Three-dimensional geologic modeling and visualization of the Virttaankangas aquifer, southwestern Finland

Artimo, Aki; Mäkinen, Joni; Berg, Richard C.; Abert, Curtis C.; Salonen, Veli‐Pekka

doi:10.1007/s10040-003-0256-6

Cited by 34 publications

(22 citation statements)

References 8 publications

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“…1). The Virttaankangas plain hosts an operational MAR plant that provides a potable water resource for over 300,000 inhabitants within the Turku city region (Artimo et al 2003(Artimo et al , 2008. The MAR plant consists of several infiltration ponds and pumping stations as well as numerous observation wells at strategic locations within the eskers elements (e.g.…”

Section: Study Area Field Areamentioning

confidence: 99%

“…Bedrock topography is provided by a rough modeling of a network of gravity data points (Valjus 2006). The depositional environments and related depositional stages during the last deglaciation as well as related main hydrogeological units have been studied earlier by several authors (Artimo et al 2003;Mäkinen 2003a, b;Mäkinen and Räsänen 2003). The two survey profiles in this study were targeted to delineate the most complex parts of the coarse-grained hydrogeological unit (Fig.…”

Section: Study Area Field Areamentioning

confidence: 99%

“…Finally, the fan and kettle hole morphology have been levelled by intense erosion (10-20 m) due to shoreline processes. The large MUKH structures with often fine-grained margins have marked influence on groundwater flow properties and are thus treated as separate sedimentological units in the groundwater flow model (Artimo et al 2003(Artimo et al , 2010 cores is still poorly known, but it forms a marked widening of the coarse-grained hydrogeological unit. This widening is also associated with a secondary esker enlargement on the eastern side of the main core.…”

Section: Geological Setting and Three-dimensional Geologic Modelmentioning

confidence: 99%

“…The main objective of this study is to test the applicability of the newly developed MEMs-based landstreamer (Brodic et al 2015) as an advanced seismic method for aquifer characterization within complex glaciofluvial deposits with thick (10-40 m) dry sediments above the water table. The present study focuses on the coarse-grained glaciofluvial hydrogeological unit that forms the main Virttaankangas esker aquifer (Artimo et al 2003) within the MAR plant area. The main aquifer includes the boulder-rich esker core (50-150 m wide) that has a high hydraulic conductivity-10 −4 to 10 0 m/s for the whole coarsegrained unit (Artimo et al 2003) and is the target for pumping station locations.…”

Section: Introductionmentioning

confidence: 99%

“…The present study focuses on the coarse-grained glaciofluvial hydrogeological unit that forms the main Virttaankangas esker aquifer (Artimo et al 2003) within the MAR plant area. The main aquifer includes the boulder-rich esker core (50-150 m wide) that has a high hydraulic conductivity-10 −4 to 10 0 m/s for the whole coarsegrained unit (Artimo et al 2003) and is the target for pumping station locations.…”

Section: Introductionmentioning

confidence: 99%

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Interlobate esker architecture and related hydrogeological features derived from a combination of high-resolution reflection seismics and refraction tomography, Virttaankangas, southwest Finland

et al. 2016

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A novel high-resolution (2-4 m source and receiver spacing) reflection and refraction seismic survey was carried out for aquifer characterization and to confirm the existing depositional model of the interlobate esker of Virttaankangas, which is part of the Säkylänharju-Virttaankangas glaciofluvial esker-chain complex in southwest Finland. The interlobate esker complex hosting the managed aquifer recharge (MAR) plant is the source of the entire water supply for the city of Turku and its surrounding municipalities. An accurate delineation of the aquifer is therefore critical for long-term MAR planning and sustainable use of the esker resources. Moreover, an additional target was to resolve the poorly known stratigraphy of the 70-100-m-thick glacial deposits overlying a zone of fractured bedrock. Bedrock surface as well as fracture zones were confirmed through combined reflection seismic and refraction tomography results and further validated against existing borehole information. The highresolution seismic data proved successful in accurately delineating the esker cores and revealing complex stratigraphy from fan lobes to kettle holes, providing valuable information for potential new pumping wells. This study illustrates the potential of geophysical methods for fast and cost-effective esker studies, in particular the digital-based landstreamer and its combination with geophone-based wireless recorders, where the cover sediments are reasonably thick.

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Section: Study Area Field Areamentioning

confidence: 99%

Section: Study Area Field Areamentioning

confidence: 99%

Section: Geological Setting and Three-dimensional Geologic Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Interlobate esker architecture and related hydrogeological features derived from a combination of high-resolution reflection seismics and refraction tomography, Virttaankangas, southwest Finland

et al. 2016

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Integrated frameworks for assessing and managing health risks in the context of managed aquifer recharge with river water

Assmuth

Simola

Pitkänen

et al. 2015

Integr Envir Assess & Manag

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Integrated assessment and management of water resources for the supply of potable water is increasingly important in light of projected water scarcity in many parts of the world. This article develops frameworks for regional-level waterborne human health risk assessment of chemical and microbiological contamination to aid water management, incorporating economic aspects of health risks. Managed aquifer recharge with surface water from a river in Southern Finland is used as an illustrative case. With a starting point in watershed governance, stakeholder concerns, and value-at-risk concepts, we merge common methods for integrative health risk analysis of contaminants to describe risks and impacts dynamically and broadly. This involves structuring analyses along the risk chain: sources-releases-environmental transport and fate-exposures-health effects-socio-economic impacts-management responses. Risks attributed to contaminants are embedded in other risks, such as contaminants from other sources, and related to benefits from improved water quality. A set of models along this risk chain in the case is presented. Fundamental issues in the assessment are identified, including 1) framing of risks, scenarios, and choices; 2) interaction of models and empirical information; 3) time dimension; 4) distributions of risks and benefits; and 5) uncertainties about risks and controls. We find that all these combine objective and subjective aspects, and involve value judgments and policy choices. We conclude with proposals for overcoming conceptual and functional divides and lock-ins to improve modeling, assessment, and management of complex water supply schemes, especially by reflective solution-oriented interdisciplinary and multi-actor deliberation.

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High Definition Geovisualization: Earth and Biodiversity Sciences for Informal Audiences

Gardiner

Lecture Notes in Geoinformation and Cartography

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Three-dimensional geologic modeling and visualization of the Virttaankangas aquifer, southwestern Finland

Cited by 34 publications

References 8 publications

Interlobate esker architecture and related hydrogeological features derived from a combination of high-resolution reflection seismics and refraction tomography, Virttaankangas, southwest Finland

Interlobate esker architecture and related hydrogeological features derived from a combination of high-resolution reflection seismics and refraction tomography, Virttaankangas, southwest Finland

Integrated frameworks for assessing and managing health risks in the context of managed aquifer recharge with river water

High Definition Geovisualization: Earth and Biodiversity Sciences for Informal Audiences

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