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Geometry and composition of ice banks in a macrotidal channel

dc.contributor.authorBlack, CarolAnne
dc.contributor.copyright-releaseNot Applicableen_US
dc.contributor.degreeMaster of Scienceen_US
dc.contributor.departmentDepartment of Oceanographyen_US
dc.contributor.ethics-approvalNot Applicableen_US
dc.contributor.external-examinerBrian G. Sandersonen_US
dc.contributor.graduate-coordinatorDan Kelleyen_US
dc.contributor.manuscriptsNot Applicableen_US
dc.contributor.thesis-readerAlex E. Hayen_US
dc.contributor.thesis-readerTetjana Rossen_US
dc.contributor.thesis-supervisorPaul S. Hillen_US
dc.date.accessioned2013-05-30T17:18:41Z
dc.date.available2013-05-30T17:18:41Z
dc.date.defence2013-05-17
dc.date.issued2013-05-30
dc.description.abstractLarge ice blocks containing enough sediment to be denser than sea water form in the Minas Basin of the Bay of Fundy. The timing of ice block formation and ice block composition were monitored to improve understanding of the potential threat to tidal power generators posed by collision with ice blocks. Large blocks are produced from ice cliffs that form when anchored ice obstructs tidal channels and decreases flow speed. Decreased flow causes the channel cross-sectional area to decrease. In 2012, the Kennetcook River cross- sectional area decreased by 21% due to the formation of ice cliffs. Large ice blocks separated from the walls during the two spring tides following a 20-day time lag of the minimum air temperature. Ten percent of sampled ice blocks were denser than freshwater. Four of twelve ice cores collected from the ice cliffs along the Kennetcook River contained enough sediment to become denser than seawater.en_US
dc.identifier.urihttp://hdl.handle.net/10222/22170
dc.language.isoenen_US
dc.subjectMinas Basin, sediment-laden ice, ice, Bay of Fundy, tidal channelen_US
dc.titleGeometry and composition of ice banks in a macrotidal channelen_US

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