Half-century urban drying in Shijiazhuang City,Environmental Research Communications

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Half-century urban drying in Shijiazhuang City
Environmental Research Communications ( IF 2.5 ) Pub Date : 2020-07-28 , DOI: 10.1088/2515-7620/aba10f
Tao Bian _{1,

2} , Guoyu Ren _{1,

3} , Xuan Zhao ₂ , Panfeng Zhang ₁ , Xiliang Li ₂ , Wenqian Jia ₁

Affiliation

Climatic and environmental change in urban areas attracts more and more attention with rapid urbanization worldwide. Change in key surface climatic variables in urban areas is a core component of urban climatic change. Here we report an analysis of relative humidity (RH) change in Shijiazhuang City, China, over the period 1963–2012, based on the RH data of a typical urban s tation and the surrounding rural stations. We found that the annual mean RH at the urban station underwent a more significant downward trend (−0.74%/10 yr) than those at the four rural stations (−0.16%/10 yr on average), and the most significant decrease occurred after 1990s; urbanization effect on the decrease of annual mean RH at the urban s tation reached −0.59%/10 yr, which was highly significant, with the urbanization contribution to the overall RH decrease being 78.7%, indicating that the trend of urban drying was caused dominantly by the urbanization; urbanization effects on seasonal mean R...

更新日期：2020-08-31

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