The present article deals with the reconstruction of drought time series in Germany since 1500. The reconstructions are based on historical records from the virtual research environment Tambora (tambora.org, 2018) and official instrumental records. The historical records and recent data were related to each other through modern index calculations, drought categories and their historical equivalents. Historical and modern written documents are also taken into account to analyze the climatic effects and consequences on the environment and society. These pathways of effects are derived and combined with different drought categories. The derived historical precipitation index (HPI) is correlated with the standardized precipitation index (SPI). Finally, a historical drought index (HDI) and a historical wet index (HWI) are derived from the basic monthly precipitation index (PI) from 1500 onward. Both are combined for the historical humidity index (HHI). On this basis, the long-term development of dryness and drought in Germany since 1500, as well as medium-term deviations of drier and wetter periods and individual extreme events, is presented and discussed.

中文翻译：

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自1500年以来德国的干旱重建 结合历史和现代视角诠释信息和工具记录

本文讨论了自1500年以来德国干旱时间序列的重建。重建工作基于虚拟研究环境Tambora的历史记录（tambora.org，2018年）和官方仪器记录。历史记录和最新数据通过现代指数计算，干旱类别及其历史等价物相互关联。还应考虑历史和现代书面文件，以分析气候对环境和社会的影响和后果。这些影响途径是衍生出来的，并与不同的干旱类别结合在一起。导出的历史降水指数（HPI）与标准化降水指数（SPI）相关。最后，历史干旱指数（HDI）和历史湿指数（HWI）从1500年以后的基本月降水指数（PI）中得出。两者都合并为历史湿度指数（HHI）。在此基础上，介绍并讨论了自1500年以来德国干旱和干旱的长期发展，以及干燥和潮湿时期以及个别极端事件的中期偏离。