Hybrid modeling approach to assess the sustainability of hydrological systems

评估自然和人为水文和环境系统的可持续性（例如，恢复的流域、流域基础设施、城市排水系统）主要依靠数学建模，以便对有关系统的性能进行长期模拟和介绍。在这项研究中，水文系统的混合建模方法将被开发。混合方法被定义为包括或集成多个（至少两个）模型的建模系统。这些模型可以是基于物理的，其中物理过程的足够知识应该是可用的，或者是数据驱动的模型，当物理过程的知识不存在或不完整时可以采用。建议的混合建模方法和由此产生的混合模型将在其建模精度，适应各种来源的不确定性，计算效率，其中包括计算时间和易处理性，以及它们对最终系统管理决策的影响方面进行评估。所提出的研究将被验证并应用于多个案例研究，例如，模拟各种水文过程（例如，土壤水分含量，实际蒸散量，径流）在恢复流域北部阿尔伯塔和自然森林网站从BOREAS项目在萨斯喀彻温省。

The assessment of the sustainability of natural and human-made hydrological and environmental systems (e.g., restored watersheds, watershed infrastructure, urban drainage systems) relies mainly on mathematical modeling to allow for long-term simulation and presentation of the performance of the system in question. In this research, a hybrid modeling approach for hydrological systems will be developed. The hybrid approach is defined as a modeling system that includes or integrates multiple (at least two) models. These models can be physically based where sufficient knowledge of the physical processes should be available or data-driven models that can be employed when the knowledge of the physical processes is absent or incomplete. The proposed hybrid modeling approach and the resulting hybrid models will be evaluated in terms of their modeling accuracy, accommodation of various sources of uncertainty, and computational efficiency, which includes computational time and tractability as well as their impact on the final system management decisions. The proposed research will be validated and applied to a multiple case studies, such as, modeling the various hydrological process (eg., soil moisture content, actual evapotranspiration, runoff) in restored watersheds in northen Alberta and natural forested sites from the BOREAS project in Saskatchewan.