Next Article in Journal
Effect of a Submerged Zone and Carbon Source on Nutrient and Metal Removal for Stormwater by Bioretention Cells
Next Article in Special Issue
Calibration of SWAT and Two Data-Driven Models for a Data-Scarce Mountainous Headwater in Semi-Arid Konya Closed Basin
Previous Article in Journal
Quantifying Urban Bioswale Nitrogen Cycling in the Soil, Gas, and Plant Phases
Previous Article in Special Issue
Infilling Missing Data in Hydrology: Solutions Using Satellite Radar Altimetry and Multiple Imputation for Data-Sparse Regions
Open AccessArticle

Hydrological Guidelines for Reservoir Operation to Enhance Water Governance: Application to the Brazilian Semiarid Region

Department of Agricultural Engineering, Federal University of Ceará, Fortaleza CEP 60455-900, CE, Brazil
Institute for Engineering and Sustainable Development, University of International Afro-Brazilian Integration, UNILAB, Redenção CEP 62790-000, CE, Brazil
COGERH, Water Resources State Company, Fortaleza CEP 60824-140, CE, Brazil
Author to whom correspondence should be addressed.
Water 2018, 10(11), 1628;
Received: 12 October 2018 / Revised: 1 November 2018 / Accepted: 8 November 2018 / Published: 12 November 2018
(This article belongs to the Special Issue Hydrologic Modelling for Water Resources and River Basin Management)
The Brazilian water legislation advocates that some uses have priority over others, but this aspect has never been clearly addressed, generating conflicts. Water authorities usually refer to hydrological models to justify their decisions on water allocation. However, a significant group of stakeholders does not feel qualified to discuss these models and is excluded from the decision process. We hereby propose a hydrologically robust method to correlate water uses with their respective reservoir alert volumes, which should empower the less formally educated stakeholders. The method consists of: (i) generating the water yield versus reliability curve, using a stochastic approach; (ii) generating the yield versus alert volume family of curves, using a water-balance approach; (iii) calibrating the key parameter T (depletion duration) using field data; and (iv) associating each water use with its alert volume. We have applied the method to four of the largest reservoirs (2 × 103–2 × 102 hm3) in the semi-arid Ceará State. The results indicate that low-priority water uses should be rationalized when the reservoir volume is below 20%, whereas uses with very high priority should start rationalization when it is below 11%. These hydrological guidelines should help enhance water governance among non-specialist stakeholders in water-scarce and reservoir-dependent regions. View Full-Text
Keywords: reservoirs; water allocation; water scarcity; alert volume; governance reservoirs; water allocation; water scarcity; alert volume; governance
Show Figures

Graphical abstract

MDPI and ACS Style

De Araújo, J.C.; Mamede, G.L.; De Lima, B.P. Hydrological Guidelines for Reservoir Operation to Enhance Water Governance: Application to the Brazilian Semiarid Region. Water 2018, 10, 1628.

Show more citation formats Show less citations formats
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

Search more from Scilit
Back to TopTop