Next Article in Journal
Temporal Variability of Suspended-Solids Concentration in the Estuarine Channel of Patos Lagoon, Southern Brazil
Previous Article in Journal
Application of LSTM Networks for Water Demand Prediction in Optimal Pump Control
 
 
Article

Sustainable Surface Water Storage Development Pathways and Acceptable Limits for River Basins

1
International Water Management Institute (IWMI), P.O. Box 2075, Colombo 10120, Sri Lanka
2
UNU Institute for Water Environment and Health, 204–175, Longwood Road South, Hamilton, ON L8P 0A1, Canada
3
Faculty of Engineering Technology, Open University of Sri Lanka, P. O. Box 21, Nawala, Nugegoda 10250, Sri Lanka
*
Author to whom correspondence should be addressed.
Academic Editor: Xing Fang
Water 2021, 13(5), 645; https://doi.org/10.3390/w13050645
Received: 22 January 2021 / Revised: 17 February 2021 / Accepted: 18 February 2021 / Published: 28 February 2021
(This article belongs to the Section Water Resources Management, Policy and Governance)
This paper addresses the questions of acceptable upper limits for storage development and how best to deploy storage capacity in the long-term planning of built surface water storage in river basins. Storage-yield curves are used to establish sustainable storage development pathways and limits for a basin under a range of environmental flow release scenarios. Optimal storage distribution at a sub-basin level, which complies with an identified storage development pathway, can also be estimated. Two new indices are introduced—Water Supply Sustainability and Environmental Flow Sustainability—to help decide which pathways and management strategies are the most appropriate for a basin. Average pathways and conservative and maximum storage limits are illustrated for two example basins. Conservative and maximum withdrawal limits from storage are in the range of 45–50% and 60–65% of the mean annual runoff. The approach can compare the current level of basin storage with an identified pathway and indicate which parts of a basin are over- or under-exploited. A global storage–yield–reliability relationship may also be developed using statistics of annual basin precipitation to facilitate water resource planning in ungauged basins. View Full-Text
Keywords: surface water storage; reservoirs; sustainability; environmental flows; acceptable limits; pathways surface water storage; reservoirs; sustainability; environmental flows; acceptable limits; pathways
Show Figures

Figure 1

MDPI and ACS Style

Eriyagama, N.; Smakhtin, V.; Udamulla, L. Sustainable Surface Water Storage Development Pathways and Acceptable Limits for River Basins. Water 2021, 13, 645. https://doi.org/10.3390/w13050645

AMA Style

Eriyagama N, Smakhtin V, Udamulla L. Sustainable Surface Water Storage Development Pathways and Acceptable Limits for River Basins. Water. 2021; 13(5):645. https://doi.org/10.3390/w13050645

Chicago/Turabian Style

Eriyagama, Nishadi, Vladimir Smakhtin, and Lakshika Udamulla. 2021. "Sustainable Surface Water Storage Development Pathways and Acceptable Limits for River Basins" Water 13, no. 5: 645. https://doi.org/10.3390/w13050645

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop