Collaborative Research: Asian Ice Core Array (AICA)--Reconstruction of Past Physical and Chemical Climate over Asia

合作研究：亚洲冰芯阵列（AICA）--重建亚洲过去的物理和化学气候

• 批准号: 0754479
• 负责人: Vladimir Aizen
• 金额: $ 53.14万
• 依托单位: Regents of the University of Idaho
• 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: 2008-08-15 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0754479&HistoricalAwards=false
• 关键词: Collaborative; Research; Asian; Ice; Core

Funding is provided to help the researchers build on success using ice cores for understanding past physical and chemical climate change from Antarctica, Arctic, North Pacific and Asia by analyzing and interpreting a new array of Asian ice cores. The researchers plan to use five existing ice cores and collect one new ice core to enhance the reconstruction of environmental conditions over Asia. The primary research questions for the Asian Ice Core Array (AICA) research include: (1) Asian climate variability - How do major Asian circulation features (i.e., Asian monsoon, Westerlies, polar air masses, Siberian and Tibetan Highs) vary on annual to longer scales? What factors (i.e., solar variability, volcanic activity, greenhouse gases) control changes in the major circulation features impacting Asia? What is the association between Asian climate and global circulation features? Can Asian climate be simulated and predicted from the state of past atmospheric circulation patterns (analog modeling)? How does the interaction between tropical and extra-tropical circulation impact climate over Asia? What are the regional climatic changes to be expected in near future based on trends? Are Asian climate change events related to climate change in other regions?(2) Environmental change over Asia - How have natural versus anthropogenic sources for chemical species notably sulfate, nitrate, and select heavy metals and trace and major elements varied in the atmosphere over central Asia? Are spatial and temporal variations in contaminants related to changes in contaminant source areas or production? Have changes in atmospheric circulation impacted distribution of chemical species in the atmosphere over central Asia?Scientifically, ice cores from Asian glaciers could provide a source of high-resolution records of seasonal to millennial climate dynamics and atmospheric chemistry. This is important because the Eurasian continent is the largest landmass in the World and exerts substantial influence on atmospheric and terrestrial systems and the 2.5 billion people living in the region. Changes in environment over this region could have dramatic impacts on humans and ecosystems. Unpredictable changes in water resources and desertification over this heavily populated region may have significant global consequences. The results from AICA could be of interest to climatologists, paleoclimatologists, atmospheric chemists, geochemists, climate modelers, solar-terrestrial physicists, and environmental statisticians. Educationally, the research project will support two PhD students as well as several undergraduate students for three years. This will help provide a rich research experience for the graduate and undergraduate students. Also, this project has strong ties to colleagues in China and Europe and offers intellectual and financial leveraging to aid in the success of the project.

提供了资金，以帮助研究人员通过冰核通过分析和解释新的亚洲冰芯来帮助研究冰核心使用冰核来理解从南极，北极，北太平洋和亚洲的过去和化学气候变化。研究人员计划使用五个现有的冰芯，并收集一个新的冰芯来增强亚洲环境条件的重建。亚洲冰核阵列（AICA）研究的主要研究问题包括：（1）亚洲气候变异性 - 亚洲循环特征（即亚洲季风，西风，极地空气群，西伯利亚和西伯利亚和藏族高）如何在每年每年之间变化至更长的尺度？哪些因素（即太阳可变性，火山活动，温室气体）控制着影响亚洲的主要循环特征的变化？亚洲气候和全球循环特征之间的关联是什么？可以通过过去大气环流模式的状态（模拟建模）模拟和预测亚洲气候？热带和热带流通之间的相互作用如何影响亚洲的气候？根据趋势，在不久的将来预期的区域气候变化是什么？亚洲气候变化事件是否与其他地区的气候变化有关？（2）亚洲的环境变化 - 化学物种的自然与人为来源如何，硫酸盐，硝酸盐，硝酸盐以及选择重金属，痕量以及痕量以及中亚大气中的重大元素有所不同？污染物的空间和时间变化是否与污染物来源区域或生产变化有关？大气循环的变化影响了中亚大气中化学物种的分布吗？从科学上讲，亚洲冰川的冰芯可以提供季节性高分辨率记录到千禧年气候动力学和大气化学的来源。这很重要，因为欧亚大陆是世界上最大的陆地，对大气和地面系统以及居住在该地区的25亿人民产生了重大影响。该地区环境的变化可能会对人类和生态系统产生巨大影响。人口稠密地区的水资源和荒漠化的不可预测的变化可能会带来重大的全球后果。 AICA的结果可能是气候学家，古气候学家，大气化学家，地球化学家，气候建模者，太阳能物理学家和环境统计学家的关注。在教育上，研究项目将为两名博士学位学生以及三年的本科生提供支持。这将有助于为研究生和本科生提供丰富的研究经验。此外，该项目与中国和欧洲的同事有着密切的联系，并提供了智力和财务利用，以帮助该项目的成功。