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Article

Spatio-Temporal Variation Characteristics of Snow Depth and Snow Cover Days over the Tibetan Plateau

1
College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China
2
School of Geographic Sciences, Xinyang Normal University, Xinyang 464099, China
3
Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang 464099, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Christophe Kinnard
Water 2021, 13(3), 307; https://doi.org/10.3390/w13030307
Received: 14 December 2020 / Revised: 21 January 2021 / Accepted: 22 January 2021 / Published: 27 January 2021
(This article belongs to the Special Issue Whither Cold Regions Hydrology under Changing Climate Conditions)
Changes in snow cover over the Tibetan Plateau (TP) have a significant impact on agriculture, hydrology, and ecological environment of surrounding areas. This study investigates the spatio-temporal pattern of snow depth (SD) and snow cover days (SCD), as well as the impact of temperature and precipitation on snow cover over TP from 1979 to 2018 by using the ERA5 reanalysis dataset, and uses the Mann–Kendall test for significance. The results indicate that (1) the average annual SD and SCD in the southern and western edge areas of TP are relatively high, reaching 10 cm and 120 d or more, respectively. (2) In the past 40 years, SD (s = 0.04 cm decade−1, p = 0.81) and SCD (s = −2.3 d decade−1, p = 0.10) over TP did not change significantly. (3) The positive feedback effect of precipitation is the main factor affecting SD, while the negative feedback effect of temperature is the main factor affecting SCD. This study improves the understanding of snow cover change and is conducive to the further study of climate change on TP. View Full-Text
Keywords: climate change; the Tibetan Plateau; snow depth; snow cover days; Mann–Kendall test climate change; the Tibetan Plateau; snow depth; snow cover days; Mann–Kendall test
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MDPI and ACS Style

Zhang, C.; Mou, N.; Niu, J.; Zhang, L.; Liu, F. Spatio-Temporal Variation Characteristics of Snow Depth and Snow Cover Days over the Tibetan Plateau. Water 2021, 13, 307. https://doi.org/10.3390/w13030307

AMA Style

Zhang C, Mou N, Niu J, Zhang L, Liu F. Spatio-Temporal Variation Characteristics of Snow Depth and Snow Cover Days over the Tibetan Plateau. Water. 2021; 13(3):307. https://doi.org/10.3390/w13030307

Chicago/Turabian Style

Zhang, Chi, Naixia Mou, Jiqiang Niu, Lingxian Zhang, and Feng Liu. 2021. "Spatio-Temporal Variation Characteristics of Snow Depth and Snow Cover Days over the Tibetan Plateau" Water 13, no. 3: 307. https://doi.org/10.3390/w13030307

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