Mackenzie Delta river-ice breakup

麦肯齐三角洲河冰破裂

• 批准号: 305365-2007
• 负责人: Prowse, Terry
• 金额: $ 1.46万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Northern Research Supplement
• 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=396320
• 关键词: Mackenzie; Delta; river; ice; breakup

Freshwater ice is an integral component of northern rivers and an important modifier of related biological, chemical and physical processes. Although many concerns have been expressed about the potential impacts of climate change on ice-covered systems, our knowledge base remains relatively weak thereby making it difficult to predict the nature and magnitude of the effects of a changing climate on ice-covered systems. Moreover, even basic information on river-ice systems in northern Canada has been a problem for proper assessment of the potential environmental impact of development, including oil and gas development along the Mackenzie River and most recently directly within the Mackenzie River Delta. Although river-ice breakup is known to create the dominant hydrologic event of the year in the Delta and is essential to its ecological health, there is a lack of information about how variations in climate have controlled the timing, severity and intra-delta spatial dimensions of such events. Moreover, little is know what effects future climate will produce.

淡水冰是北方河流的一个组成部分，也是相关生物、化学和物理过程的重要调节剂。 虽然人们对气候变化对冰盖系统的潜在影响表示了许多关切，但我们的知识基础仍然相对薄弱，因此难以预测气候变化对冰盖系统影响的性质和程度。 此外，即使是关于加拿大北方河冰系统的基本资料也是一个问题，难以适当评估开发活动的潜在环境影响，包括沿着麦肯齐河和最近直接在麦肯齐河三角洲内的石油和天然气开发活动。 虽然河冰破裂是众所周知的，创造了主导的水文事件，在三角洲的一年，是必不可少的生态健康，有一个缺乏信息的气候变化如何控制的时间，严重程度和三角洲内的空间尺寸等事件。 此外，人们对未来气候会产生什么影响知之甚少。