[under submission] Dataset of GraphCast/ML/GPT3 model estimated PWV using radiosonde/GNSS data

In the manuscript "Real-time Global GNSS Precipitable Water Vapor Retrieval Method based on State-of-art AI Model",  this data is the three models(GraphCast, GPT3 mode, and the stacked Machine-learning Model) output files used in the validation. The data files are archived by two types: Radiosonde validation results and ESSD validation results.