基于自记观测和自动站观测的四川省降水数据集研究与应用

Research and Application of Precipitation Dataset in Sichuan Province Based on Self-recording Observation and Automatic Station Observation

历史气象资料的数字化技术和科学研究不断发展和进步,通过对四川省国家级气象站近80万页降水自记纸迹线的数字化,并融合气象站升级自动观测系统后的降水观测数据,研制四川省序列最长、时间密度最大的降水强度数据集,将四川省降水分钟数据提前到1951年;通过对数据集的完整性、规范性、数据约束等质量控制以及各相同时段降水过程总量最大值和对应时间过程等一致性对比分析,评估该数据集的适用性和准确性;广泛开展历史气象资料的拯救、数字化等研究活动,深度挖掘珍贵历史资料最大信息,为气象服务和科学研究提供更好的数据支撑,实现历史气象观测记录的科学价值。

The digitization technology and scientific research of historical meteorological data have undergone continuous development.Through the digitization of nearly 800,000 pages of precipitation self-recording paper traces of the national meteorological stations in Sichuan Province,and the integration of precipitation observation data after the upgrading of the automatic observation system of the meteorological stations,the precipitation intensity dataset with the longest sequence and the highest time density in Sichuan Province was developed,and the precipitation minute data of Sichuan Province was advanced to 1951.The applicability and accuracy of the dataset was evaluated by the quality control of the dataset,including the completeness,normativity,and data constraints,and by comparing the consistency of the maximum values of the total precipitation processes in the same time periods and the corresponding time processes.Extensive research activities such as the rescue and digitization of historical meteorological data are carried out to dig deep into the maximum information of precious historical data,provide better data application support for meteorological services and scientific research,and realize the scientific value of historical meteorological observation records.