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dc.contributor.authorGibbs, M
dc.contributor.authorAbell, J
dc.contributor.authorHamilton, D
dc.date.accessioned2017-05-12T05:23:17Z
dc.date.available2017-05-12T05:23:17Z
dc.date.issued2016
dc.identifier.issn0028-8330
dc.identifier.doi10.1080/00288330.2015.1116998
dc.identifier.urihttp://hdl.handle.net/10072/336696
dc.description.abstractMeteorological forcing on the surface of a lake can generate mixing and transport processes that alter water quality. This study examined how meteorological forcing affected water currents in Lake Rotorua—a large, shallow, temperate, polymictic lake—during a period of sustained vertical mixing and strong winds. Acoustic Doppler current profiler (ADCP) measurements were recorded at two sites and a hydrodynamic model (ELCOM) was used to simulate water movement over the period of ADCP measurements. Model simulations show circulation patterns in Lake Rotorua are strongly influenced by the topography of the lake and, to a lesser extent, the catchment, with little variation in currents with depth during winter mixing. Northeasterly winds produced a clockwise circulation around the mid-lake island with a second anticlockwise gyre between the island and the western shore. This circulation pattern is consistent with topographic gyres found in other large lakes. A shift to a weaker southwesterly wind caused these circulation patterns to reverse direction over a period of c. 6 h, with a weak secondary gyre also occurring within the main anticlockwise circulation. The effect of this circulation pattern on the resuspension of sediment and thus potential in-lake phosphorus control strategies is considered.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherTaylor & Francis Asia Pacific
dc.relation.ispartofpagefrom209
dc.relation.ispartofpageto227
dc.relation.ispartofissue2
dc.relation.ispartofjournalNew Zealand Journal of Marine and Freshwater Research
dc.relation.ispartofvolume50
dc.subject.fieldofresearchPhysical Geography and Environmental Geoscience not elsewhere classified
dc.subject.fieldofresearchEarth Sciences
dc.subject.fieldofresearchEnvironmental Sciences
dc.subject.fieldofresearchBiological Sciences
dc.subject.fieldofresearchcode040699
dc.subject.fieldofresearchcode04
dc.subject.fieldofresearchcode05
dc.subject.fieldofresearchcode06
dc.titleWind forced circulation and sediment disturbance in a temperate lake
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorHamilton, David P.


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