中国旱涝分布图（1771-1870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）1771-1870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）1771-1870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 a 100-year vector dataset obtained through scanning and manual digitization, sourced from *Atlas of Drought and Flood Distribution in China over the Past 500 Years*, which was compiled by the Chinese Academy of Meteorological Sciences and collaboratively completed by 32 institutions across China, with support from the National Science and Technology Infrastructure Platform "Earth System Science Data Sharing Network".
The dataset includes two parts:
(1) Distribution maps of drought and flood disasters in China from 1771 to 1870, with one map per year, totaling 100 maps. The regions with available data are classified into three categories: "drought-stricken areas", "flood-stricken areas", and "normal conditions".
(2) Point data of drought and flood disaster distributions in China from 1771 to 1870, with one dataset per year, totaling 100 datasets covering the entire country. It contains 122 meteorological stations, among which early data for the western region is partially missing, while the eastern region has relatively complete records. The stations with available data are classified into five grades: 1 (severe 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 relevant government departments.

搜集汇总

背景与挑战

背景概述

该数据集包含1771-1870年中国旱涝灾害分布图和点数据，每年一幅图或一期数据，共100幅/期，覆盖全国范围，分为旱、涝、正常3级或5个等级。数据来源于历史文献和实测降水量评定，为研究中国旱涝情况和气候变化提供支持。