NDLI: Using three-dimensional geological mapping methods to inform sustainable groundwater development in a volcanic landscape, Victoria, Australia

Content Provider	Springer Nature Link
Author	Gill, Bruce Cherry, Don Adelana, Michael Cheng, Xiang Reid, Mark
Copyright Year	2011
Abstract	This study investigated the use of three-dimensional (3D) geological methods to provide better groundwater resource estimates for the Spring Hill area in central Victoria, Australia. Geological data were gathered in 3D geological software, which was utilised to derive fundamental dimensional parameters of the groundwater system in the study area. Mining industry software and hydrogeological methods were combined to give volumetric determinations of the basalt aquifer that were used to improve estimates of the groundwater resource. The methods reduce uncertainty about the physical attributes of the aquifer systems and greatly improve conceptual understanding of their behaviour. A simple numerical water-balance model was developed to refine the estimates of aquifer volume and fluxes to approximate observed water-level behaviour in the area. This enabled a much better comparison of groundwater resource use to the natural inputs and outputs for the area. A key conclusion was that the main issues for sustainable development and use in the study area are more to do with the physical aspects of the aquifer system, rather than simply the volume of water pumped. Visualisations of the area’s hydrogeology also provide improved hydrogeological understanding and communication for groundwater users and administrators.Cette étude examine l’utilisation de méthodes géologiques tridimensionnelles (3D) pour fournir de meilleures estimations des ressources en eau souterraine du secteur de Spring Hill, région centrale de Victoria, Australie. Les données géologiques réunies sur logiciel 3D ont été utilisées pour trouver les paramètres géométriques fondamentaux du système aquifère dans le secteur étudié. Un logiciel de l’industrie minière et des méthodes hydrogéologiques ont été utilisés pour connaître les dimensions de l’aquifère basaltique, et pour améliorer les estimations de la ressource en eau. Les méthodes réduisent l’incertitude sur les caractéristiques physiques des systèmes aquifères et améliorent grandement la compréhension conceptuelle de leur fonctionnement. Un bilan d’eau simple a été établi pour affiner les estimations du volume de l’aquifère et des flux, et les comparer aux variations du niveau d’eau dans le secteur. Ceci a rendu possible une bien meilleure comparaison des prélèvements avec la recharge et les avec les émergences du secteur. Une conclusion clef est que les principales questions posées pour le développement durable et l’utilisation de l’eau dans le secteur étudié sont plus dépendantes des caractéristiques physiques du système aquifère que du simple volume d’eau pompée. Les représentations de l’hydrogéologie du secteur aident aussi à une meilleure compréhension de l’information hydrogéologique par les utilisateurs de l’eau et par les gestionnaires.Este estudio investigó el uso de métodos geológicos trimensionales (3D) para proveer una mejor estimación de los recursos de agua subterránea para el área de Spring Hill en Victoria central, Australia. Los datos geológicos fueron reunidos en un software geológico 3D, el cual fue utilizado para deducir los parámetros dimensionales del sistema de agua subterránea en el área de estudio. Se combinaron software para la industria minera y métodos hidrogeológicos para lograr determinaciones volumétricas del acuífero basáltico que fueron usadas para mejorar la estimación del recurso de agua subterránea. Los métodos reducen la incerteza respecto a las propiedades físicas de los sistemas acuíferos y mejora grandemente el entendimiento conceptual de su comportamiento. Se desarrolló un simple modelo numérico de balance de agua para refinar las estimaciones de los volúmenes y los flujos del acuífero para aproximar el comportamiento de los niveles de agua observados en el área. Esto permitió una comparación mucho mejor del uso del recurso de agua subterránea respecto de la entrada y salida natural en el área. Una conclusión clave fue que los principales temas para el desarrollo sustentable y uso en el área de estudio tienen más que ver con los aspectos físicos del sistema acuífero, que con simplemente el volumen de agua bombeada. La visualización de la hidrogeología del área también provee mejorar el conocimiento hidrogeológico y la comunicación para usuarios y administradores del agua.本次研究调查三维地质填图方法的应用对澳大利亚维多利亚市中心Spring Hill区提供了更好的地下水资源评价。地质资料集合于3D地质软件中,用于获得本次研究中的地下水系统的基本维度参数。采矿工业软件和水文地质方法联合使用获取玄武岩含水层的容积测定,用于提高地下水资源的评价。该方法减少了含水层系统物理属性的不确定性,并且大大的提高了其性能的概念理解。对一个简单的数值水均衡模型进行改进,完善了含水层体积的估算以及通量观测用以逼近区域水位变化。这使得该地区地下水资源利用与自然的输入与输出有了更好的比较。关键结论是研究区可持续开发利用的主要问题是更多的含水层系统的物理性质,而非简单的抽水量。可视化的区域水文地质学为地下水用户和管理者提供了更好的水文地质认识和交流。No presente estudo foi investigada a utilização de métodos geológicos tri-dimensionais (3D) para se obterem estimativas melhoradas dos recursos hídricos subterrâneos na área de Spring Hill, em Vitória central, Austrália. Foi compilada informação geológica em software de geologia 3D que, por sua vez, foi usada para se obterem parâmetros dimensionais fundamentais do sistema aquífero na área de estudo. Combinou-se software da indústria mineira com métodos hidrogeológicos para se obterem determinações volumétricas do aquífero basáltico, que foram usadas para melhorar as estimativas dos recursos hídricos subterrâneos. Os métodos reduzem as incertezas acerca das características físicas dos sistemas aquíferos e aumentam visivelmente o entendimento conceptual do seu funcionamento. Um balanço hídrico numérico simples foi desenvolvido para refinar as estimativas do volume do aquífero e dos fluxos, de modo a aproximar o comportamento observado aos níveis de água na área. Este processo possibilitou uma melhor comparação do uso de recursos hídricos com as entradas e saídas naturais da área. A principal conclusão foi de que os principais factores para o desenvolvimento e uso sustentáveis na área de estudo estão mais relacionados com os aspectos físicos do sistema aquífero do que simplesmente com o volume de água extraído. As visualizações da hidrogeologia da área também proporcionam uma melhoria do conhecimento hidrogeológico e da comunicação com os utilizadores e administradores de água subterrânea.
Starting Page	1349
Ending Page	1365
Page Count	17
File Format	PDF
ISSN	14312174
Journal	Hydrogeology Journal
Volume Number	19
Issue Number	7
e-ISSN	14350157
Language	Portuguese
Publisher	Springer-Verlag
Publisher Date	2011-07-29
Publisher Institution	International Association of Hydrogeologists
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Australia Groundwater management Three-dimensional geological mapping Sustainable yield Volcanic aquifer Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Geology Hydrogeology
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Water Science and Technology

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