Gridded hourly precipitation dataset at 1 km resolution over Anhui Province 2008 – 2018

Anhui province is located at the East Asian Monsoon region, which is a key region for the study on the initiation and development of the monsoon precipitation. The gridded hourly precipitation data at high spatial-temporal resolution is highly needed for the study on the climate change and the meteorological risk easements. On the basis of the hourly precipitation observed from about 2000 regional stations and 81 national stations, taking advantage of the thin plate smoothing spline method, the best model parameters are chosen firstly by comparing the accuracy of different model parameters. Hereafter, the Gridded hourly precipitation dataset at 1 km resolution over Anhui Province 2008 – 2018 are established using the best model parameters. This dataset can fully grasp the seasonal and spatial variations of precipitation over Anhui province, which can be used in the numerical model analysis and risk assement of floods in the future.

安徽省位于东亚季风区，该区域是研究季风降水起始与发展过程的关键地带。针对气候变化与气象风险缓解研究，迫切需要高时空分辨率的网格化小时降水数据。基于约2000个区域站和81个国家站的观测小时降水数据，通过利用薄板样条平滑法，首先通过比较不同模型参数的准确性来选取最佳模型参数。随后，利用这些最佳模型参数建立了覆盖安徽省2008至2018年间的1公里分辨率网格化小时降水数据集。该数据集能够全面捕捉安徽省降水在季节和空间上的变化，未来可用于数值模型分析和洪水风险评估。