Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1088/1748-9326/ab30e5 |
| Sediment accumulation expectations for growing desert cities: a realistic desired outcome to be used in constructing appropriately sized sediment storage of flood control structures | |
| Jeong, Ara | |
| 通讯作者 | Jeong, Ara |
| 来源期刊 | ENVIRONMENTAL RESEARCH LETTERS
 |
| ISSN | 1748-9326 |
| 出版年 | 2019 |
| 卷号 | 14期号:12 |
| 英文摘要 | Many rapidly urbanizing desert cities (RUDC) around the globe experience an acute risk of flooding. To reduce this risk, properly engineered flood control structures (FCS) must account for sediment accumulation as well as flood waters. While the Phoenix area, USA, uses regional data from non-urban, non-desert watersheds to generate sediment yield rates, the proposed desired outcome for RUDCs is to base FCS on data related to urbanization. Wolman (1967 Geogr. Ann. A 49 385-95) recognized that sediment yields spike during a relatively short period of bare-ground exposure associated with urban growth, followed by surface sealing resulting in a great reduction in sediment yield. This research presents a new analysis of empirical data where two regression models provide estimates of a more realistic sediment accumulation for arid regions and also urbanization of a desert cities: (i) linear regression between drainage area and sediment yield based on a compilation of more than 150 global sediment yield data for warm desert (BWh Koppen-Geiger) climate; and (ii) linear regression relating percent urban growth with sediment yield using available data on urbanization-generated sediment associated with growth of a desert city. The new model can be used to predict the realistic sediment accumulation for helping provide data where few data exists in urbanizing parts of arid Africa, southwest Asia, and India. |
| 英文关键词 | reservoir sedimentation flood control structure sediment yield rapidly urbanizing desert cities |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | USA |
| 开放获取类型 | gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000505976600001 |
| WOS关键词 | SOIL-EROSION ; CLIMATE-CHANGE ; YIELD ; RUNOFF ; URBAN ; MANAGEMENT ; RESERVOIRS ; CATCHMENT ; DELIVERY ; IMPACTS |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| EI主题词 | 2019-12-01 |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/311173 |
| 作者单位 | Sch Geog Sci & Urban Planning, Tempe, AZ 85287 USA |
| 推荐引用方式 GB/T 7714 | Jeong, Ara. Sediment accumulation expectations for growing desert cities: a realistic desired outcome to be used in constructing appropriately sized sediment storage of flood control structures[J],2019,14(12). |
| APA | Jeong, Ara.(2019).Sediment accumulation expectations for growing desert cities: a realistic desired outcome to be used in constructing appropriately sized sediment storage of flood control structures.ENVIRONMENTAL RESEARCH LETTERS,14(12). |
| MLA | Jeong, Ara."Sediment accumulation expectations for growing desert cities: a realistic desired outcome to be used in constructing appropriately sized sediment storage of flood control structures".ENVIRONMENTAL RESEARCH LETTERS 14.12(2019). |
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