Climatic and spatial variabilities of potential rainwater savings and economic benefits for Kathmandu Valley
| Autor: | Md. Rezaul Karim, Iqbal Hossain, Ramesh Karki, Monzur Alam Imteaz |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Environmental Engineering
010504 meteorology & atmospheric sciences Rainwater tank Climatic variability 010501 environmental sciences 01 natural sciences Economic benefits Rainwater harvesting Water balance Earth and Planetary Sciences (miscellaneous) Environmental science Spatial variability Water resource management Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology |
| Zdroj: | International Journal of Hydrology Science and Technology. 7:213 |
| ISSN: | 2042-7816 2042-7808 |
| DOI: | 10.1504/ijhst.2017.10008021 |
| Popis: | This paper presented a detailed analysis of potential rainwater savings and economic benefits under different climatic conditions in three regions of Kathmandu Valley in Nepal. Analysis was performed using an earlier validated daily water balance model, eTank utilising historical daily rainfall data from the selected regions. It was found that significant climatic and spatial variations exist in potential water savings. Another important finding is that even for neighbouring regions potential water savings are not proportional to the mean annual rainfalls of the regions. Also, it is found that considering a mix of dry, average and wet years, average payback periods of initial investments will vary among the regions from 2.5-3.5 years if the residents use their existing tanks for rainwater harvesting and from approximately 8-11 years if residents need to construct new tanks. |
| Databáze: | OpenAIRE |
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