Ocean sediment drifts contain important information about past bottom currents but a direct link between the study of sedimentary archives and ocean dynamics is not always possible. To close this gap for the North Atlantic, we set up a new coupled Ice-Ocean-Sediment Model of the N. Atlantic - Arctic region. In order to evaluate the potential dynamics of the model, we conducted decadal sensitivity experiments. In our model contouritic sedimentation shows a significant sensitivity towards climate variability for most of the contourite drift locations in the model domain. We observe a general decrease of sedimentation rates during warm conditions with decreasing atmospheric and oceanic gradients and an extensive increase of sedimentation rates during cold conditions with respective increased gradients. We can relate these results to changes in the dominant bottom circulation supplying deep water masses to the contourite sites under different climate conditions. A better understanding of northern deep water pathways in the Atlantic Meridional Overturning Circulation (AMOC) is crucial for evaluating possible consequences of climate change in the ocean.

海洋沉积物漂流包含有关过去海流的重要信息，但沉积档案研究与海洋动力学之间的直接联系并非总是可能的。为了弥合北大西洋的这一缺口，我们建立了一个新的北大西洋-北极地区冰海-沉积物耦合模型。为了评估该模型的潜在动态，我们进行了十年敏感性实验。在我们的模型中，对于模型域中大多数轮廓线漂移位置，轮廓沉积显示出对气候变化的显着敏感性。我们观察到，在温暖的条件下，随着大气和海洋梯度的减少，沉积速率普遍下降；在寒冷的条件下，随着梯度的增加，沉积速率普遍增加。我们可以将这些结果与在不同气候条件下向深水层站点供应深水团块的主要底部循环的变化联系起来。更好地了解大西洋子午翻转环流（AMOC）中的北部深水路径对于评估海洋气候变化的可能后果至关重要。