Arctic hydrogeology and paleoclimatology

北极水文地质学和古气候学

• 批准号: 346106-2007
• 负责人: Clark, Ian
• 金额: $ 0.73万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Northern Research Supplement
• 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=458875
• 关键词: Arctic; hydrogeology; paleoclimatology

Canada's cryosphere constitutes roughly one half of its land mass, and is underlain by perennially frozen terrain - permafrost - that completely alters the mechanisms we know to govern water movement through watersheds in temperate landscapes. Groundwater movement through unfrozen zones in permafrost is an important component of the Arctic hydrological cycle, as it provides base flow for fish spawning habitat. It is involved in the formation of endostromatolites, biomineralizations that hold paleoclimate information as well as information on life in extreme environments. Long-term impacts of groundwater in talik include effects on nuclear waste repositories and on mining in the north.

加拿大的冰冻圈约占其陆地面积的一半，其下方是常年冻结的地形-永久冻土-这完全改变了我们所知道的在温带景观中管理流域水运动的机制。地下水通过永久冻土中未冻带的流动是北极水文循环的一个重要组成部分，因为它为鱼类产卵生境提供了基流。它参与了内基质层的形成，生物矿化作用保存了古气候信息以及极端环境中的生命信息。talik地下水的长期影响包括对核废料储存库和北部采矿业的影响。