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Effects of land use and cover change on surface wind speed in China


The surface wind speed (SWS) is affected by both large-scale circulation and land use and cover change (LUCC). In China, most studies have considered the effect of large-scale circulation rather than LUCC on SWS. In this study, we evaluated the effects of LUCC on the SWS decrease during 1979–2015 over China using the observation minus reanalysis (OMR) method. There were two key findings: (1) Observed wind speed declined significantly at a rate of 0.0112 m/(s•a), whereas ERA-Interim, which can only capture the inter-annual variation of observed data, indicated a gentle downward trend. The effects of LUCC on SWS were distinct and caused a decrease of 0.0124 m/(s•a) in SWS; (2) Due to variations in the characteristics of land use types across different regions, the influence of LUCC on SWS also varied. The observed wind speed showed a rapid decline over cultivated land in Northwest China, as well as a decrease in China's northeastern and eastern plain regions due to the urbanization. However, in the Tibetan Plateau, the impact of LUCC on wind speed was only slight and can thus be ignored.
Download Comment From cooperative journals:《Journal of Arid Land》 Hits:4558 Downloads:494
Recommended references: LI Yupeng.(2019).Effects of land use and cover change on surface wind speed in China.Journal of Arid Land.[ChinaXiv:201906.00048] (Click&Copy)
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[V1] 2019-06-20 20:26:26 chinaXiv:201906.00048V1 Download
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