The Research Progress and Prospects of Climate Model and Hydrological Simulation Key Technology

In recent decades, researchers have conducted a lot of research on scientific issues related to global climate change and hydrological simulation, so it is necessary to conduct a systematic review of it. Firstly, the climate change from observations taking air temperature and precipitation as examples was presented. Then, combined with CMIP6, the key techniques and methods of research on climate models and hydrological simulation were briefly described, which included the research progress of climate model, the construction technology of climate change scenario, the evaluation and future projection of climate models, the selection of hydrological model and the connection technology of climate model and hydrological model. The uncertainty sources and quantitative methods of climate change impact assessment are further introduced. Finally, the problems existing in climate change and hydrological simulation research are discussed, and research prospects are put forward in light of the development needs of the country and industry.