(Figure 5a) Annually averaged LA-ICP-MS Fe56 measurements (1-1820) with applied Gaussian filter on ice core KCC from Colle Gnifetti

Dataset corresponds to Figure 5a in the final manuscript. Annually averaged LA-ICP-MS Fe56 measurements from 1-1820 C.E. with applied Gaussian Filter.Note: For more information on post-processing of LA-ICP-MS Data - see supplementary material of Clifford et al. (2019)本数据集对应终稿手稿中的图5a。采用高斯滤波器处理后的公元1年至1820年的年平均激光剥蚀电感耦合等离子体质谱（LA-ICP-MS）铁56（Fe56）测量数据。注：若需了解LA-ICP-MS数据后处理的更多细节，请参阅Clifford等人（2019）的补充材料。