Abstract
A national groundwater-monitoring network consisting of 320 stations has been operated by the Ministry of Construction and Transportation and the Korea Water Resources Corporation since 1995. The network was established as a result of the Groundwater Act of Korea, and a supplementary local groundwater monitoring network containing 10,000 stations will be established throughout the country by the year 2011. A method of allocating stations and organizing the local monitoring network has been developed, based on the analytic hierarchy process (AHP), using pairwise comparison. Several evaluation criteria were selected for determining the required number of the monitoring stations at specific local districts. Weights of the selected criteria were assigned by the pairwise comparison, reflecting hydrogeological conditions and supported by pertinent questions to 93 groundwater experts. To evaluate appropriateness of this method, an example city, Jeonju, was selected where groundwater levels were monitored; seven stations were determined as to be required for the supplementary groundwater-monitoring network. The study demonstrated the usefulness of the AHP. The concepts of the development and the structure of the AHP model can be applied to site or well selections within a particular district.
Résumé
Un réseau national de surveillance des eaux souterraines comprenant 320 stations a été mis en place en Corée par le Ministère de la Construction et du Transport et la Corporation des Ressources en Eau de Corée depuis 1995. L’implémentation du réseau est le résultat du Décret Eaux Souterraines de Corée, et un réseau local supplémentaire de 10,000 stations sera installé sur tout le pays d’ici 2011. Une méthode de placement des stations et d’organisation du réseau local de surveillance a été développée sur base d’un processus de hiérarchie analytique (AHP en anglais) utilisant la comparaison par paire. Plusieurs critères d’évaluation ont été sélectionnés pour déterminer le nombre requis de stations de surveillance par districts locaux et spécifiques. Les poids des critères sélectionnés ont été déterminés par la comparaison par paire, reflétant les conditions hydrogéologiques et supportés par des questions pertinentes adressées à 93 experts en eau souterraine. Pour évaluer si cette méthode est appropriée ou non, l’exemple d’une ville où les niveaux des eaux souterraines sont surveillés, Jeonju, a été sélectionné; il a été déterminé que sept stations seraient nécessaires pour le réseau de surveillance supplémentaire. L’étude a démontré l’utilité de l’AHP. Les concepts du développement et de la structure du modèle AHP peuvent être appliqués pour la sélection de sites ou de puits à l’intérieur d’un district particulier.
Resumen
El Ministerio de Construcción y transportes y la Corporación de Recursos hídricos de Corea han mantenido desde 1995 una red de control de aguas subterráneas nacional consistente en 320 puntos de agua. La red se estableció como resultado de la Ley de Aguas subterráneas de Corea y sobre el año 2011 se establecerá una red suplementaria local con 10,000 puntos de agua. El método para localizar los puntos de agua y organizar la red de control local se ha basado en los Procesos Analíticos Jerarquizados (AHP) usando comparaciones por pares. Se seleccionaron varios criterios de evaluación para determinar el números de puntos de agua monitorizados necesarios en distritos locales específicos. Los pesos de los criterios seleccionados se asignaron mediante comparaciones por pares, reflejando condiciones hidrogeológicas y soportados por preguntas pertinentes a 93 expertos en aguas subterráneas. Para evaluar lo apropiado de este método se seleccionó una ciudad de ejemplo, Jeonju, en la que los niveles de agua subterránea fueron monitorizados; se determinó que se necesitaban siete puntos de agua para la red de control suplementaria. El estudio demostró la utilidad de AHP. Los conceptos del desarrollo y la estructura del modelo AHP puede ser aplicado para situar o seleccionar pozos dentro de un distrito particular.
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The authors wish to thank two anonymous reviewers and Angel Martin for their helpful comments and technical corrections, which greatly improved the initial manuscript. All relevant staff of KOWACO and GeoGreen21 Co., Ltd. are also greatly appreciated.
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Kim, JW., Lee, JY., Yi, MJ. et al. Allocating local groundwater monitoring stations for South Korea using an analytic hierarchy process. Hydrogeol J 15, 615–632 (2007). https://doi.org/10.1007/s10040-007-0168-y
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DOI: https://doi.org/10.1007/s10040-007-0168-y