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

0128689斯特恩这项为期三年的美法合作研究北极海冰覆盖的奖项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。 主要研究人员哈里·L.美国的斯特恩和法国的杰罗姆韦斯领导着一个研究小组，他们在地球物理材料的断裂和北极海冰的运动和变形方面具有专业知识。 这项合作的目标是描述海冰变形的变化，了解其与应力和海岸条件的联系，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，将模拟与变形过程有关的非均匀性和标度律。研究的一个主要数据来源是雷达卫星地球物理处理系统。美国团队为这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及其多重分形和小波分析发展方面的专门知识对此起到了补充作用。这项合作促进了对北极海冰覆盖动态的理解，并将改进现有的模型。北极海冰的动态监测很重要，因为它可能对全球气候、海洋生物和商业产生影响。 这种合作也有助于研究和教育基础设施。 学生将受益于先进的培训和参与国际团队的努力。该奖项代表了美国方面向NSF和CNRS提出的平行建议。 NSF将为美国调查员及其学生支付旅费和生活费。CNRS将支持法国研究人员和学生访问美国。

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.