Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.pce.2019.03.005 |
| Precipitation variations and shifts over time: Implication on Windhoek city water supply | |
| Shikangalah, Rosemary N.; Mapani, Benjamin | |
| 通讯作者 | Shikangalah, RN (corresponding author), Univ Namibia, Fac Humanities & Social Sci, Dept Geog, Private Bag 13301, Windhoek, Namibia. |
| 会议名称 | 18th WaterNet/WARFSA/GWPSA Symposium on Integrated Water Resources Development and Management - Innovative Technological Advances for Water Security in Eastern and Southern Africa |
| 会议日期 | OCT 25-27, 2017 |
| 会议地点 | Swakopmund, NAMIBIA |
| 英文摘要 | The scarcity of freshwater is a growing concern around the world, especially in the developing world and is increasingly threatening human survival in less affluent parts of the world. In arid and semiarid regions, freshwater resources are imperative for the survival of populations as well as development activities in urban centres. Preceding assessments for potential solutions have underestimated the scarcity of water by failing to capture main trends of precipitation and the extent of drought periods. This paper aims to investigate rainfall trends for the City of Windhoek, Namibia. A century scale is examined by reconstructing historical precipitation records, and future trends are subsequently estimated and interpolated using Ordinary Kriging in ArcGIS 10.3. Kriging responds and handles spatial correlation much better for observed data points. The results show locations that receive high rainfall and potential periods for harvesting rainwater. The findings further show that the periods of high rainfall are shorter, and after each high rainfall stretch, a long period of lower rainfall follows immediately. Each low rainfall period is anticipated to last longer than the previous one. These scenarios are highly significant for urban managers in dryland cities such as Windhoek, as they demonstrate when water would need to be extra sparingly managed. This study highlights the need for better water management strategies, if cities in dry climates are to survive the anticipated future water crises. |
| 英文关键词 | Precipitation trends Urban water shortage Water supply Water management |
| 来源出版物 | PHYSICS AND CHEMISTRY OF THE EARTH |
| ISSN | 1474-7065 |
| EISSN | 1873-5193 |
| 出版年 | 2019 |
| 卷号 | 112 |
| 页码 | 103-112 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 类型 | Article; Proceedings Paper |
| 语种 | 英语 |
| 收录类别 | CPCI-S |
| WOS记录号 | WOS:000491169000013 |
| WOS关键词 | CLIMATE-CHANGE ; SOUTHERN AFRICA ; SPATIAL INTERPOLATION ; RAINFALL VARIABILITY ; NORTHERN ; 20TH-CENTURY ; MANAGEMENT ; SCARCITY ; DROUGHTS ; LESSONS |
| WOS类目 | Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources |
| WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
| 资源类型 | 会议论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/369964 |
| 作者单位 | [Shikangalah, Rosemary N.] Univ Namibia, Fac Humanities & Social Sci, Dept Geog, Private Bag 13301, Windhoek, Namibia; [Mapani, Benjamin] Univ Namibia, Fac Sci, Dept Geol, Private Bag 13301, Windhoek, Namibia |
| 推荐引用方式 GB/T 7714 | Shikangalah, Rosemary N.,Mapani, Benjamin. Precipitation variations and shifts over time: Implication on Windhoek city water supply[C]:PERGAMON-ELSEVIER SCIENCE LTD,2019:103-112. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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