| Title | Dominant Factors in the Temporal and Spatial Distribution of Precipitation Change in the Beijing-Tianjin-Hebei Urban Agglomeration |
| Authors | Wei, Feili Liang, Ze Ma, Weijing Shen, Jiashu Wang, Yueyao Liu, Dahai Li, Shuangcheng |
| Affiliation | Minist Nat Resources, Inst Oceanog 1, Key Lab Coastal Sci & Integrated Management, Qingdao 266061, Peoples R China Peking Univ, Coll Urban & Environm Sci, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China |
| Keywords | METROPOLITAN-AREA CLIMATE-CHANGE URBANIZATION IMPACT PATTERNS AEROSOLS WRF VULNERABILITY TEMPERATURE POPULATION |
| Issue Date | Jun-2022 |
| Publisher | REMOTE SENSING |
| Abstract | Urbanization has a significant influence on precipitation, but existing studies lack the spatial and temporal heterogeneity analysis of its impact on precipitation in urban areas at different levels. This study investigates the spatial heterogeneity of precipitation and the influencing factors on six dimensions in 156 urban areas in the Beijing-Tianjin-Hebei urban agglomeration from 2000 to 2018, utilizing a mixed-methods analytical approach. The results show that the change in the natural factor layer caused by urbanization was the most important factor, affecting urban precipitation variation in summer and over the whole year, accounting for 34.5% and 10.7%, respectively. However, the contribution of the urban thermal environment in summer cannot be ignored, and the change in the urban thermal environment caused by human activities in winter is an important influencing factor. When considering the optimal combination of factors, relative humidity was shown to be significant in the spatial variations in precipitation during summer, which contributed 26.2%, followed by human activity as indicated by night-time light intensity. Over the whole year, aerosol optical depth makes the substantial contribution of 21.8% to urban precipitation change. These results provide benchmarks for improving the adaptability of urban-environment change and urban planning in the context of urbanization. |
| URI | http://hdl.handle.net/20.500.11897/648477 |
| DOI | 10.3390/rs14122880 |
| Indexed | SCI(E) |
| Appears in Collections: | 城市与环境学院 地表过程分析与模拟教育部重点实验室 |
