Collaborative Research: P2C2--Synthesizing Asian Monsoon Hydroclimate & Indo-Pacific Variability on Seasonal to Multi-Decadal Timescales Using Tree-Rings & Coupled Climate

合作研究：P2C2——亚洲季风水文气候综合

• 批准号: 2002083
• 负责人: Sujata Murty
• 金额: $ 37.92万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-05-01 至 2024-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2002083&HistoricalAwards=false
• 关键词: Collaborative; Research; P2C2; Synthesizing; Asian

This project broadly seeks to use multi-parameter tree ring records from Laos and Vietnam in central Mainland Southeast Asia (MSEA) to reconstruct discrete spring, summer, autumn and winter climate variability for comparison to observations and model simulations and to understand the dynamics and drivers of climate and surface ocean variability in the region. The long-term perspective of central MSEA variability from the proxy records will be synthesized with the simulations for a more dynamically-based understanding of past and future changes in atmospheric and upper-ocean properties throughout Southeast Asia and the Maritime Continent.Specifically, the research team aims to use measurements of early and late wood width and density from blue light intensity in tree ring samples to reconstruct seasonal to multi-decadal records of the Palmer Drought Severity Index (PDSI), Standardized Precipitation Evapotranspiration Index (SPEI), rainfall, and boreal winter maximum temperature over the past five to ten centuries. Links between central MSEA and Indo-Pacific atmospheric and surface ocean properties over the past centuries will be evaluated using observational/reanalysis products and coupled climate model simulations because model resolution may not fully capture climate and ocean variability within individual monsoon seasons.The Asian Monsoon impacts roughly two-thirds of the global population. Multi-model assessments of regional climate under anthropogenic warming predict changes to the Asian Monsoon that are expected to impact regional climate and ocean variability. These multi-model assessments also predict a transition to a more El Nino-like state, which is expected to variably alter precipitation, temperature and ocean circulation patterns globally. The present understanding of past changes in monsoon strength and precipitation and the resulting consequences for Indian Ocean surface variability limits climatologist’s ability to accurately forecast regional climate impacts at various timescales.The potential Broader Impacts (B.I.) include better understanding of variability and long-term trends in rainfall and drought from Southeast Asia and the Indo-Pacific region. Such information has important implications for surrounding countries whose largely agrarian societies depend on reliable monsoon rainfall. The project also supports a new investigator and student participation in Woods Hole and UCAR SOARS summer programs.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该项目广泛寻求利用东南亚大陆中部（MSEA）老挝和越南的多参数树木年轮记录来重建离散的春季、夏季、秋季和冬季气候变化，以便与观测和模型模拟进行比较，并了解动态和驱动因素代理记录中的中央 MSEA 变化的长期视角将与模拟相结合，以便更动态地了解整个东南部大气和上层海洋特性的过去和未来变化。亚洲与海事具体来说，研究小组的目标是利用年轮样本中蓝光强度测量早、晚木材宽度和密度来重建帕尔默干旱严重度指数（PDSI）、标准化降水蒸散指数（ SPEI）、过去五到十个世纪的降雨量和北方冬季最高温度 将使用观测/再分析来评估过去几个世纪中 MSEA 与印度-太平洋大气和表面海洋特性之间的联系。产品和耦合气候模型模拟，因为模型分辨率可能无法完全捕捉单个季风季节内的气候和海洋变化。亚洲季风影响了全球约三分之二的人口。对人为变暖下的区域气候的多模型评估预测了亚洲的变化。预计季风将影响区域气候和海洋变化。这些多模型评估还预测，季风将向类似厄尔尼诺的状态转变，这预计将不同程度地改变全球目前对过去的降水、温度和海洋环流模式。的变化季风强度和降水以及由此产生的印度洋表面变化的后果限制了气候学家在不同时间尺度准确预测区域气候影响的能力。潜在的更广泛影响（B.I.）包括更好地了解东南亚降雨和干旱的变化和长期趋势这些信息对周边国家具有重要意义，这些国家的农业社会主要依赖于可靠的季风降雨。该项目还支持伍兹霍尔和 UCAR 的新调查员和学生参与。 SOARS 夏季项目。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Progress in understanding of Indian Ocean circulation, variability, air–sea exchange, and impacts on biogeochemistry

对印度洋环流、变化、海气交换以及对生物地球化学影响的了解取得进展

• DOI: 10.5194/os-17-1677-2021
• 发表时间: 2021-11-26
• 期刊: Ocean Science
• 影响因子: 3.2
• 作者: H. Phillips;A. T;on;on;R. Furue;R. Hood;C. Ummenhofer;J. Benthuysen;V. Menezes;Shijian Hu;B. Webber;A. Sanchez‐Franks;Deepak Cherian;E. Shroyer;Ming Feng;H. Wijesekera;A. Chatterjee;Lisan Yu;J. Hermes;R. Murtugudde;T. Tozuka;D. Su;Ashutosh Kumar Singh;L. Centurioni;Satya Prakash;J. Wiggert
• 通讯作者: J. Wiggert

Freshwater Contributions to Decadal Variability of the Indonesian Throughflow

淡水对印度尼西亚径流年代际变化的贡献

• DOI: 10.1029/2023gl103906
• 发表时间: 2023-07-26
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Shouyi Wang;C. Ummenhofer;D. Oppo;S. Murty;P. Wagner;C. Böning;A. Biastoch
• 通讯作者: A. Biastoch

Tropical Volcanic Eruptions and Low Frequency Indo‐Pacific Variability Drive Extreme Indian Ocean Dipole Events

热带火山喷发和低频印度太平洋变率驱动印度洋极端偶极子事件

• DOI: 10.1029/2023gl103991
• 发表时间: 2023-10-05
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Benjamin H. Tiger;C. Ummenhofer
• 通讯作者: C. Ummenhofer

Drivers of Coral Reconstructed Salinity in the South China Sea and Maritime Continent: The Influence of the 1976 Indo‐Pacific Climate Shift

南海和海洋大陆珊瑚重建盐度的驱动因素：1976 年印度太平洋气候变化的影响

• DOI: 10.1029/2021jc017787
• 发表时间: 2022-06
• 期刊: Journal of Geophysical Research: Oceans
• 作者: Kannad, Ankitha;Goodkin, Nathalie F.;Samanta, Dhrubajyoti;Murty, Sujata A.;Ramos, Riovie D.;Smerdon, Jason E.;Gordon, Arnold L.
• 通讯作者: Gordon, Arnold L.

Heat and freshwater changes in the Indian Ocean region

印度洋地区的热量和淡水变化

• DOI: 10.1038/s43017-021-00192-6
• 发表时间: 2021-07
• 期刊: Nature Reviews Earth & Environment
• 影响因子: 42.1
• 作者: Ummenhofer, Caroline C.;Murty, Sujata A.;Sprintall, Janet;Lee, Tong;Abram, Nerilie J.
• 通讯作者: Abram, Nerilie J.