Source Data for: Contamination of 8.2 ka cold climate records by the Storegga tsunami in the Nordic Seas

The dataset contains source data for figures 2 and 3 contained in the article \"Contamination of 8.2 ka cold climate records by the Storegga tsunami in the Nordic Seas\". In a simulation of the Storegga tsunami generated from the Storegga Landslide we calculated the maximum flow velocity to be 2–5 m/s on the shelf offshore western Norway and in the shallower parts of the North Sea, and up to about 1 m/s down to a water depth of 1000 m. Data from this simulation for three locations is presented in the files: \"Figure_2a-MD95-2011.txt\", \"Figure_2b-LINK14.txt\" and \"Figure_2c-Troll_28-03.txt\" (see below). We re-investigated sediment core MD95-2011, from which a large and abrupt 8.2 ka cooling had been inferred, and found the cold-water foraminifera to be re-deposited and 11,000 years of age. Oxygen isotopes of the recycled foraminifera and the content of sand grains, thought to be dropped from ice bergs, might have led to an interpretation of a too large and dramatic climate cooling. Data from sediment core MD95-2011 is found in the files: \"Figure_3a-Sand.txt\", \"Figure_3b-Planktonic_forams.txt\", \"Figure_3c-Benthic_forams.txt\" and \"Figure_3d-Oxygen_isotopes.txt\". Calibration af radiocarbon ages of green moss dates from the Storegga tsunami deposits in file: \"Figure_3e-Calibration_moss_ages.txt\".

本数据集包含论文《北欧海域Storegga海啸（Storegga Tsunami）对8.2 ka冷气候记录的污染》（原文标题：Contamination of 8.2 ka cold climate records by the Storegga tsunami in the Nordic Seas）中图2与图3的源数据。本研究针对由Storegga滑坡（Storegga Landslide）引发的Storegga海啸开展数值模拟，计算得到挪威西部近海陆架及北海水深较浅区域的最大流速为2~5 m/s，在水深1000 m处的最大流速可达约1 m/s。该模拟的三个点位数据分别存储于文件"Figure_2a-MD95-2011.txt"、"Figure_2b-LINK14.txt"与"Figure_2c-Troll_28-03.txt"（详见下文）。本研究重新对沉积物岩芯MD95-2011开展分析，该岩芯此前曾被推断存在一次显著且突变的8.2 ka冷事件，但本研究发现其中的冷水有孔虫为再沉积产物，形成年代距今11000年。此前曾基于该再沉积有孔虫的氧同位素数据以及被认为由冰山搬运沉降的砂粒含量，推断存在一次强度过大的极端气候降温事件。沉积物岩芯MD95-2011的相关数据存储于以下文件："Figure_3a-Sand.txt"、"Figure_3b-Planktonic_forams.txt"、"Figure_3c-Benthic_forams.txt"与"Figure_3d-Oxygen_isotopes.txt"。本研究对文件"Figure_3e-Calibration_moss_ages.txt"中Storegga海啸沉积层内的绿色苔藓样品的放射性碳年代开展校准。