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.

提供了资金来恢复和分析热带太平洋冰川的冰芯，以检查热带气候变异性，尤其是El Nino-Southern振荡（ENSO）连接的气候现象，例如澳大利亚 - 亚洲季风系统，突然的4,000年干旱以及大西洋和太平洋热带风暴的调节。具体而言，研究人员将从新几内亚岛的印度尼西亚伊里安·贾亚（Irian Jaya）的Punkak Jaya（PJ）上的剩下的三个冰场中，将四个核心恢复到基岩中，以及来自秘鲁Cordillera Blanca Cordillera Blanca的NevadoHualcán的两个核心。从气候学上讲，热带冰块对环境温度的微小变化特别敏感，因为它们的存在非常接近水的熔点。在高海拔高度的冰盖和冰川的消失和快速撤退的热带中，有科学证据表明热带地区的最新变暖和强烈的变暖。可能未来气候变化的一般循环模型表明，在较高的高度，尤其是在这些冰川所在的热带纬度地区，变暖会迅速增加。在对岩心的分析和冰川本身的面积和体积变化的测量中，对punkak jaya和hualcán冰场的研究进行了科学兴趣，部分原因是需要将较长的临时视角置于较长的临时角度。冰川的径流为秘鲁的溪流和河流提供，对于灌溉，水力发电生产（占秘鲁的80％）和文化供水至关重要。计划的项目支持学生，以扩大我们对跨时空气候的基本知识。该研究还提供了多个国家的学术界，非政府组织和政府之间的真正智力和财务合作。