Paleoclimatic, paleoceanographic and paleoseismic history of the northern Pacific coast of British Columbia

不列颠哥伦比亚省北太平洋沿岸的古气候、古海洋和古地震历史

• 批准号: 355730-2008
• 负责人: Dallimore, Audrey
• 金额: $ 1.09万
• 依托单位: Royal Roads University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=459535
• 关键词: Paleoclimatic; paleoceanographic; paleoseismic; history; northern

Earth's climate is highly variable on both long- and short-term time-scales. The Pacific ocean-atmosphere processes which contribute to this variability can be interpreted from a combination of: a) surveys of the modern ocean conditions along coastal British Columbia, and b) "laminated" ocean sediment records. These "paleo" or "past" sediment records extend our knowledge of variations in the natural climate system well beyond the reach of the existing century-long instrument record and help us to understand climate changes which occurred thousands of years ago. In turn, this enhanced knowledge of our climate system increases our understanding of the rapid climate changes we are now experiencing. Similarly, the nature and frequency of past great earthquakes along the Pacific coast of Canada can be interpreted from these same laminated ocean sediment records.

地球的气候在长期和短期时间尺度上都是高度多变的。造成这种变化的太平洋海洋-大气过程可从以下两方面综合解释：a)对不列颠哥伦比亚省沿海现代海洋状况的调查，b)“叠层”海洋沉积物记录。这些“古”或“过去”的沉积物记录扩展了我们对自然气候系统变化的认识，远远超出了现有长达一个世纪的仪器记录的范围，并帮助我们理解数千年前发生的气候变化。反过来，这种对我们气候系统的增强知识增加了我们对我们正在经历的快速气候变化的理解。同样，过去加拿大太平洋沿岸大地震的性质和频率也可以从这些层状海洋沉积物记录中得到解释。