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
• 负责人: Lonnie Thompson
• 金额: $ 109.44万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2014-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0823586&HistoricalAwards=false
• 关键词: Collaborative; Research; P2C2; Reconstructing; Tropical

Funding is provided to recover and analyze ice cores from glaciers in the tropical Pacific to examine tropical climate variability especially El Nino-Southern Oscillation (ENSO) linked climate phenomena such as the Austral-Asian monsoon system, the abrupt 4,000 year drought, and the modulation of Atlantic and Pacific tropical storm intensities. Specifically, the researchers will recover four cores to bedrock from the two of the three remaining ice fields on Puncak Jaya (PJ) in Irian Jaya, Indonesia on the Island of New Guinea and two cores from Nevado Hualcán in the Cordillera Blanca, Peru. Climatologically, tropical ice masses are particularly sensitive to small changes in ambient temperatures since they exist very close to the melting point of water. Scientific evidence exists for recent and strong warming in the tropics that is signaled by the disappearance and rapid retreat of ice caps and glaciers at high elevations. General circulation models of possible future climate change indicate that warming will increase most rapidly at higher altitudes and especially in the tropical latitudes where these glaciers are located. Scientific interest in the study of the Puncak Jaya and Hualcán ice fields, both in the analysis of the cores and in the measurements of area and volume changes of the glaciers themselves, arises in part from the need to place the recent and accelerating ice retreat into a longer temporal perspective.Furthermore, the analyses of the Hualcán ice cores and accompanying mass balance studies will help provide critical information about water resources in Peru. Runoff from glaciers feed Peru's streams and rivers and is essential for irrigation, hydroelectric production (80% of Peru?s electricity), and municipal water supplies. The planned project supports students in an effort to expand our fundamental knowledge of climate across time and space. The research also provides for true intellectual and financial collaborations between academia, non-governmental organizations, and governments in several nations.

提供资金来恢复和分析热带太平洋冰川中的冰芯，以研究热带气候变化，特别是与厄尔尼诺-南方涛动（ENSO）相关的气候现象，例如澳大利亚-亚洲季风系统、突然的4000年干旱和调制具体来说，研究人员将从伊里安本哲再也 (PJ) 剩余三个冰原中的两个冰原中回收四个岩心。印度尼西亚新几内亚岛的贾亚和秘鲁布兰卡山脉内瓦多瓦尔坎的两个冰芯从气候学角度来看，热带冰块对环境温度的微小变化特别敏感，因为它们非常接近水的熔点。热带地区近期出现强烈变暖现象，其标志是高海拔地区冰盖和冰川的消失和迅速消退。未来可能发生的气候变化的总体环流模型表明，变暖速度将加快。在较高海拔地区，特别是在这些冰川所在的热带纬度地区，对 Puncak Jaya 和 Hualcán 冰原的研究产生了科学兴趣，包括对冰芯的分析以及对冰川本身面积和体积变化的测量。部分原因是需要将最近加速的冰退缩置于更长的时间视角。此外，对华尔坎冰芯的分析和伴随的质量平衡研究将有助于提供有关水资源的关键信息秘鲁的冰川径流为秘鲁的溪流和河流提供水源，对于灌溉、水力发电（占秘鲁电力的 80%）和市政供水至关重要。该计划项目支持学生努力扩展我们对气候的基础知识。该研究还为多个国家的学术界、非政府组织和政府之间提供了真正的智力和财务合作。