Sea surafce temperature reconstruction for sediment core SU81-18

Reconstructing the impact of Heinrich events outside the main belt of ice rafting is crucial to understanding the underlying causes of these abrupt climatic events. A high-resolution study of a marine sediment core from the Iberian margin demonstrates that this midlatitude area was strongly affected both by cooling and advection of low-salinity arctic water masses during the last three Heinrich events. These paleoclimatic time series reveal the internal complexity of each of the last three Heinrich events and illustrate the value of parallel studies of the organic and inorganic fractions of the sediments.

重建海因里希事件（Heinrich events）在主要冰筏搬运带以外区域的影响，对于理解这类突发性气候事件的潜在成因具有关键意义。针对伊比利亚陆缘（Iberian margin）的一处海洋沉积物岩芯（marine sediment core）开展的高分辨率研究显示，在最近三次海因里希事件期间，该中纬度区域同时受到气候变冷与低盐度北极水团平流输送的强烈影响。这些古气候时间序列不仅揭示了最近三次海因里希事件各自的内部复杂性，也印证了对沉积物有机组分与无机组分开展平行研究的重要价值。