中国旱涝分布图（1671-1770年）

该数据集是在国家科技基础平台“地球系统科学数据共享网”项目的支持下，以中国气象科学研究院主编，全国32家单位协作完成的《中国近五百年旱涝分布图集》为数据源，经扫描人工数字化得到的100年的矢量图。数据集包括：（1）1671-1770年中国旱涝灾害分布图，每年一幅，共100幅。将有数据的区域划分为“旱”区，“涝”区，“正常”3级；（2）1671-1770年中国旱涝灾害分布点数据，每年一期，共100期，覆盖全国范围，含122个站点，其中西部地区早期资料有缺失,东部地区较为完整。并将有资料的站点分为1,2,3,4,5(即涝、偏涝、正常、偏旱、旱)5个等级。该数据为研究中国的旱涝情况、气候变化，分析、利用气候资源提供数据支持，也为政府部分提供决策参考。

This dataset is developed by scanning and manually digitizing the "Atlas of Drought and Flood Disaster Distribution in China Over the Past 500 Years", which was compiled by the Chinese Academy of Meteorological Sciences and collaboratively completed by 32 national institutions, under the support of the National Science and Technology Basic Platform "Earth System Science Data Sharing Network" project. (1) Distribution maps of drought and flood disasters in China from 1671 to 1770: 100 maps in total, with one map per year. Areas with available data are classified into three levels: "drought", "flood" and "normal". (2) Point-based distribution data of drought and flood disasters in China from 1671 to 1770: 100 datasets in total, one dataset per year, covering the entire country and including 122 meteorological stations. Early records in the western region are partially missing, while the eastern region has relatively complete data. Stations with valid observations are classified into five levels: 1 (flood), 2 (moderate flood), 3 (normal), 4 (moderate drought) and 5 (severe drought). This dataset provides data support for research on China's drought and flood conditions, climate change, climate resource analysis and utilization, and also offers decision-making references for government departments.