ChinaHighNO2: OMI/Aura 25 km Ground-level NO2 Dataset for China (Closed)

ChinaHighNO2 is one of the series of long-term, full-coverage, high-resolution, and high-quality datasets of ground-level air pollutants for China (i.e., ChinaHighAirPollutants, CHAP). It is generated from the big data (e.g., ground-based measurements, satellite remote sensing products, atmospheric reanalysis, and model simulations) using artificial intelligence by considering the spatiotemporal heterogeneity of air pollution. 

This is the OMI/Aura-derived yearly 25 km ground-level O3 products in China from 2005 to 2019, and this dataset yields a high quality with a cross-validation coefficient of determination (CV-R2) of 0.72 and a root-mean-square error (RMSE) of 9.97 µg m-3 on a daily basis.

Note that this dataset is closed access since a longer-term, seamless, high-resolution (10 km), and higher quality ChinaHighNO2 dataset is available at: https://doi.org/10.5281/zenodo.4641542

More CHAP datasets of different air pollutants can be found at: https://weijing-rs.github.io/product.html