"Collaborative Research"ITR-(ASE+EVS)-dmv+sim):Data Driven Simulation of the Subsurface: Optimization and Uncertainty Estimation

知识价值。在科学和工程问题中，当材料的性质不能直接采样时，利用遥感来推断材料的性质。为了更好地了解和管理我们的环境，出于安全和经济原因，在基于遥感数据的地下成像和估计物理性质方面取得了很大进展。对环境修复和油藏生产目标的反复观察已成为协助管理决策的公认诊断工具。此外，改进的优化技术能够以容错和自适应的方式响应大型、多分辨率、不同的动态数据集，这是有效估计和最小化任何数据驱动应用程序中的不确定性的基本要求。综合有效地处理这些问题是本项目的动力。组建的研究团队建议推进必要的数学，工程和计算基础，以增强我们的理解和扩展在多个时空尺度上控制地下现象的物理过程的预测能力。目标应用包括水资源含水层管理，优化石油和天然气生产，以及监测环境风险，例如，在废物围堵场或由自然灾害引起的环境风险。该项目的智力优势包括：(1)开发下一代精确、多尺度、耦合的化学、流体、地质力学和地球物理模拟器，用于模拟仪器化的地下环境；(2)大规模优化技术（基于全局和局部方法的混合），以驱动可靠的决策和计算与数据之间的动态共生反馈；(3)部署自主网格中间件，为(1)和(2)提供足够的处理基础和数据管理服务。上述贡献的实现将导致数据驱动的地下模拟框架（DDSSF）。

Intellectual Merit. Remote sensing is employed in science and engineering problems to infer material properties when these properties can not be directly sampled. To better understand and manage our environment for safety and economic reasons, much progress has been made in imaging the subsurface and estimating physical properties based on remote sensing data. Repeated observations over targets for environmental remediation and reservoir production has become a recognized diagnostic tool for assisting management decisions. In addition, improved optimization techniques capable of responding to large, multi-resolution, disparate, dynamic datasets in a fault tolerant and adaptive fashion are a fundamental requirement for effectively estimating and minimizing the uncertainty in any data driven application. The integrated and e_ective treatment of these issues motivates the present project. The assembled research team proposes to advance the mathematical, engineering and computational foundations necessary to enhance our understanding and extend the predictive capabilities of the physical processes that govern the subsurface phenomena at multiple temporal and spatial scales. Target applications include management of aquifers for water resources, optimizing oil and gas production, and monitoring environmental risks e.g., at waste containment sites or arising from natural hazards.The intellectual merits of the project include: (1) development of the next generation of accurate, multi-scale, coupled chemical, uid, geomechanical, and geophysical simulators for modeling instrumented subsurface environments; (2) large scale optimization techniques (based on a hybridization of global and local approaches) to drive reliable decision-making and a dynamic symbiotic feedback between computation and data; (3) deployment of an autonomic Grid middleware for providing the adequate processing substrate and data management services for (1) and (2). The realization of the above contributions will result in the Data Driven Subsurface Simulation Framework (DDSSF).