Modelling the reponse of the St. Lawrence tributaries to environmental changes: integrated study and development tools

圣劳伦斯支流对环境变化的响应建模：综合研究和开发工具

• 批准号: 360657-2007
• 负责人: Roy, André
• 金额: $ 5.9万
• 依托单位: Université de Montréal
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=403825
• 关键词: Modelling; reponse; St.; Lawrence; tributaries

It has been shown in an initial study that hydrological changes and base level drop anticipated for St-Lawrence tributaries in the climate change context will have important impact on their longitudinal profile and on sediment supply to the St-Lawrence. The specific goal of the present study is to extend the 1D modelling approach used in the initial study to include a wider view of the potential effects of environmental changes on the tributaries dynamics. The project will focus on 1) the simulations of the spatial and temporal patterns of river adjustment and the forecasting of sediment transport volume that will be supplied to the St-Lawrence, 2) a better understanding of the winter/spring period, which is most likely be affected by the global climate changes, in particular of the ice cover formation and breakup processes and of their effects on sediment transport and

初步研究表明，在气候变化背景下，圣劳伦斯河支流的水文变化和基准面下降将对其纵向剖面和圣劳伦斯河的沉积物供应产生重要影响。本研究的具体目标是扩展最初研究中使用的一维建模方法，以更广泛地了解环境变化对支流动态的潜在影响。该项目的重点是：1）模拟河流调整的时空模式，预测将向圣劳伦斯河输送的泥沙量; 2）更好地了解最有可能受到全球气候变化影响的冬/春时期，特别是冰盖形成和破裂过程及其对泥沙输送的影响;