Underground well water level observation grid dataset from 2005 to 2022

The dataset "GWs_cn_1km" provides monthly raster data of groundwater levels in the Chinese region from 2005 to 2022, with a resolution of 1km. The data is sourced from the "China Geological Environment Monitoring Groundwater Level Yearbook", which covers daily groundwater level information. After data cleaning, organization, and inverse distance weighted (IDW) interpolation processing, the accuracy and consistency of the data are ensured, and it can reflect the spatial distribution and temporal changes of groundwater levels in the Chinese region. The quality of the dataset has been rigorously validated, and although interpolation methods may lead to a decrease in local accuracy, the overall data has high representativeness. This dataset has broad application prospects in groundwater resource monitoring, ecosystem research, and decision support. It provides important basis for analyzing the trend of groundwater changes and ecological impact assessment, which can be used for high-resolution modeling and comprehensive environmental research in the future to enhance the scientific basis for groundwater management and protection.