Development and application of geochemical and isotopic tracers to investigate the impact of oceanic processes on climate change.

开发和应用地球化学和同位素示踪剂来研究海洋过程对气候变化的影响。

• 批准号: 312376-2010
• 负责人: François, Roger
• 金额: $ 3.13万
• 依托单位: University of British Columbia
• 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=457389
• 关键词: Development; application; geochemical; isotopic; tracers

Human activities are having an increasingly alarming impact on the environment and we must improve our predictive capabilities to decide on optimal societal responses. Foremost among these concerns are the current rise in anthropogenic CO2 and its effect on climate. Atmospheric CO2 and climate have also changed in the past as a result of natural cycles and the oceans have played a major role in these past variations. Exchange between the atmosphere and the ocean is one of the main factors regulating the level of atmospheric CO2 on a range of time scales and ocean circulation is an important contributor to the redistribution of solar heat on the surface of the planet. Today, the ocean is the major sink for anthropogenic CO2 and concerns have been raised that impending changes in deep water circulation could affect the future evolution of climate.

人类活动对环境产生的影响越来越令人担忧，我们必须提高预测能力，以决定最佳的社会应对措施。这些担忧中最重要的是当前人为二氧化碳的增加及其对气候的影响。由于自然循环，大气中的二氧化碳和气候在过去也发生过变化，而海洋在这些过去的变化中发挥了重要作用。大气和海洋之间的交换是在一定时间尺度上调节大气二氧化碳水平的主要因素之一，海洋环流是太阳热量在地球表面重新分配的重要贡献者。如今，海洋是人为二氧化碳的主要汇，人们担心深水环流即将发生的变化可能会影响未来气候的演变。