| Abbreviation | Full phrase |
| CC | Pearson correlation coefficient |
| CGDPA | Chinese Rain Gauge‐based Daily Precipitation Analysis |
| CHIRPS | Climate Hazards group Infrared Precipitation with Stations |
| CMA | China Meteorological Administration |
| CMORPH | Climate Prediction Center (CPC) MORPHing technique bias corrected (CRT) |
| CPC | Climate Prediction Center |
| CR | critical rainfall |
| CSI | Critical success index |
| ERA‐Interim | ECMWF ReAnalysis Interim |
| ERA5 | Fifth generation of ECMWF atmospheric reanalyses of the global climate |
| FAR | False alarm ratio |
| FFG | Flash Flood Guidance |
| GPM | Global Precipitation Measurement |
| GSMaP | Global Satellite Mapping of Precipitation |
| GSMaP | Gauge‐adjusted Global Satellite Mapping of Precipitation V6/V7 |
| IMERG | Integrated Multi‐satellitE Retrievals for Global Precipitation Measurement |
| IMERG_cal | IMERG calibrated precipitation |
| IMERG_uncal | IMERG uncalibrated precipitation |
| IMERG‐E | IMERG Early run |
| IMERG‐F | IMERG Final run |
| KGE’ | Kling‐Gupta efficiency |
| ME | Mean error |
| MERRA2 | The Modern‐Era Retrospective Analysis for Research and Applications, Version 2 |
| MTC | Multiplicative TC |
| NE | Northeastern region |
| PCDR | PERSIANN‐Climate Data Record |
| PERSIANN | Precipitation Estimation from Remotely Sensed Imagery Using Artificial Neural Networks |
| PERSIANN‐CCS | PERSIANN‐ Cloud Classification System |
| POD | Probability of detection |
| RMSE | Root mean square error |
| RTI | Rain Trigger Index |
| SM2RAIN | SM2RAIN based on ESA Climate Change Initiative (CCI) |
| SMI | Soil Moisture Index |
| T3B42 | TRMM Multi‐satellite Precipitation Analysis (TMPA) 3B42 V7 |
| TC | Triple collocation |
| TMI | TRMM microwave imager |
| TMPA | TRMM multi‐satellite precipitation analysis |
| TP | Qinghai‐Tibet Plateau |
| XJ | Xinjiang Province |
