| Titre | The influence of spatial and temporal resolution when simulating groundwater-surface water interactions with a fully integrated model |
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| Auteur | Frey, S K; Berg, S J; Hwang, H -T; Park, Y -J; Sudicky, E A; Russell, H A J |
| Source | GAC-MAC 2017, abstracts/GAC-MAC 2017, résumés; L'Association géologique du Canada-L'Association minéralogique du Canada, Réunion annuelle conjointe, Recueil des résumés vol. 40, 2017 p. 116  Accès ouvert |
| Liens | Online - En ligne (complete volume, PDF, 3.09 MB)
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| Année | 2017 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20160429 |
| Éditeur | Association géologique du Canada |
| Réunion | GAC-MAC 2017: Geological Association of Canada-Mineralogical Association of Canada Annual Meeting; Kingston, ON; CA; mai 14-18, 2017 |
| Document | publication en série |
| Lang. | anglais |
| Media | en ligne; numérique |
| Formats | pdf (Adobe® Reader®) |
| Sujets | hydrogéologie |
| Programme | Géoscience des eaux souterraines , Aquifer Assessment & support to mapping |
| Diffusé | 2017 05 01 |
| Résumé | (disponible en anglais seulement)
Increasingly, groundwater - surface water (GW-SW) interactions are being recognized for their significant influence on the hydrologic characteristics of
Southern Ontario. The behavior of the hydrologic system in turn has a strong influence on contaminant fate and transport, which then ultimately affects water quality within the Laurentian Great Lakes. Because of climate and topographic variability,
as well as heterogeneities in soil and subsurface lithology, quantifying GW-SW interactions at a scale meaningful to the Great Lakes requires the use of advanced modelling tools. However, in hydrologic modelling there is always a trade-off between
spatial scale and process resolution, and as of yet a comprehensive understanding of how model resolution influences simulated GW-SW interactions does not exist. To address this outstanding question, we are conducting a detailed modelling-based study
of GW-SW interactions within the Grand River Watershed, using the Hydro-GeoSphere fully-integrated GW-SW modeling platform. As part of the work, we are employing two watershed scale (7000 km2) models built at contrasting resolutions (low: 625K nodes;
high: 3.5M nodes) and an ultra-high resolution 2D cross-sectional model to simulate GW-SW exchanges. Using transient climate/weather data at temporal resolutions ranging from monthly to daily as forcing data, simulations are being conducted for a
range of different hydrologic conditions that span the drought to flood spectrum. Output from the simulations will be used to provide insight on how model spatial and temporal resolution can influence the interpretation of GW-SW interactions within a
heterogeneous and highly dynamic hydrologic environment. Results from this work are intended to guide future modelling initiatives that require realistic multi-dimensional and highly transient representation of the fully-coupled GW-SW flow
system. |
| Sommaire | (Résumé en langage clair et simple, non publié)
Étude préparatoire d'un modèle d'écoulement numérique des eaux souterraines dans le sud de l'Ontario en vue de la modélisation
régionale. |
| GEOSCAN ID | 299861 |
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