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Water 2015, 7(6), 2952-2970; doi:10.3390/w7062952

Comments on Uncertainty in Groundwater Governance in the Volcanic Canary Islands, Spain

1
Department of Geo-Engineering, Technical University of Catalonia (UPC), Jordi Girona, 1-3, Barcelona ES-08034, Spain
2
Departamento de Física (GEOVOL), Universidad de las Palmas de Gran Canaria, Campus Universitario de Tarifa, Las Palmas de Gran Canaria ES-35017, Spain
3
Hydrogelogist-Consultant, Santa Cruz de Tenerife 38111, Spain
4
La Laguna University, La Laguna (Tenerife) 38001, Spain
Retired.
*
Author to whom correspondence should be addressed.
Academic Editor: Athanasios Loukas
Received: 30 March 2015 / Revised: 4 June 2015 / Accepted: 8 June 2015 / Published: 17 June 2015
(This article belongs to the Special Issue Study, Development and Management of Water in Volcanic Areas)
View Full-Text   |   Download PDF [5114 KB, uploaded 17 June 2015]   |  

Abstract

The uncertainty associated with natural magnitudes and processes is conspicuous in water resources and groundwater evaluation. This uncertainty has an essential component and a part that can be reduced to some extent by increasing knowledge, improving monitoring coverage, continuous elaboration of data and accuracy and addressing the related economic and social aspects involved. Reducing uncertainty has a cost that may not be justified by the improvement that is obtainable, but that has to be known to make the right decisions. With this idea, this paper contributes general comments on the evaluation of groundwater resources in the semiarid Canary Islands and on some of the main sources of uncertainty, but a full treatment is not attempted, nor how to reduce it. Although the point of view is local, these comments may help to address similar situations on other islands where similar problems appear. A consequence of physical and hydrological uncertainty is that different hydrogeological and water resource studies and evaluations may yield different results. Understanding and coarsely evaluating uncertainty helps in reducing administrative instability, poor decisions that may harm groundwater property rights, the rise of complaints and the sub-optimal use of the scarce water resources available in semiarid areas. Transparency and honesty are needed, but especially a clear understanding of what numbers mean and the uncertainty around them, to act soundly and avoid conflicting and damaging rigid attitudes. However, the different situations could condition that what may be good in a place, may not always be the case in other places. View Full-Text
Keywords: uncertainty; groundwater; governance; Canary Islands uncertainty; groundwater; governance; Canary Islands
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Custodio, E.; Cabrera, M.C.; Poncela, R.; Cruz-Fuentes, T.; Naranjo, G.; de Miguel, L.O.P. Comments on Uncertainty in Groundwater Governance in the Volcanic Canary Islands, Spain. Water 2015, 7, 2952-2970.

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