The glacial lakes of northern Quebec–Labrador and their contribution to the meltwater discharges of the late deglaciation and early Holocene climate interval

魁北克北部拉布拉多冰川湖及其对冰川消融晚期和全新世早期气候区间融水排放的贡献

• 批准号: RGPIN-2017-05431
• 负责人: Roy, Martin
• 金额: $ 2.33万
• 依托单位: Université du Québec à Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633830
• 关键词: glacial; lakes; northern; Quebec; Labrador

The climate variability of the last 15,000 to 7,000 years is commonly linked to the drainage of large glacial lakes that had developed at the margins of the decaying ice masses of the last Ice Age. These massive outbursts of meltwater are believed to have disturbed the North Atlantic Ocean circulation, which plays a fundamental role in regulating Earth’s climate. These former climate-forcing events are now under focus due to a growing number of studies showing that the present-day increase in freshwater releases from the melting of Greenland and other Arctic glaciers may potentially lead to a slowdown of the ocean thermohaline circulation and cause important climate feedbacks.

过去15，000至7，000年的气候变化通常与大冰川湖的排水有关，这些湖泊是在最后一个冰河时代的腐烂冰块边缘形成的。据信，这些大规模的融水爆发扰乱了北大西洋环流，而北大西洋环流在调节地球气候方面起着重要作用。这些以前的气候强迫事件现在受到关注，因为越来越多的研究表明，格陵兰岛和其他北极冰川融化造成的淡水排放量目前增加，可能会导致海洋温盐环流减缓，并造成重要的气候反馈。