未结题

项目摘要

The evolution of the South Asian Monsoon represents the multi-sphere interactions that involve lithosphere (the uplift of Tibetan Plateau), atmosphere (monsoonal circulations), hydrosphere (hydrological cycle), and biosphere (e.g., terrestrial ecology evolution - C4-grassland expansion and ocean productivity). Therefore, the South Asian Monsoon research is directly related to the compelling, high-priority science questions, as identified in [A Vision for NSF Earth Sciences 2020-2030: Earth in Time (2020)], including Question 6 (What are the causes and consequences of topographic change?) Question 8 (What does Earth's past reveal about the dynamics of the climate system?) Question 9 (How is Earth's water cycle changing?) and Question 10 (How do biogeochemical cycles evolve?) (National Academies of Sciences and Medicine, 2020). Hence the study of the South Asian monsoon is exemplary in Earth System Science research.Because of the nature of multi-sphere interactions, the South Asian Monsoon is manifest with multiple facets. It is characterized by the marked seasonal precipitation, high relevance to chemical weathering of silicate rocks and the efficiency of carbon burial, interannual reversal wind fields, ocean cooling, biogenic bloom, and expansion of oxygen minimum zone (e.g., Betzler et al., 2017; France-Lanord et al., 2016; Pandey et al., 2016). Decades of efforts have focused on characterizing those features of South Asian Monsoon; the accumulation of results has revolutionized our knowledge of South Asian Monsoon by offering long-term time series of evolutionary history from different perspectives to link the above phenomenon. However, due to the nature of multiple facets of the South Asian Monsoon, a vital issue arose, which reflects on the divergent observations and contradictory interpretations of the monsoon strength. Proxy studies from the ocean and terrestrial records give very opposite views on the South Asian monsoon: records of physical, chemical, and biological features of the North Indian Ocean reveal that the monsoon-induced upwelling has been strengthened between ca. 13 Ma and 8 Ma. The strengthening of upwelling is characterized by the rapid cooling of sea surface temperatures, the spike increases of cold water-dwelling foraminifera - the global bulloides, and the expansion of oxygen minimum zone; while terrestrial records reveal that the monsoonal precipitation became weaker, the climate became drier that drove the C4-grassland expansion, and chemical weathering lost its efficiency during the similar time interval.We organized a US-UK team (with six PIs from four institutes). We proposed to use an integrated approach that combines the strength of organic geochemistry proxy and numerical modeling studies. We aim to reconstruct a long-term history of the South Asian monsoon since the mid-Miocene to characterize the regional precipitation pattern, the ocean production, and ocean circulation patterns reflecting changes in chemical and physical conditions. We will then establish and delineate the linkages between the uplift of the Tibetan Plateau, the evolution of monsoonal circulation, and ocean production in the context of numerical modeling simulations.
南亚季风的演变代表了包括岩石圈(青藏高原的隆升)、大气圈(季风环流)、水圈(水文循环)和生物圈(例如,陆地生态演变- C4-草原扩张和海洋生产力)。因此,南亚季风的研究直接关系到令人信服的,高优先级的科学问题,如[NSF地球科学的愿景2020-2030:地球的时间(2020)],包括问题6(地形变化的原因和后果是什么?)问题8(地球的过去揭示了气候系统的什么动力学?)问题9:地球的水循环是如何变化的?问题10(地球化学循环如何演变?)(美国国家科学院和医学院,2020年)。因此,南亚季风的研究在地球系统科学研究中具有示范意义。由于多球相互作用的性质,南亚季风表现出多方面的特征。它的特征是明显的季节性降水,与硅酸盐岩石的化学风化和碳埋藏的效率高度相关,年际反转风场,海洋冷却,生物水华和氧最小区的扩张(例如,Betzler等人,2017; France-Lanord等人,2016; Pandey等人,2016年)。几十年来的努力集中在表征南亚季风的这些特征;通过从不同角度提供长期的演变历史时间序列来联系上述现象,成果的积累彻底改变了我们对南亚季风的认识。然而,由于南亚季风的多方面的性质,一个重要的问题出现了,这反映了对季风强度的不同观测和相互矛盾的解释。从海洋和陆地记录的代用研究给出了南亚季风的相反观点:北印度洋的物理,化学和生物特征的记录显示,季风引起的上升流已加强之间的ca。13、八马。上升流的加强主要表现为海表温度的迅速冷却、冷水栖有孔虫--球状泡状体的急剧增加和氧最小区的扩大;而陆地记录显示,季风降水减弱,气候变干,促使C4草地扩张,我们组织了一个美英联合研究小组(由来自四个研究所的六名研究员组成)。我们建议使用一种综合的方法,结合有机地球化学代理和数值模拟研究的力量。我们的目标是重建自中新世中期以来南亚季风的长期历史,以表征区域降水模式,海洋生产和海洋环流模式,反映化学和物理条件的变化。然后,我们将建立和描绘青藏高原的隆升,季风环流的演变,和海洋生产的数值模拟的背景下,之间的联系。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Limits of oxygen isotope palaeoaltimetry in Tibet
  • DOI:
    10.1016/j.epsl.2023.118040
  • 发表时间:
    2023-03
  • 期刊:
  • 影响因子:
    5.3
  • 作者:
    A. Farnsworth;P. Valdes;L. Ding;R. Spicer;Shi-Hu Li;Tao Su;Shufeng Li;C. Witkowski;Zhongyu Xio
  • 通讯作者:
    A. Farnsworth;P. Valdes;L. Ding;R. Spicer;Shi-Hu Li;Tao Su;Shufeng Li;C. Witkowski;Zhongyu Xio
Phylogenomic Analyses Reveal Widespread Gene Flow During the Early Radiation of Oaks and Relatives (Fagaceae: Quercoideae)
  • DOI:
    10.1101/2023.04.25.538215
  • 发表时间:
    2023-04
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Shuiyin Liu;Yingying Yang;Qin Tian;Zhiyun Yang;Shufeng Li;P. Valdes;A. Farnsworth;H. Kates;C. Siniscalchi;R. Guralnick;D. Soltis;P. Soltis;Gregory W. Stull;R. Folk;T. Yi
  • 通讯作者:
    Shuiyin Liu;Yingying Yang;Qin Tian;Zhiyun Yang;Shufeng Li;P. Valdes;A. Farnsworth;H. Kates;C. Siniscalchi;R. Guralnick;D. Soltis;P. Soltis;Gregory W. Stull;R. Folk;T. Yi
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Paul Valdes其他文献

Damping seasonal variations
抑制季节性变化
  • DOI:
    10.1038/372221a0
  • 发表时间:
    1994-11-17
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    Paul Valdes
  • 通讯作者:
    Paul Valdes
Improving Limb Salvage and Amputation-Free Survival in Acute Limb Ischemia via a Novel System-wide Alert Protocol
  • DOI:
    10.1016/j.jvs.2024.03.197
  • 发表时间:
    2024-06-01
  • 期刊:
  • 影响因子:
  • 作者:
    Charles J. Bailey;Akeem Bartley;Michelle Buckley;Carlos Mayleen lopez;Paul Valdes;Christopher Tenewitz; Latz
  • 通讯作者:
    Latz
Southern Hemisphere subtropical front impacts on Southern African hydroclimate across the Mid-Pleistocene Transition
南半球亚热带锋面在中更新世过渡期间对南非水文气候的影响
  • DOI:
    10.1038/s41467-025-58792-5
  • 发表时间:
    2025-04-12
  • 期刊:
  • 影响因子:
    15.700
  • 作者:
    Claire B. Rubbelke;Tripti Bhattacharya;Alexander Farnsworth;Paul Valdes;Erin L. McClymont;Heather Ford
  • 通讯作者:
    Heather Ford

Paul Valdes的其他文献

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{{ truncateString('Paul Valdes', 18)}}的其他基金

The evolution of vegetation and biodiversity change during the Paleogene and early Neogene
古近纪和新近纪早期植被演化和生物多样性变化
  • 批准号:
    NE/P013805/1
  • 财政年份:
    2017
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant
Pliocene Gateways ('PlioGate')
上新世网关(“PlioGate”)
  • 批准号:
    NE/J012726/1
  • 财政年份:
    2012
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant
JASMIN West
茉莉西
  • 批准号:
    ST/K000764/1
  • 财政年份:
    2012
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant
Earth System Modelling of Abrupt Climate Change
气候突变的地球系统建模
  • 批准号:
    NE/I010912/1
  • 财政年份:
    2011
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant
Modelling North Atlantic's Heinrich events and associated impacts on the Earth System
模拟北大西洋海因里希事件及其对地球系统的相关影响
  • 批准号:
    NE/G006989/1
  • 财政年份:
    2009
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant
QUEST Deglaciation: Climate and Biogeochemical Cycles during the last deglaciation.
QUEST 冰消期:末次冰消期期间的气候和生物地球化学循环。
  • 批准号:
    NE/D001730/1
  • 财政年份:
    2006
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant
QUEST Deglaciation: Climate and Biogeochemical Cycles during the last deglaciation.
QUEST 冰消期:末次冰消期期间的气候和生物地球化学循环。
  • 批准号:
    NE/D001773/1
  • 财政年份:
    2006
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant
QUEST Deglaciation: Climate and
QUEST 冰川消融:气候与
  • 批准号:
    NE/D001846/1
  • 财政年份:
    2006
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant
QUEST Deglaciation: Climate and Biogeochemical Cycles during the last deglaciation.
QUEST 冰消期:末次冰消期期间的气候和生物地球化学循环。
  • 批准号:
    NE/D001684/1
  • 财政年份:
    2006
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant
QUEST Deglaciation: Climate and Biogeochemical Cycles during the last deglaciation.
QUEST 冰消期:末次冰消期期间的气候和生物地球化学循环。
  • 批准号:
    NE/D001781/1
  • 财政年份:
    2006
  • 资助金额:
    $ 27.57万
  • 项目类别:
    Research Grant

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