Articles | Volume 13, issue 5
https://doi.org/10.5194/essd-13-2147-2021
https://doi.org/10.5194/essd-13-2147-2021
Data description paper
 | 
19 May 2021
Data description paper |  | 19 May 2021

Long-term trends of ambient nitrate (NO3) concentrations across China based on ensemble machine-learning models

Rui Li, Lulu Cui, Yilong Zhao, Wenhui Zhou, and Hongbo Fu

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Cited articles

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A unique monthly NO3− dataset at 0.25° resolution over China during 2005–2015 was developed by assimilating multi-source variables. The newly developed product featured an excellent cross-validation R2 value (0.78) and relatively lower RMSE (1.19 μg N m−3) and mean absolute error (MAE: 0.81 μg N m−3). The dataset also exhibited relatively robust performance at the spatial and temporal scales. The dataset over China could deepen knowledge of the status of N pollution in China.
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