Your search found 5 records
1 Herath, S.; Pathirana, A.; Weerakoon, S. B. (Eds.) 2004. Proceedings of the International Conference on Sustainable Water Resources Management in the Changing Environment of the Monsoon Region. Bandaranaika Memorial International Conference Hall, Colombo, Sri Lanka, 17-19 November 2004. Vol.1. Colombo, Sri Lanka: National Water Resources Secretariat. 454p.
Water resource management ; River basins ; Stream flow ; Climate change ; Rainfall-runoff relationships ; Simulation models ; Hydrology ; Erosion ; Precipitation ; Natural disasters ; Flood control ; Irrigation management ; Mathematical models ; Recharge ; Aquifers / Sri Lanka / China / Albania / India / Pakistan / Australia / Bangladesh / Thailand / Japan / Uganda / Brunei / Kelani River Basin / Upper Kotmale Basin / Upper Mahaweli / Kandy Lake / Rekawa Lagoon / Walawe Basin / Deduru Oya / Yangtze River / Hilkot Watershed / Khlong U-Tapo River Basin / Khuwae Noi River Basin / Kerala / Tamil Nadu / Vaippar Basin / Bagmati Reservoir / Cauvery river / Achankovil River / Cuddalore Basin / Tokyo / Kallar River Basin
(Location: IWMI-HQ Call no: 333.91 G000 HER Record No: H039492)
2 Pathirana, A.; Herath, S. 2004. Assessment of atmospheric brown cloud impacts on local climate with a modified mesoscale atmospheric model. In Herath, S.; Pathirana, A.; Weerakoon, S. B. (Eds.). Proceedings of the International Conference on Sustainable Water Resources Management in the Changing Environment of the Monsoon Region. Bandaranaika Memorial International Conference Hall, Colombo, Sri Lanka, 17-19 November 2004. Vol.1. Colombo, Sri Lanka: National Water Resources Secretariat. pp.34-41.
(Location: IWMI-HQ Call no: 333.91 G000 HER Record No: H039497)
3 Herath, S.; Pathirana, A.; Swain, D. 2004. Integrated assessment of atmospheric brown cloud impacts: A gleam case study. In Herath, S.; Pathirana, A.; Weerakoon, S. B. (Eds.). Proceedings of the International Conference on Sustainable Water Resources Management in the Changing Environment of the Monsoon Region. Bandaranaika Memorial International Conference Hall, Colombo, Sri Lanka, 17-19 November 2004. Vol.1. Colombo, Sri Lanka: National Water Resources Secretariat. pp.141-148.
(Location: IWMI-HQ Call no: 333.91 G000 HER Record No: H039507)
4 Herath, S.; Pathirana, A.; Weerakoon, S. B. (Eds.) 2004. Proceedings of the International Conference on Sustainable Water Resources Management in the Changing Environment of the Monsoon Region. Bandaranaika Memorial International Conference Hall, Colombo, Sri Lanka, 17-19 November 2004. Vol.II. Colombo, Sri Lanka: National Water Resources Secretariat. pp.455-787.
Water resource management ; Water resources development ; Rivers ; Reservoirs ; Dams ; Soil moisture ; Remote sensing ; Climate change ; Groundwater ; Aquifers ; Water pollution ; Irrigation management ; Irrigation canals ; Participatory management ; Farmer participation ; Water harvesting ; Recharge ; Water policy ; Legal aspects ; Water user associations / Asia / India / Nepal / Sri Lanka / Uganda / Brunei / China / Rekawa Lagoon / Walawe Basin / Deduru Oya / Mahaweli River / Kandy Lake / Hanguranketha / Cauvery River / Cuddalore Basin / Kerala / Tamil Nadu / Mangla Dam / Tokyo
(Location: IWMI-HQ Call no: 333.91 G000 HER Record No: H039529)
5 Randeniya, A.; Radhakrishnan, M.; Sirisena, T. A. J. G.; Masih, I.; Pathirana, A.. 2022. Equity - performance trade-off in water rationing regimes with domestic storage. Water Supply, 22(5):4781-4797. [doi: https://doi.org/10.2166/ws.2022.188]
Water supply ; Water storage ; Domestic water ; Equity ; Water scarcity ; Water security ; Water resources ; Storage tanks ; Water availability ; Hydraulic models ; Households / Sri Lanka / North Western Province / Puttalam / Kakkapalliya Water Supply Scheme
(Location: IWMI HQ Call no: e-copy only Record No: H051517)
https://iwaponline.com/ws/article-pdf/22/5/4781/1076534/ws022054781.pdf
https://vlibrary.iwmi.org/pdf/H051517.pdf
https://vlibrary.iwmi.org/pdf/H051517.pdf
(0.90 MB) (916 KB)
Water rationing contributes to inequalities in the water supply. Household storage tanks complicate the performance and the hydraulic modelling of these systems. Rationing is often not based on insights into system performance and fails to achieve equity and the operators struggle to explain the rationing tactics to the stakeholders. Understanding the behaviour of water networks rationed regularly is essential to resolve the supply inequalities. We present a contextual analytical framework for understanding and managing water rationing based on the duration of supply (cycle time), rationing fraction (duration of non-supply) and domestic storage to analyse the equity and performance in the water network. The framework was tested using a model of a distribution network in Kakkapalliya, Sri Lanka, under different rationing schemes. The results show that large household tanks create inequities, which can be reduced through a trade-off by increasing the cycle-time of the rationing with a minor reduction in performance. Very small or non-existent domestic storage also negatively impacts the performance and equity of stressed water networks. Resolution of supply inequalities can be achieved through the trade-off between equity and performance is possible through the operation of the water network and by the regulation of domestic storage in water rationing regimes.
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