Modeling Changes in Hydrate Stability Associated with Arctic Warming and its Impact on Slope

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dc.contributor.advisorPriest, Jeffrey A.
dc.contributor.advisorHayley, Jocelyn L. H.
dc.contributor.authorDebnath, Khokan
dc.contributor.committeememberWong, Ron C. K.
dc.date2019-06
dc.date.accessioned2018-12-18T16:21:30Z
dc.date.available2018-12-18T16:21:30Z
dc.date.issued2018-12-17
dc.description.abstractIf global warming continues at its current rate, widespread methane hydrate dissociation may occur leading to submarine slope instabilities. In this study, numerical models were developed to investigate the impact of different parameters, such as geothermal gradient, slope angle, rate of seafloor temperature rise, and hydrate saturation on the dissociated volume and potential for slope instabilities. It was found that the geothermal gradient impacts the shape of the hydrate stability zone and the pattern of hydrate dissociation. Slope stability analyses showed that steeper slopes fail earlier and produce lower dissociated hydrate volumes. Higher rate of seafloor temperature produces larger dissociated volume and leads to earlier slope failure. On the other hand, higher hydrate saturation leads to lower hydrate dissociated volume and causes to fail slope comparatively later than a slope with lower hydrate saturation.en_US
dc.identifier.citationDebnath. K. (2018). Modeling Changes in Hydrate Stability Associated with Arctic Warming and its Impact on Slope (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/34984
dc.identifier.urihttp://hdl.handle.net/1880/109364
dc.language.isoenen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectGas Hydrateen_US
dc.subjectHydrate stability zoneen_US
dc.subjecthydrate dissociated zoneen_US
dc.subjectHydrate bearing slope analysisen_US
dc.subjectpermafrosten_US
dc.subjectFrozen grounden_US
dc.subject.classificationEngineering--Civilen_US
dc.titleModeling Changes in Hydrate Stability Associated with Arctic Warming and its Impact on Slopeen_US
dc.typemaster thesisen_US
thesis.degree.disciplineEngineering – Civilen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrue
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