UWSpace is currently experiencing technical difficulties resulting from its recent migration to a new version of its software. These technical issues are not affecting the submission and browse features of the site. UWaterloo community members may continue submitting items to UWSpace. We apologize for the inconvenience, and are actively working to resolve these technical issues.
 

Impact of Geological Conceptualization on the Calibration of Groundwater Models at the Mannheim Wellfield, Kitchener, Ontario

dc.contributor.authorTong, Xin
dc.date.accessioned2018-12-10T17:30:37Z
dc.date.available2018-12-10T17:30:37Z
dc.date.issued2018-12-10
dc.date.submitted2018-12-07
dc.description.abstractThis study investigates the importance of geological data on the calibration of groundwater models using long term pumping/injection and monitoring well records at a wellfield in the Region of Waterloo, Ontario. Four different geological models with homogeneous geological layers are calibrated by coupling HydroGeoSphere (HGS) and the parameter estimation code PEST using water-level variation records collected during municipal well operations. The estimated hydraulic conductivity (𝐾) and specific storage (𝑆𝑆) are consistent to those obtained through previous aquifer tests. The four geological models are well calibrated with assigned initial 𝐾 and 𝑆𝑆 and yield reliable estimates for the upper layers where most data points are collected. However, the 𝐾 and 𝑆𝑆 estimated for lower layers with fewer observation points vary more significantly among the models. The comparison of simulated and observed drawdown for both model calibration and validation reveals that all four groundwater flow models with varying geology can capture the water-level fluctuation pattern quite well. However, these models fail to capture the rapid water- level variations at some wells. This study demonstrates the usefulness of water level fluctuation data resulting from municipal well operations in the calibration of groundwater flow models.en
dc.identifier.urihttp://hdl.handle.net/10012/14211
dc.language.isoenen
dc.pendingfalse
dc.publisherUniversity of Waterlooen
dc.subjectHydarulic tomographyen
dc.subjectGeolgical modelen
dc.subjectSubsurface heterogeneityen
dc.subjectModel calibration and validationen
dc.titleImpact of Geological Conceptualization on the Calibration of Groundwater Models at the Mannheim Wellfield, Kitchener, Ontarioen
dc.typeMaster Thesisen
uws-etd.degreeMaster of Scienceen
uws-etd.degree.departmentEarth and Environmental Sciencesen
uws-etd.degree.disciplineEarth Sciencesen
uws-etd.degree.grantorUniversity of Waterlooen
uws.contributor.advisorIllman, Walter
uws.contributor.affiliation1Faculty of Scienceen
uws.peerReviewStatusUnrevieweden
uws.published.cityWaterlooen
uws.published.countryCanadaen
uws.published.provinceOntarioen
uws.scholarLevelGraduateen
uws.typeOfResourceTexten

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Tong_Xin.pdf
Size:
5.34 MB
Format:
Adobe Portable Document Format
Description:
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
6.08 KB
Format:
Item-specific license agreed upon to submission
Description: