Knowledge Resource Center for Ecological Environment in Arid Area
| Development of a flood-frequency model for the river basins of the Central Region of Malawi as a tool for engineering design and disaster preparedness in flood-prone areas | |
| Laisi;Elton | |
| 出版年 | 2016 |
| 英文摘要 | Since 1971, a number of flood frequency models have been developed for river basins in Malawi for use in the design of hydraulic structures, but the varied nature of their results have most often given a dilemma to the design engineer due to differences in magnitudes of calculated floods for given return periods. All the known methods for flood frequency analysis developed in country so far have not used a homogeneity test for the river basins from which the hydrological data has been obtained. This study was thus conducted with a view to resolving this problem and hence improve the design of hydraulic structures such as culverts, bridges, water intake points for irrigation schemes, and flood protection dykes. In light of the above, during the course of this study the applicability of existing methods in the design of hydraulic structures was assessed. Also, the study investigated how land use and land cover change influence the frequency and magnitude of floods in the study area, and how their deleterious impacts on the socio-economic and natural environment in the river basins could be mitigated Environmental Sciences M. Sc. (Environmental Management) |
| 英文关键词 | Flood frequency Homogeneity test Hydraulic structures Land use and land cover change Return period 627.4096897 |
| 语种 | 英语 |
| URL | http://hdl.handle.net/10500/23597 |
| 资源类型 | 学位论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/250305 |
| 推荐引用方式 GB/T 7714 | Laisi;Elton. Development of a flood-frequency model for the river basins of the Central Region of Malawi as a tool for engineering design and disaster preparedness in flood-prone areas[D],2016. |
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