China 2023 hourly seamless tropospheric NO2 column density dataset

This dataset contains the hourly, gapless tropospheric NO₂ column density over China for 2023, with a spatial resolution of 0.05° and temporal resolution of 1 hour. The unit of NO₂ column density is molecules/cm². The dataset was generated based on GEMS satellite observations, and integrated with multi-source auxiliary data including GEOS-CF model simulations, meteorological data, vegetation indices, and nighttime light data. A machine learning method was used to produce the gapless dataset, which is stored in GeoTIFF format.