Magnetic storm observations from the Prague-Clementinum observatory on 1846-09-22

Data of magnetic storms recorded at the Prague-Clementinum observatory in 1839-1849 are presented. The data were obtained by digitising and processing the original old records published in the yearbooks of this historical observatory. The data set contains variation of declination [min] and horizontal magnetic field [nT] of 73 magnetic storms with the magnitudes being of at least a moderate level completed with the baseline of declination [deg] and baseline of horizontal megnetic field [nT]. All time data were transformed into UT, based on the longitude of the Göttingen observatory, which was 9.950°. The time shift is thus 39'48''. The date in the file name indicates the start day of the storm.

本文呈现了1839-1849年间布拉格-克莱门汀天文台记录的磁暴数据。这些数据通过对该历史天文台年鉴中刊载的原始旧记录进行数字化与处理获得。该数据集包含73次至少为中等强度的磁暴的磁偏角变化[min]和水平磁场变化[nT]，并辅以磁偏角基线[deg]和水平磁场基线[nT]。所有时间数据均基于哥廷根天文台的经度（9.950°）转换为世界时（UT），因此时间偏移为39'48''。文件名中的日期指示了磁暴的起始日。