Recently, the most influential journals in geosciences, Reviews of Geophysics (IF = 12.34), published a co-authored paper titled "A Review of Global Precipitation Data Sets: Data Sources, Estimation, and Intercomparisons" written by Dr. Sun Qiaohong (first author), Professor MIU Chiyuan (Corresponding author), a comprehensive and systematic review of advances in global precipitation data sets. As the most influential journals in the field of geosciences, Reviews of Geophysics publishes about 20 papers each year, which include natural geography, cryosphere science, atmospheric science, marine science, and space physics, and only accept the draft.
In the context of global change, Reliable Precipitation Estimation is a prerequisite for the rational implementation of "climate change detection and attribution", "numerical model calibration and verification", and "eco-hydrological process simulation and prediction." At present, precipitation products mainly include "ground-based rain gauge observation", "radar estimation", "satellite observation inversion", and "reanalysis data of assimilation technology generation". The differences among different products are obvious. Therefore, this study comprehensively reviewed the development of global scale aquatic products. From the aspects of original data sources, quality control methods, interpolation and optimization algorithms, space-time coverage, space-time distribution of mean and extreme, and contrast, The current 30 global precipitation products. Based on this, in view of the current problems of precipitation products, this study explores the opportunities and challenges of precipitation products in the future. At the end of the paper, the study disclosed the source code for reading all precipitation products.
The research was supported by the National Natural Science Foundation Outstanding Young Scientist Fund Project "Water and Sediment Effects of Climate Change".