Significant Impacts of Rainfall Redistribution through the Roof of Buildings on Urban Hydrology
文献类型：期刊论文
| 作者 | Cao, Xuejian1; Qi, Youcun2,3; Ni, Guangheng1 |
| 刊名 | JOURNAL OF HYDROMETEOROLOGY
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 22期号:4页码:1007-1023 |
| 关键词 | Flood events Precipitation Hydrology Hydrometeorology Radars Radar observations Hydrologic models |
| ISSN号 | 1525-755X |
| DOI | 10.1175/JHM-D-20-0220.1 |
| 通讯作者 | Qi, Youcun(youcun.qi@igsnrr.ac.cn) |
| 英文摘要 | Microtopography on a building roof will direct rainfall from roofs to the ground through downspouts and transform the rainfall spatial distribution from plane to points. However, the issues on whether and how the building-induced rainfall redistribution (BIRR) influences hydrologic responses are still not well understood despite the numerous downspouts in the urban area. Hence, this study brings the roof layer into a grid-based urban hydrologic model (gUHM) to quantitatively evaluate the impacts of BIRR, aiming to enhance the understanding of building effects in urban hydrology and subsequently to identify the necessity of incorporating BIRR into flood forecasting. Nine land development strategies and 27 rainfall conditions are considered herein to characterize the changing circumstance. Results indicate that the impacts of BIRR depend on multiple circumstance factors and are nonnegligible in urban hydrology. The BIRR causes not only bidirectional impacts on the hydrologic characteristic values (e.g., peak flow and runoff volume) but also an obvious alteration of the hydrograph. Overall, the BIRR tends to increase the peak flow, and more importantly, the impact will be aggravated by the increase of rainfall intensity with the maximum relative error of peak flow approaching 10%. This study contributes to a better understanding of building effects on urban hydrology and a step forward to reduce the uncertainty in urban flood warnings. |
| WOS关键词 | GREEN INFRASTRUCTURE ; CLIMATE-CHANGE ; SOIL-MOISTURE ; FLOOD ; MODEL ; IMPERVIOUSNESS ; URBANIZATION ; SIMULATION ; RESOLUTION ; SURFACE |
| 资助项目 | National Key Research and Development Project[2018YFC1507505] ; National Natural Science Foundation of China[51679119] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000644214500017 |
| 出版者 | AMER METEOROLOGICAL SOC |
| 资助机构 | National Key Research and Development Project ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/162629]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Qi, Youcun |
| 作者单位 | 1.Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Xuejian,Qi, Youcun,Ni, Guangheng. Significant Impacts of Rainfall Redistribution through the Roof of Buildings on Urban Hydrology[J]. JOURNAL OF HYDROMETEOROLOGY,2021,22(4):1007-1023. |
| APA | Cao, Xuejian,Qi, Youcun,&Ni, Guangheng.(2021).Significant Impacts of Rainfall Redistribution through the Roof of Buildings on Urban Hydrology.JOURNAL OF HYDROMETEOROLOGY,22(4),1007-1023. |
| MLA | Cao, Xuejian,et al."Significant Impacts of Rainfall Redistribution through the Roof of Buildings on Urban Hydrology".JOURNAL OF HYDROMETEOROLOGY 22.4(2021):1007-1023. |
入库方式： OAI收割
来源：地理科学与资源研究所
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