Articles | Volume 12, issue 4
Earth Syst. Sci. Data, 12, 3067–3080, 2020
https://doi.org/10.5194/essd-12-3067-2020
Earth Syst. Sci. Data, 12, 3067–3080, 2020
https://doi.org/10.5194/essd-12-3067-2020

Data description paper 25 Nov 2020

Data description paper | 25 Nov 2020

A homogenized daily in situ PM2.5 concentration dataset from the national air quality monitoring network in China

Kaixu Bai et al.

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Latest update: 17 Sep 2021
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Short summary
PM2.5 data from the national air quality monitoring network in China suffered from significant inconsistency and inhomogeneity issues. To create a coherent PM2.5 concentration dataset to advance our understanding of haze pollution and its impact on weather and climate, we homogenized this PM2.5 dataset between 2015 and 2019 after filling in the data gaps. The homogenized PM2.5 data is found to better characterize the variation of aerosol in space and time compared to the original dataset.