Laurentide Ice Sheet Instability: Heinrich Events in the Labrador Sea, and Rapid Climate Changes

9321135安德鲁斯该奖项是对一项研究的支持，该研究旨在继续发展年代学，重建古环境，并了解与上一次冰川周期中劳伦蒂德冰盖东部主要冰盖不稳定(海因里希事件)相关的过程。在北美大陆冰期，哈德逊海峡排干了劳伦蒂冰盖的四分之一到三分之一，是将水、沉积物和冰山从冰盖输送到北大西洋的主要通道。这些物质流入拉布拉多海和北大西洋的流量将对全球气候系统产生巨大影响。已经确定了一些核心进行研究，这些核心将提供数百年到十年时间尺度上的冰盖(海因里希)事件的高分辨率记录。***

9321135 Andrews This award is for support for a study to continue development of a chronology, reconstruct paleoenvironments, and understand the processes associated with major ice sheet instability (Heinrich events) of the eastern sector of the Laurentide Ice Sheet over the last glacial cycle. During the continental glaciation of North America, Hudson Strait drained a quarter to a third of the Laurentide Ice Sheet and was the major conduit for the transport of water, sediment, and icebergs from the ice sheet into the North Atlantic. The fluxes of these materials into the Labrador Sea and North Atlantic would have had a dramatic effect on the global climate system. A number of cores have been identified for study that will provide high-resolution records of ice sheet (Heinrich) events on centuries to decadal time scales. ***