Collaborative Research: P2C2--Ultra-High-Resolution Investigation of High Andean Snow and Ice Chemistry to Improve Paleoclimatic Reconstruction and Enhance Climate Prediction

合作研究：P2C2——对安第斯高山冰雪化学进行超高分辨率研究，以改善古气候重建并增强气候预测

• 批准号: 1600018
• 负责人: Paul Mayewski
• 金额: $ 72.51万
• 依托单位: University of Maine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-15 至 2023-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1600018&HistoricalAwards=false
• 关键词: Collaborative; Research; P2C2; Ultra; Resolution

This collaborative proposal aims to combine advances in ice core sampling technology, knowledge of Andean storm event meteorology, cyberinfrastructure, and climate modeling and analysis to fresh snow, snowpits and ice core data to be recovered from ice caps in Peru and Bolivia.The specific goals of the project are to investigate South American atmospheric circulation features (e.g. El Niño/La Niña (ENSO), South American Low-level Jet, Southern Hemisphere trades and westerlies), tropical-mid-latitude-polar teleconnections, and the significance of key global-scale forcing functions that control atmospheric circulation (e.g. solar variability, volcanic activity, dusts, and greenhouse gases) and have significant relevance to moisture and heat transport over South America.The regional retreat of alpine glaciers coupled with increased population, industry, and agriculture activities are generating future demands on water resources. Declines in water resources may magnify the regional impacts of ENSO. Instrumental records of climate and environmental variability over the region are sparse yet ice cores from Central Andean glaciers provide a source of high resolution records of past climate dynamics and chemistry of the atmosphere extending back centuries to millennia. Climate reconstructions from ice cores could provide added temporal and spatial context to existing multi-proxy reconstructions in order to assess the impact of natural and human-induced physical and chemical climate change at the storm-scales that impact day to day and season to season events, and in the process, develop analogs for predicting future change.This project builds on the researchers' recent W.M. Keck Foundation and NSF-supported transformative laser sampling of ice cores and the newly released, NSF-supported cyberinfrastructure and climate analysis tools. It also involves supporting an early career post-doctoral scholar, development and testing of new analytical tools, and strong collaboration with South American scientists.

该合作提案旨在将冰芯采样技术的进步、安第斯风暴事件气象学知识、网络基础设施以及气候建模和分析结合起来，以从秘鲁和玻利维亚的冰盖中恢复新雪、雪坑和冰芯数据。 具体目标该项目的主要目的是调查南美大气环流特征（例如厄尔尼诺/拉尼娜现象（ENSO）、南美低空急流、南半球贸易和西风带），热带-中纬度-极地遥相关，以及控制大气环流（例如太阳变率、火山活动、灰尘和温室气体）的关键全球尺度强迫函数的重要性，并且与南美洲的水分和热量传输具有显着相关性。高山冰川的区域退缩加上人口、工业和农业活动的增加正在产生未来对水资源的需求，水资源的减少可能会放大ENSO对该地区气候和环境变化的影响。中部安第斯冰川的冰芯虽然稀疏，但提供了过去几个世纪到几千年的气候动态和大气化学的高分辨率记录来源，冰芯的气候重建可以为现有的多代理重建提供更多的时间和空间背景。为了评估自然和人为引起的物理和化学气候变化对风暴规模的影响，这些变化会影响日常和季节之间的事件，并在此过程中开发用于预测未来变化的类似物。该项目以研究人员为基础'最近，W.M. Keck 基金会和 NSF 支持的冰芯变革激光采样以及 NSF 支持的新发布的网络基础设施和气候分析工具还包括支持早期职业博士后学者、新分析工具的开发和测试以及强大的支持。与南美科学家的合作。