Sustainable surface water storage development pathways and acceptable limits for river basins

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...

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Main Authors: Eriyagama, Nishadi, Smakhtin, V., Udamulla, L.
Format: Journal Article
Language:Inglés
Published: MDPI 2021
Subjects:
Online Access:https://hdl.handle.net/10568/113174
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author Eriyagama, Nishadi
Smakhtin, V.
Udamulla, L.
author_browse Eriyagama, Nishadi
Smakhtin, V.
Udamulla, L.
author_facet Eriyagama, Nishadi
Smakhtin, V.
Udamulla, L.
author_sort Eriyagama, Nishadi
collection Repository of Agricultural Research Outputs (CGSpace)
description 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.
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spelling CGSpace1131742024-06-26T10:09:16Z Sustainable surface water storage development pathways and acceptable limits for river basins Eriyagama, Nishadi Smakhtin, V. Udamulla, L. surface water water storage water supply water yield river basin management reservoirs planning sustainability strategies environmental flows water extraction runoff dams precipitation case studies models 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. 2021-02-28 2021-03-31T10:44:38Z 2021-03-31T10:44:38Z Journal Article https://hdl.handle.net/10568/113174 en Open Access MDPI Eriyagama, Nishadi; Smakhtin, V.; Udamulla, L. 2021. Sustainable surface water storage development pathways and acceptable limits for river basins. Water, 13(5):645. [doi: https://doi.org/10.3390/w13050645]
spellingShingle surface water
water storage
water supply
water yield
river basin management
reservoirs
planning
sustainability
strategies
environmental flows
water extraction
runoff
dams
precipitation
case studies
models
Eriyagama, Nishadi
Smakhtin, V.
Udamulla, L.
Sustainable surface water storage development pathways and acceptable limits for river basins
title Sustainable surface water storage development pathways and acceptable limits for river basins
title_full Sustainable surface water storage development pathways and acceptable limits for river basins
title_fullStr Sustainable surface water storage development pathways and acceptable limits for river basins
title_full_unstemmed Sustainable surface water storage development pathways and acceptable limits for river basins
title_short Sustainable surface water storage development pathways and acceptable limits for river basins
title_sort sustainable surface water storage development pathways and acceptable limits for river basins
topic surface water
water storage
water supply
water yield
river basin management
reservoirs
planning
sustainability
strategies
environmental flows
water extraction
runoff
dams
precipitation
case studies
models
url https://hdl.handle.net/10568/113174
work_keys_str_mv AT eriyagamanishadi sustainablesurfacewaterstoragedevelopmentpathwaysandacceptablelimitsforriverbasins
AT smakhtinv sustainablesurfacewaterstoragedevelopmentpathwaysandacceptablelimitsforriverbasins
AT udamullal sustainablesurfacewaterstoragedevelopmentpathwaysandacceptablelimitsforriverbasins