The potential of Hudson Valley glacial floods to drive abrupt climate change

Abstract The periodic input of meltwater into the ocean from a retreating Laurentide Ice Sheet is often hypothesized to have weakened Atlantic meridional overturning circulation (AMOC) and triggered several cold periods during last deglaciation (21,000 8,000 years before present). Here, we use numerical model investigate whether Intra-Allerød Cold Period was by drainage Glacial Lake Iroquois, ~13,300 ago. Performing large suite experiments with various combinations single successive, short (1 month) long year) duration flood events, were unable find any significant weakening AMOC. This result suggests that although Hudson Valley floods occurred close beginning Period, they unlikely sole cause. Our results implications for re-evaluating relationship events (past future) climatic cooling, particularly regards location, volume, frequency, duration.