Preprints
https://doi.org/10.5194/tc-2020-202
https://doi.org/10.5194/tc-2020-202
12 Aug 2020
 | 12 Aug 2020
Status: this preprint was under review for the journal TC but the revision was not accepted.

Snow cover variations across China from 1951–2018

Xiaodong Huang, Changyu Liu, Zhaojun Zheng, Yunlong Wang, Xubing Li, and Tiangang Liang

Abstract. Based on a snow depth dataset retrieved from meteorological stations, this experiment explored snow indices, including snow depth (SD), snow covered days (SCDs), and snow phenology variations, across China from 1951 to 2018. The results indicated that the snow cover in China exhibits regional differences. The annual mean SD tended to increase, and the increases in mean and maximum snow depth were 0.04 cm and 0.1 cm per decade, respectively. SCDs tended to increase by approximately 0.5 days per decade. The significant increases were concentrated at latitudes higher than 40° N, especially in Northeast China. However, in the Tibetan Plateau, the SD and SCDs tended to decrease but not significantly. Regarding the snow phenology variations, the snow duration days in China decreased, and 25.2 % of the meteorological stations showed significant decreasing trends. This result was mainly caused by the postponement of the snow onset date and the advancement of the snow end date. Geographical and meteorological factors are closely related to snow cover, especially the change in temperature, which will lead to significant changes in snow depth and phenology.

Xiaodong Huang, Changyu Liu, Zhaojun Zheng, Yunlong Wang, Xubing Li, and Tiangang Liang
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Xiaodong Huang, Changyu Liu, Zhaojun Zheng, Yunlong Wang, Xubing Li, and Tiangang Liang
Xiaodong Huang, Changyu Liu, Zhaojun Zheng, Yunlong Wang, Xubing Li, and Tiangang Liang

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Latest update: 28 Mar 2024
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Short summary
In the study, the long-term snow cover variation and distribution characteristics are illustrated across China during the period of 1951–2018, using the snow depth dataset retrieve from the National Meteorological Information Center of the China Meteorological Administration. The geographical and meteorological factors were closely related to snow cover change, especially the change in temperature, which will lead to significant changes in snow depth and phenology in mainland China.