APHRODITE高分辨率逐日降水资料在中国大陆地区的适用性

通过收集、整理中国历史上各类逐小时降水数据源，建立了中国国家级地面气象台站逐小时降水数据集。质量评估结果显示，绝大部分台站实有率在90%以上，中国东部沿海和贵州、湖南等省份数据实有率偏低。
各台站数据正确率普遍较高，正确率低于98%的台站数占总站数的0.7%，正确率在98%~99%区间的台站占总站数的1.8%，其余97.5%的站数据正确率都高于99%。逐小时降水量的日合计量和人工观测日降水量差值在1 mm以内的占92.1%，在0.5~5 mm间的占16.37%，超过5 mm的不到9‰。

Assessing objective tetechniques for gauge-based analyses of global daily precipitation

An hourly precipitation database has been developed by collecting and assembling various historical data from national meteorological stations in China. Quality assessment indicates that the vast majority of stations have a data availability rate of 90% or higher, while stations in China's eastern coastal areas and Guizhou, Hunan and other provinces have a low rate of data. The rate of data correctness at all stations is generally high; those with correctness rate lower than 98% accounts for 0.7%, and those with correctness rate of 99% to 98% accounts for 1.8%. The remaining 97.
5% of the stations have correctness rate higher than 99%. Comparing the daily precipitations calculated from hourly values and that manually measured, there are 92.1% of stations with difference less than 1 mm, 16.37% of stations with the difference of 0.5 – 5mm, and only 0.9% of stations with the difference greater than 5 mm.