U.S.-France Cooperative Research: The Arctic Sea Cover: Scaling Properties Associated with Deformation of Geophysical Materials

美法合作研究：北极海域覆盖：与地球物理材料变形相关的缩放特性

• 批准号: 0128689
• 负责人: Harry Stern
• 金额: $ 2.18万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-05-01 至 2007-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0128689&HistoricalAwards=false
• 关键词: U.S.; France; Cooperative; Research; Arctic

0128689SternThis three-year award for US-France collaboration on studies of the Arctic Sea ice cover involves researchers and students at the University of Washington and at the Glaciology and Environmental Geophysics Laboratory in Grenoble, France. The principal investigators, Harry L. Stern in the US, and Jerome Weiss in France, lead a teamof researchers with expertise in the fracture of geophysical materials and motion and deformation of Arctic Sea ice. The objectives of this collaboration are to characterize the variability of sea ice deformation, understand its connection to stresses and coastal conditions, test the fracture mechanisms independent of spatial scale, and improve sea ice models. Heterogeneity and scaling laws associated with the process of deformation will be modeled in order to study the dynamics of the Earth's lithosphere. A major source of data for the studies is from the RADARSAT Geophysical Processor System. The US team brings to this collaboration expertise in remote sensing of deformation and dynamics of sea ice cover and applications to oceanography and climate. This is complemented by French expertise in fracture of geophysical material of the Earth's interior and their development of multifractal and wavelets analyses. The collaboration advances understanding of the dynamics of the Arctic Sea ice cover and will improve existing models. Arctic sea ice dynamics are important to monitor because of potential consequences for global climate, marine life and commerce. The collaboration contributes as well to research and education infrastructure. Students will benefit through advanced training and participation in an international team effort. This award represents the US side of parallel proposals to the NSF and the CNRS. NSF will cover travel funds and living expenses for the US investigator and his students. The CNRS will support visits by French researchers and students to the United States.

0128689Stern 这个为期三年的美法合作奖涉及北极海冰盖研究，涉及华盛顿大学和法国格勒诺布尔冰川学和环境地球物理实验室的研究人员和学生。 主要研究人员美国的哈里·L·斯特恩和法国的杰罗姆·韦斯领导了一个研究小组，他们在地球物理材料的断裂以及北冰洋海冰的运动和变形方面拥有专业知识。 此次合作的目标是表征海冰变形的变化性，了解其与应力和沿海条件的联系，测试独立于空间尺度的断裂机制，并改进海冰模型。 为了研究地球岩石圈的动力学，将对与变形过程相关的非均质性和尺度定律进行建模。研究的主要数据来源是雷达卫星地球物理处理器系统。美国团队为此次合作带来了海冰覆盖变形和动态遥感以及海洋学和气候应用方面的专业知识。 法国在地球内部地球物理材料断裂方面的专业知识以及多重分形和小波分析的发展对此进行了补充。此次合作增进了对北冰洋冰盖动态的了解，并将改进现有模型。由于对全球气候、海洋生物和商业的潜在影响，北极海冰动态的监测非常重要。 此次合作也为研究和教育基础设施做出了贡献。 学生将通过高级培训和参与国际团队的努力而受益。该奖项代表了美国方面向 NSF 和 CNRS 提出的并行提案。 NSF 将为美国调查员及其学生提供旅费和生活费。 CNRS 将支持法国研究人员和学生访问美国。