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dc.contributor.authorWichers, Sacha  Concept link
dc.coverage.spatial26°'08'N, 44°'49'W
dc.date.accessioned2007-05-14T19:06:39Z
dc.date.available2007-05-14T19:06:39Z
dc.date.issued2005-02
dc.identifier.urihttps://hdl.handle.net/1912/1640
dc.descriptionSubmitted in partial fulfillment of the requirements for Master of Science in Ocean Engineering at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution September 2005en
dc.description.abstractHydrothermal vents discharge superheated, mineral rich water into our oceans, thereby providing a habitat for exotic chemosynthetic biological communities. Hydrothermal fluids are convected upwards until they cool and reach density equilibrium, at which point they advect laterally with the current. The neutrally buoyant plume layer can have length scales on the order of several kilometers, and it therefore provides the best means to detect the presence of vent fields on the seafloor, which typically have length scales on the order of a few meters. This thesis uses field measurements of the velocity, temperature and particulate anomalies associated with the TAG hydrothermal plume to demonstrate that tidal currents exert a strong impact on the plume shape, and to provide new constraints on the thermal power of the TAG hydrothermal system. The results show that the power output of the TAG system is on the order of 6000 MW, which is up to two orders of magnitude greater than previous estimates, and that there is considerably more entrainment than had previously been assumed.en
dc.description.sponsorshipFunding for this research has been provided by: WHO1 Academic Programs Office, and NSF grant #I5 170100 (ITR).en
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.publisherMassachusetts Institute of Technology and Woods Hole Oceanographic Institutionen
dc.relation.ispartofseriesWHOI Thesesen
dc.subjectHydrothermal ventsen_US
dc.subjectTidal currentsen_US
dc.subjectPlumesen_US
dc.titleVerification of numerical models for hydrothermal plume water through field measurements at TAGen
dc.typeThesisen
dc.identifier.doi10.1575/1912/1640


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