Articles | Volume 17, issue 4
https://doi.org/10.5194/essd-17-1595-2025
https://doi.org/10.5194/essd-17-1595-2025
Data description paper
 | 
16 Apr 2025
Data description paper |  | 16 Apr 2025

Homogenized daily sunshine duration over China from 1961 to 2022

Yanyi He, Kaicun Wang, Kun Yang, Chunlüe Zhou, Changkun Shao, and Changjian Yin

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Revised manuscript accepted for ESSD
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Cited articles

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Baumgartner, D., Pötzi, W., Freislich, H., Strutzmann, H., Veronig, A., Foelsche, U., and Rieder, H.: A comparison of long-term parallel measurements of sunshine duration obtained with a Campbell-Stokes sunshine recorder and two automated sunshine sensors, Theor. Appl. Climatol., 133, 263–275, 2018. 
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Short summary
To address key gaps in data availability and homogeneity with regard to sunshine duration, we compiled raw data and made a homogenization protocol to produce a homogenized daily observational dataset of sunshine duration from 1961 to 2022 in China. The dataset avoids a sharp drop in zero-value frequency after 2019 as caused by the instrument upgrade but is also more continuous for various periods. This dataset is crucial for accurately assessing dimming and brightening and for supporting other applications.
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