Graduate Thesis Or Dissertation

 

Observations of the coastal upwelling region off Oregon during 1972 Public Deposited

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/g158bk67s

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  • Observations of wind, currents, sea level and hydrography obtained during the 1972 Coastal Upwelling Experiment (CUE-I) are described. Only phenomena with periods longer than a day are considered. One section describes the changes observed during a period of variable winds in early July 1972. Another describes a ribbon of relatively cool water observed early in the upwelling season and attributes its existence to advection of Subarctic water by the coastal jet associated with upwelling. A third section describes the seasonal development of the upwelling regime between April and October 1972. These studies are combined with other studies of CUE-I data to provide a partial description of the upwelling regime which is compared to the conceptual model developed prior to CUE-I. It is concluded that the vertical and onshore velocity fields are as yet largely unknown. The alongshore velocity field includes southward surface flow with a coastal jet, a persistent vertical shear with deeper velocities northward relative to the surface and high coherence with the wind and sea level at periods of several days. A poleward undercurrent is observed, but it may not be an integral part of the upwelling regime. The hydrography has a strong seasonal cycle. Differences between any two sections between April and October l972 are smaller than between any of these and a section occupied in January 1973. Oscillations in the wind with periods of several days cause significant changes in the region inshore of 10 km and in the upper 20 m further offshore. Subsurface temperature observations are not coherent with the wind at periods of several days.
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-04-16T16:50:59Z (GMT) No. of bitstreams: 1 HuyerAdriana1974.pdf: 2026248 bytes, checksum: 1bb13417a4b01900b0de6c1499838d3c (MD5)
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-04-04T16:42:06Z (GMT) No. of bitstreams: 1 HuyerAdriana1974.pdf: 2026248 bytes, checksum: 1bb13417a4b01900b0de6c1499838d3c (MD5)
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